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2021https://polarbearscience.com/wp-content/uploads/2021/02/labrador-coast-daily-stage-of-development-2021-feb-7.gifLabrador Coast daily stage of development 2021 Feb 7https://polarbearscience.com/wp-content/uploads/2021/02/sea-ice-extent-canada-8-feb-2021.gifSea ice extent Canada 8 Feb 2021https://polarbearscience.com/wp-content/uploads/2021/02/east-coast-weekly-stage-of-development-2021-feb-1.gifEast Coast weekly stage of development 2021 Feb 1https://polarbearscience.com/wp-content/uploads/2021/02/east-coast-ice-stage-of-development-weekly-at-31-jan-2011.gifEast coast ice stage of development weekly at 31 Jan 2011https://polarbearscience.com/wp-content/uploads/2021/02/labrador-coast-daily-stage-of-development-2021-feb-3-ice-warning.gifLabrador Coast daily stage of development 2021 Feb 3 ice 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20212024-10-29T14:50:09+00:00monthlyhttps://polarbearscience.com/2021/08/22/western-hudson-bay-fat-polar-bear-video-from-the-shore-of-wakusp-national-park/2024-10-29T14:50:09+00:00monthlyhttps://polarbearscience.com/2021/12/22/walrus-video-you-can-let-your-kids-watch/2024-10-29T14:50:09+00:00monthlyhttps://polarbearscience.com/2019/02/01/two-polar-bears-onshore-in-coastal-labrador-one-relocated-for-public-safety/https://polarbearscience.com/wp-content/uploads/2019/02/labrador-coast-daily-stage-of-development-2019-feb-1.gifLabrador coast daily stage of development 2019 Feb 1https://polarbearscience.com/wp-content/uploads/2019/02/labrador-coast-daily-stage-of-development-2019-jan-28.gifLabrador coast daily stage of development 2019 Jan 28https://polarbearscience.com/wp-content/uploads/2019/02/makkovik-labrador-google-maps.jpgMakkovik Labrador Google mapshttps://polarbearscience.com/wp-content/uploads/2019/02/black-tickle-polar-bear-7-march-2017-kim-penney-photo-shared-cbc.jpgBlack Tickle polar-bear-7 March 2017 Kim Penney photo shared CBCPolar bear spotted near Black Tickle Labrador on 7 March 2017.2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/02/09/polar-bears-have-been-terrorizing-a-russian-town-on-the-barents-sea-since-december/https://polarbearscience.com/wp-content/uploads/2019/02/belushaya-guba-garbage-dump_daily-mail_11-feb-2019.jpgBelushaya Guba garbage dump_Daily Mail_11 Feb 2019https://polarbearscience.com/wp-content/uploads/2019/02/barents-sea-ice-extent-2018-feb-9_nis.pngBarents Sea ice extent 2018 Feb 9_NIShttps://polarbearscience.com/wp-content/uploads/2019/02/november-average-1982-nsidc-archive.jpgNovember average 1982 NSIDC archivehttps://polarbearscience.com/wp-content/uploads/2019/02/barents-sea-ice-extent-2019-jan-23_nis.pngBarents Sea ice extent 2019 Jan 23_NIShttps://polarbearscience.com/wp-content/uploads/2019/02/barents-sea-ice-extent-2018-dec-18_nis.pngBarents Sea ice extent 2018 Dec 18_NIShttps://polarbearscience.com/wp-content/uploads/2019/02/barents-sea-ice-extent-2018-nov-30_nis.pngBarents Sea ice extent 2018 Nov 30_NIShttps://polarbearscience.com/wp-content/uploads/2019/02/barents-sea-ice-extent-2019-feb-8_nis.pngBarents Sea ice extent 2019 Feb 8_NIShttps://polarbearscience.com/wp-content/uploads/2019/02/barents-sea-ice-2005-dec-7_nis-archive.gifBarents Sea ice 2005 Dec 7_NIS archivehttps://polarbearscience.com/wp-content/uploads/2019/02/belushya_guba_on_map_of_novaya_zemlya_sm-wikipedia-1.jpgBelushya_Guba_on_map_of_Novaya_Zemlya_SM wikipediahttps://polarbearscience.com/wp-content/uploads/2019/02/belushya_guba_on_map_of_novaya_zemlya_wikipedia.jpgBelushya_Guba_on_map_of_Novaya_Zemlya_wikipedia2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/02/14/polar-bears-walking-the-streets-on-novaya-zemlya-are-habituated-garbage-bears-not-victims-of-climate-change/https://polarbearscience.com/wp-content/uploads/2019/02/barents-sea-ice-extent-2019-feb-11_nis.pngBarents Sea ice extent 2019 Feb 11_NIShttps://polarbearscience.com/wp-content/uploads/2019/02/nilsen_when-the-internet-came-to-novaya-zemlya_cites-my-blog-post_14-feb-2019.jpgNilsen_when the internet came to Novaya Zemlya_cites my blog post_14 Feb 20192024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/02/19/polar-bears-driven-out-of-novaya-zemlya-town-onto-the-ice-by-persistent-harassment/https://polarbearscience.com/wp-content/uploads/2019/02/barents-sea-ice-extent-2019-feb-15_nis.pngBarents Sea ice extent 2019 Feb 15_NIShttps://polarbearscience.com/wp-content/uploads/2019/02/belushaya-guba-lurking-bear_daily-mail_11-feb-2019.jpgBelushaya Guba lurking bear_Daily Mail_11 Feb 2019A polar bear lurks in Belushaya Guba. From The Daily Mail story, 11 February 2019.2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/02/20/bear-on-shore-in-january-that-threatened-residents-of-foxe-basin-community-was-shot/https://polarbearscience.com/wp-content/uploads/2019/02/sea-ice-canada-2018-oct-31.gifSea ice Canada 2018 Oct 31https://polarbearscience.com/wp-content/uploads/2019/02/sea-ice-canada-2019-jan-3-e1550679438744.pngSea ice Canada 2019 Jan 3Sea ice in Hudson Bay and Foxe Basin, 3 January 2019. CIS.https://polarbearscience.com/wp-content/uploads/2019/02/igloolik-location_google-maps.jpgIgloolik location_Google mapshttps://polarbearscience.com/wp-content/uploads/2019/02/black-tickle-bears-again-15-march-2017-headline-vocm-e1550678763333.jpgBlack Tickle bears again 15 March 2017 headline VOCMPolar bear on shore in Labrador, early March 2017, VOCM report2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/02/26/international-polar-bear-day-a-time-to-admit-the-species-is-not-threatened-with-extinction-due-to-reduced-sea-ice-habitat/https://polarbearscience.com/wp-content/uploads/2019/02/bear-onshore-end-feb-2017_cbc-photo-facebook-e1551202290432.jpgBear onshore end Feb 2017_CBC photo facebookhttps://polarbearscience.com/wp-content/uploads/2019/02/castro-de-la-guardia-et-al-derocher-2017-whb-sea-ice-to-2015-fig-3.jpgCastro de la Guardia et al Derocher 2017 WHB sea ice to 2015 Fig 3https://polarbearscience.com/wp-content/uploads/2019/02/polar-bear-aug-2017-near-area-where-june-19-2018-bear-was-spotted-gordy-kidlapik.jpgPolar bear Aug 2017 near area where June 19 2018 bear was spotted Gordy KidlapikFat bear in August 2017 outside Arviat, Nunavut. Gordy Kidlapik photo.2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/03/01/polar-bear-prowling-small-labrador-town-cut-off-by-storm-had-authorities-on-high-alert/https://polarbearscience.com/wp-content/uploads/2019/03/newfoundland-ne-daily-stage-of-development-2019-feb-28-ice-warning.gifNewfoundland NE daily stage of development 2019 Feb 28 ice warninghttps://polarbearscience.com/wp-content/uploads/2019/03/newfoundland-ne-daily-stage-of-development-2019-feb-23-ice-warning.gifNewfoundland NE daily stage of development 2019 Feb 23 ice warninghttps://polarbearscience.com/wp-content/uploads/2019/03/newfoundland-ne-daily-stage-of-development-2019-feb-25-ice-warning.gifNewfoundland NE daily stage of development 2019 Feb 25 ice warninghttps://polarbearscience.com/wp-content/uploads/2019/03/st-lewis-and-charlottetown-labrador-pb-sighting-and-reaction-28-feb-2019.jpgSt Lewis and Charlottetown Labrador PB sighting and reaction 28 Feb 2019St. Lewis is located at the red marker; Charlottetown is the third town to the north. Both are just north of the Strait of Belle Isle that separates Labrador from the island of Newfoundland (seen at centre bottom).https://polarbearscience.com/wp-content/uploads/2019/03/polar-bear-black-tickle_edwin-clark-submitted-to-cbc-no-date.jpgpolar-bear-black-tickle_Edwin Clark submitted to CBC no dateThis bear visited Black Tickle in Labrador a few years back. Edwin Clark photo.2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/03/12/polar-bear-habitat-update-abundant-sea-ice-across-the-arctic-even-in-the-barents-sea/https://polarbearscience.com/wp-content/uploads/2019/03/walking-bear-shutterstock_329214941_web-size.jpgWalking bear shutterstock_329214941_web sizehttps://polarbearscience.com/wp-content/uploads/2019/03/black-tickle-bears-again-15-march-2017-headline-vocm.jpgBlack Tickle bears again 15 March 2017 headline VOCMhttps://polarbearscience.com/wp-content/uploads/2019/03/gulf-st-lawrence-north-shore-pb-visit-22-march-2017_cbc-headline.jpgGulf St Lawrence North shore PB visit 22 March 2017_CBC headlinehttps://polarbearscience.com/wp-content/uploads/2019/03/east-coast-weekly-concentration-2019-march-4.gifEast Coast weekly concentration 2019 March 4https://polarbearscience.com/wp-content/uploads/2019/03/east-coast-weekly-departure-from-normal-2019-march-4.gifEast Coast weekly departure from normal 2019 March 4https://polarbearscience.com/wp-content/uploads/2019/03/cabot-strait-sea-ice-8-march-2019-ntv-video-screencap.jpgCabot Strait sea ice 8 March 2019 NTV video screencapFrom 8 March story from NTV.https://polarbearscience.com/wp-content/uploads/2019/03/svalbard-ice-extent-2019-march-12_nis.pngSvalbard ice extent 2019 March 12_NIShttps://polarbearscience.com/wp-content/uploads/2019/03/sea-ice-at-barents-and-kara-seas_11-march-2019-ice-at-bear-is-e1552412458770.jpgSea ice at Barents and Kara Seas_11 March 2019 ice at Bear IsSea ice at East Greenland, Barents, and Kara Seas at 11 March 2019. NSIDC.https://polarbearscience.com/wp-content/uploads/2019/03/sea-ice-from-bering-to-barents-seas_11-march-2019-ice-at-bear-is.jpgSea ice from Bering to Barents Seas_11 March 2019 ice at Bear IsArctic sea ice fromhttps://polarbearscience.com/wp-content/uploads/2019/03/masie_all_zoom_4km-2019-march-11.pngmasie_all_zoom_4km 2019 March 112024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/03/18/its-back-bering-sea-polar-bear-habitat-has-recovered-from-a-low-earlier-this-month/https://polarbearscience.com/wp-content/uploads/2019/03/bering_sea_location-wikipedia.pngBering_Sea_Location wikipediaBering Sea courtesy Wikipedia. Light blue areas are shallow, continental shelf areas (not sea ice).https://polarbearscience.com/wp-content/uploads/2019/03/chukchi-sea-polar-bear-arctic_early-august-2018_a-khan-nsidc-small.jpgChukchi Sea polar bear Arctic_early August 2018_A Khan NSIDC smallhttps://polarbearscience.com/wp-content/uploads/2019/03/chukchi-male-1240-lbs-durner-2008_label.jpgChukchi male 1240 lbs Durner 2008_labelhttps://polarbearscience.com/wp-content/uploads/2019/03/masie_all_zoom_4km-2019-feb-18-e1552931461205.pngmasie_all_zoom_4km 2019 Feb 1818 February 2019https://polarbearscience.com/wp-content/uploads/2019/03/sea-ice-at-bering-chukchi-seas_17-march-2019-e1552931259105.jpgSea ice at Bering Chukchi Seas_17 March 201917 March 2019https://polarbearscience.com/wp-content/uploads/2019/03/sea-ice-from-bering-to-barents-seas_5-march-2019-ice-at-bear-is-e1552931076163.jpgSea ice Bering Sea at_5 March 20195 March 2019https://polarbearscience.com/wp-content/uploads/2019/03/r12_bering_sea_ts_4km_png_1_200c397600_pixels-2-marked-end-feb.jpgr12_Bering_Sea_ts_4km_png_1_200×600_pixels-2 MARKED END FEBhttps://polarbearscience.com/wp-content/uploads/2019/03/polar_bear-bering-sea-2007-usfws-lg.jpgPolar_bear Bering Sea 2007 USFWS lgPolar bear on Bering Sea ice 2007 USFWShttps://polarbearscience.com/wp-content/uploads/2019/03/tagging-ribbon-seals-bering-sea-april-2014_photo-by-brett-mcclintock_nmmlfig2_pep.jpgTagging ribbon seals Bering Sea April 2014_Photo by Brett McClintock_NMMLfig2_PEPhttps://polarbearscience.com/wp-content/uploads/2019/03/pancake-ice-in-the-bering-sea-from-the-noaa-ship-oscar-dyson_02.jpgPancake ice in the Bering Sea from the NOAA Ship Oscar Dyson_022024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/03/26/latest-global-polar-bear-abundance-best-guess-estimate-is-39000-26000-58000/https://polarbearscience.com/wp-content/uploads/2019/03/polarbear1_wikimedia_andreas-weith-photo-svalbard-sm.jpgPolarbear1_wikimedia_Andreas Weith photo Svalbard smhttps://polarbearscience.com/wp-content/uploads/2019/03/population-size-estimate-graph-chapter-10-e1553617271572.jpgPopulation size estimate graph chapter 10Global polar bear population size estimates to 2018. From Chapter 10 of The Polar Bear Catastrophe That Never Happened (Crockford 2019).https://polarbearscience.com/wp-content/uploads/2019/03/usgs-polar-bear_ecoregions_icedrift.jpgUSGS polar bear_ecoregions_icedrift2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/03/27/full-podcast-of-tv-interview-with-andrew-bolt-in-australia-talking-about-polar-bears/https://polarbearscience.com/wp-content/uploads/2019/03/bolt-report-interview-intro_26-march-2019.jpgBolt report interview intro_26 March 20192024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/04/02/ok-in-the-80s-but-not-now-seeing-more-polar-bears-means-there-are-more-bears/https://polarbearscience.com/wp-content/uploads/2019/04/rigolet-location_google-maps.jpgRigolet location_Google mapshttps://polarbearscience.com/wp-content/uploads/2019/03/polar-bear-cape-dorset-baffin-5-may-2018-in-the-street.jpgPolar bear Cape Dorset Baffin 5 May 2018 in the street2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/04/07/attenboroughs-tragedy-porn-of-walruses-plunging-to-their-deaths-because-of-climate-change-is-contrived-nonsense/https://polarbearscience.com/wp-content/uploads/2019/04/walrus-plunging-cliff_the-sun-headline-5-april-2019-e1566267742128.jpgWalrus plunging cliff_The Sun headline 5 April 2019 croppedhttps://polarbearscience.com/wp-content/uploads/2019/04/walrus-inside_cape_kozhevnikov_siberian-times.jpgWalrus inside_cape_kozhevnikov_Siberian TimesWalrus haulout at Cape Kozhevnikov near the village of Ryrkaipiy2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/04/14/our-planet-film-crew-is-still-lying-about-walrus-cliff-deaths-heres-how-we-know/https://polarbearscience.com/wp-content/uploads/2019/04/montford-15-april-2019_filming-the-walruses_fig-5-from-where-was-the-camera_walrusonshore-1024x578.pngMontford 15 April 2019_Filming the walruses_fig 5 from where was the camera_walrusonshore-1024x578https://polarbearscience.com/wp-content/uploads/2019/04/kozhevnikova-cape-with-ryrkaypiy-aerial-marked_montford-15-april-2019-story.pngKozhevnikova Cape with Ryrkaypiy aerial marked_Montford 15 April 2019 storyhttps://polarbearscience.com/wp-content/uploads/2019/04/19_descent-of-walrus-from-the-cliff_21-sep-2017_at-the-beach-where-photographer-was-on-the-19th_-3148202_original.jpg19_Descent of walrus from the cliff_21 Sep 2017_at the beach where photographer was on the 19th_ 3148202_originalWalruses descending safely to the beach from the cliff. Photo by Y. Basov, 21 September 2017.https://polarbearscience.com/wp-content/uploads/2019/04/22_two-walruses-who-have-fallen-from-the-cliff-and-dying-in-agony_17-sep-2017_3145384_original.jpg22_two walruses who have fallen from the cliff and dying in agony_17 Sep 2017_3145384_originalFeaturing two walruses already dying from falls off the cliffs on 17 September. Photo by Y. Basov, 17 September 2017.https://polarbearscience.com/wp-content/uploads/2019/04/chukotka-walrus-haulouts-map-with-inset.jpgChukotka walrus haulouts map with insethttps://polarbearscience.com/wp-content/uploads/2019/04/walruses2-1024x683_usgs.jpgwalruses2-1024x683_USGS2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/04/18/bogus-greenpeace-claim-that-lost-russian-polar-bear-is-evidence-of-climate-change/https://polarbearscience.com/wp-content/uploads/2019/04/kamchatka-lost-bear_siberian-times-map.jpgPolar bear visits KamchatkaBear's routehttps://polarbearscience.com/wp-content/uploads/2019/04/exhausted-polar-bear-kamchatka_guardian-headline_18-april-2019.jpgExhausted polar bear Kamchatka_Guardian headline_18 April 2019Headline from The Guardian 18 April 20192024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/04/23/even-with-inuit-lives-at-stake-polar-bear-specialists-make-unsupported-claims/https://polarbearscience.com/wp-content/uploads/2019/04/macleans-to-kill-a-polar-bear-headline-21-april-2019.jpgMacleans to kill a polar bear headline 21 April 2019https://polarbearscience.com/wp-content/uploads/2019/04/foxe-basin-fatal-attack-telegraph-headline-30-aug-2018.jpgFoxe Basin Fatal attack Telegraph headline 30 Aug 20182024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/04/24/my-opinion-piece-in-the-financial-post-on-netflix-splattering-walrus-film-footage/https://polarbearscience.com/wp-content/uploads/2019/04/netflix-is-lying_fp-headline-24-april-2019.jpgNetflix is lying_FP headline 24 April 2019https://polarbearscience.com/wp-content/uploads/2019/04/walrus-june-2012-sonsthagen_usgs.jpegWalrus June 2012 Sonsthagen_USGS2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/04/27/in-case-you-missed-it-the-text-of-my-financial-post-essay-on-netflix-false-walrus-message/2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/05/04/stop-lying-to-children-about-dying-polar-bears-as-a-way-to-achieve-action-on-climate-change/https://polarbearscience.com/wp-content/uploads/2019/05/cbc-news-headline-sept-7-2007.jpgCBC News headline Sept 7 2007https://polarbearscience.com/wp-content/uploads/2019/05/female-with-cubs-beaufort_usfws-credit-2007-w-label_sm.jpgFemale with cubs Beaufort_USFWS credit 2007 w label_smhttps://polarbearscience.com/wp-content/uploads/2019/05/fm-pg-34.jpgFM pg 34https://polarbearscience.com/wp-content/uploads/2019/05/sea-ice-extent-2019-april-average_nsidc.pngSea ice extent 2019 April average_NSIDChttps://polarbearscience.com/wp-content/uploads/2019/05/david-rudolf-daugher-taught-falsehoods-about-species-extinction_26-april-2019.jpgDavid Rudolf daugher taught falsehoods about species extinction_26 April 2019https://polarbearscience.com/wp-content/uploads/2019/05/mother-with-cubs-russia_shutterstock_71694292_web-size.jpgMother with cubs Russia_shutterstock_71694292_web sizehttps://polarbearscience.com/wp-content/uploads/2019/04/amnh-explore-number-of-polar-bears-declining.jpgAMNH explore number of polar bears declininghttps://polarbearscience.com/wp-content/uploads/2019/04/polar-bears-in-a-warming-world-pbi-2013-slide-16.jpgPolar bears in a warming world PBI 2013 slide 16https://polarbearscience.com/wp-content/uploads/2019/04/polar-bears-in-a-warming-world-pbi-2013-slide-18.jpgPolar bears in a warming world PBI 2013 slide 18https://polarbearscience.com/wp-content/uploads/2019/04/polar-bears-in-a-warming-world-pbi-2013-slide-21.jpgPolar bears in a warming world PBI 2013 slide 212024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/05/06/more-starving-polar-bear-nonsense-from-national-geographic-a-better-video-to-watch/https://polarbearscience.com/wp-content/uploads/2019/05/bear-hunting-beluga-seal-river-sept-2017-quent-plett-photo.jpgBear hunting beluga Seal River Sept 2017 Quent Plett photohttps://polarbearscience.com/wp-content/uploads/2019/05/seal-river-lodge-location-2017.jpgSeal River Lodge location 2017https://polarbearscience.com/wp-content/uploads/2019/05/polar-bear-hunting-beluga_nat-geo-11-april-hostile-planet-clip-starving.jpgPolar bear hunting beluga_Nat Geo 11 April Hostile Planet clip starving2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/05/13/polar-bear-habitat-update-for-early-spring-shows-no-influence-of-a-co2-control-knob/https://polarbearscience.com/wp-content/uploads/2019/05/hudson-bay-ice-stage-of-development-weekly-at-9-may-2016.gifHudson Bay ice stage of development weekly at 9 May 2016https://polarbearscience.com/wp-content/uploads/2019/05/sea-ice-extent-canada-2016-may-11-cis.gifSea ice extent Canada 2016 May 11 CIShttps://polarbearscience.com/wp-content/uploads/2019/05/sea-ice-canada-2019-may-11.gifSea ice Canada 2019 May 11https://polarbearscience.com/wp-content/uploads/2019/05/hudson-bay-weekly-stage-of-development-2019-may-6.gifHudson Bay weekly stage of development 2019 May 6https://polarbearscience.com/wp-content/uploads/2019/05/r02_chukchi_sea_ts_4km-at-2019-may-11.pngr02_Chukchi_Sea_ts_4km at 2019 May 11https://polarbearscience.com/wp-content/uploads/2019/05/sea-ice-bering-sea-at-day-131_11-may-2019-e1557726361134.jpgSea ice Bering Sea at day 131_11 May 201911 May 2019 Chukchi Sea, NSIDC MASIEhttps://polarbearscience.com/wp-content/uploads/2019/05/sea-ice-bering-to-barents-seas-at-day-131_11-may-2006_12-point-4mkm2_archive.jpgSea ice Bering to Barents Seas at day 131_11 May 2006_12 point 4mkm2_archiveBering Sea to Barents Sea at 11 May 2006. NSIDC MASIE.https://polarbearscience.com/wp-content/uploads/2019/05/sea-ice-arctic-at-day-131_11-may-2006_12-point-4mkm2_archive-e1557722637681.jpgSea ice Arctic at day 131_11 May 2006_12 point 4mkm2_archivehttps://polarbearscience.com/wp-content/uploads/2019/05/masie_all_zoom_v01_2015130_4km.pngmasie_all_zoom_v01_2015130_4kmhttps://polarbearscience.com/wp-content/uploads/2019/05/masie_all_zoom_4km-2016-may-14.pngmasie_all_zoom_4km 2016 May 142024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/05/17/video-expose-of-the-groundless-netflix-bid-to-elevate-walrus-to-climate-change-icon/https://polarbearscience.com/wp-content/uploads/2019/05/video-title-screen.jpgVideo title screen2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/05/23/zoos-abrogate-their-position-of-trust-by-misleading-the-public-about-polar-bears/https://polarbearscience.com/wp-content/uploads/2019/04/ctv-news-on-pb-sightings-labrador-as-climate-change-warning.jpgCTV News on pb sightings Labrador as climate change warning2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/05/29/photographers-claims-that-inuit-hunting-is-unsustainable-are-not-supported/https://polarbearscience.com/wp-content/uploads/2019/05/cover-photo-ole-j-liodden-small-web.jpgCover photo Ole J Liodden small webhttps://polarbearscience.com/wp-content/uploads/2019/05/eaten-cover-image_sm-e1559069004621.jpgIsbjørnPolar Bear (Ursus maritimus) walking on the drifting ice in Spitsbergen, Svalbard. Ole J. Liodden photo.2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/05/31/polar-bear-habitat-update-open-water-primarily-due-to-winds-pushing-pack-ice/https://polarbearscience.com/wp-content/uploads/2019/05/masie_all_zoom_4km-2016-may-31.pngmasie_all_zoom_4km 2016 May 31https://polarbearscience.com/wp-content/uploads/2019/05/masie_all_zoom_v01_2015151_4km.pngmasie_all_zoom_v01_2015151_4kmhttps://polarbearscience.com/wp-content/uploads/2019/05/sea-ice-global-at-30-may-2006-masie-day-150_11.5mkm2.jpgSea ice global at 30 May 2006 MASIE day 150_11.5mkm2https://polarbearscience.com/wp-content/uploads/2019/05/masie_all_zoom_4km-2019-may-30.pngmasie_all_zoom_4km 2019 May 30https://polarbearscience.com/wp-content/uploads/2019/05/sea-ice-canada-2015-may-31_cis.gifSea ice Canada 2015 May 31_CIShttps://polarbearscience.com/wp-content/uploads/2019/05/sea-ice-canada-2018-may-31.gifSea ice Canada 2018 May 31https://polarbearscience.com/wp-content/uploads/2019/05/sea-ice-canada-2017-may-29.gifSea ice Canada 2017 May 29https://polarbearscience.com/wp-content/uploads/2019/05/sea-ice-extent-canada-2016-may-31-cis.gifSea ice extent Canada 2016 May 31 CIShttps://polarbearscience.com/wp-content/uploads/2019/05/sea-ice-canada-2019-may-31.gifSea ice Canada 2019 May 31https://polarbearscience.com/wp-content/uploads/2019/05/polar_bear-bering-sea-2007-usfws-lg.jpgPolar_bear Bering Sea 2007 USFWS lg2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/06/03/activists-who-use-polar-bears-as-a-symbol-of-climate-change-are-out-of-touch-with-reality/https://polarbearscience.com/wp-content/uploads/2019/06/bbc-message-to-trump-headline_3-june-2019.jpgBBC message to Trump headline_3 June 2019https://polarbearscience.com/wp-content/uploads/2019/06/usgs_pbear_ecoregions_sm.jpgUSGS_pbear_ecoregions_smIn 2007, US government biologists predicted that when summer sea ice declined dramatically by 2050, all of the polar bears in the green and purple regions would be wiped out, leaving only about 8,100 remaining.https://polarbearscience.com/wp-content/uploads/2019/06/arctic_september_sea_ice_extent_nsidc_stroeve_wikimedia_to-sept-2007.pngArctic_September_Sea_Ice_Extent_NSIDC_Stroeve_Wikimedia_to Sept 2007Simplified predictions vs. observations to 2007 provided by Stroeve et al. 2007 (courtesy Wikimedia).https://polarbearscience.com/wp-content/uploads/2019/06/sea-ice-extent_2012_sept-low_reduced-by-more-than-50pc_nasa-ice-imagery.jpgSea ice extent_2012_Sept low_reduced by more than 50pc_NASA Ice Imageryhttps://polarbearscience.com/wp-content/uploads/2019/06/standing-bear_shutterstock_751891378_cropped-web-sized-1-e1559600104420.jpgStanding bear_shutterstock_751891378_cropped web sizedhttps://polarbearscience.com/wp-content/uploads/2019/06/chapter-1-figure-sm-e1559592005660.jpgChapter 1 figure SM2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/06/05/today-talking-with-glenn-beck-later-this-morning-about-the-netflix-walrus-fiasco/https://polarbearscience.com/wp-content/uploads/2019/06/beck-interview-blog-post-header-5-june-2019-walrus-fiasco.jpgBeck interview blog post header 5 June 2019 Walrus fiasco2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/06/16/polar-bear-habitat-update-at-mid-june-more-than-enough-for-survival/https://polarbearscience.com/wp-content/uploads/2019/06/book-graphic-3-with-bear-for-promotion.jpgBook graphic 3 with bear for promotionhttps://polarbearscience.com/wp-content/uploads/2019/06/svalbard-ice-extent-2019-june-14-graph_nis.pngSvalbard ice extent 2019 June 14 graph_NIShttps://polarbearscience.com/wp-content/uploads/2019/06/hudson-bay-weekly-stage-of-development-2010_june-14.gifHudson Bay weekly stage of development 2010_June 14https://polarbearscience.com/wp-content/uploads/2019/06/sea-ice-extent-2018-and-2012-vs-2019-at-13-june_nsidc-interactive.jpgSea ice extent 2018 and 2012 vs 2019 at 13 June_NSIDC interactivehttps://polarbearscience.com/wp-content/uploads/2019/06/masie_all_zoom_4km-2017-june-13-1.pngmasie_all_zoom_4km 2017 June 13https://polarbearscience.com/wp-content/uploads/2019/06/hudson-bay-weekly-ice-stage-of-development-2017-june-12.gifHudson Bay weekly ice stage of development 2017 June 12https://polarbearscience.com/wp-content/uploads/2019/06/sea-ice-extent-canada-2017-june-14.gifSea ice extent Canada 2017 June 14https://polarbearscience.com/wp-content/uploads/2019/06/masie_all_zoom_4km-2017-june-13.pngmasie_all_zoom_4km 2017 June 13https://polarbearscience.com/wp-content/uploads/2019/06/hudson-bay-weekly-stage-of-development-2018-june-11.gifHudson Bay weekly stage of development 2018 June 11https://polarbearscience.com/wp-content/uploads/2019/06/sea-ice-canada-2019-jun-14.gifSea ice Canada 2019 Jun 142024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/06/17/skinny-polar-bear-far-inland-in-siberia-not-due-to-sea-ice-loss-but-a-rare-normal-event/https://polarbearscience.com/wp-content/uploads/2019/06/norilsk-starving-bear-17-june-2019-siberian-times-map.jpgNorilsk starving bear 17 June 2019 Siberian Times maphttps://polarbearscience.com/wp-content/uploads/2019/06/norilsk-starving-bear-17-june-2019-siberian-times-photo.jpgNorilsk starving bear 17 June 2019 Siberian Times photo2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/06/26/now-20-years-with-no-trend-in-ice-breakup-dates-for-western-hudson-bay-polar-bears/https://polarbearscience.com/wp-content/uploads/2019/06/hudson-bay-weekly-stage-of-development-2019-june-24.gifHudson Bay weekly stage of development 2019 June 24https://polarbearscience.com/wp-content/uploads/2019/06/derocher-2019-whb-collared-females-25-june-all-bears-still-on-the-ice.jpgDerocher 2019 WHB collared females 25 June all bears still on the ice2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2019/06/29/historic-hot-spells-in-churchill-polar-bear-capital-of-the-world-in-late-june-early-july/https://polarbearscience.com/wp-content/uploads/2019/06/churchill-weather-conditions-and-7-day-forecast-at-28-june-2019-11-pm-ec-1.jpgChurchill weather conditions and 7 day forecast at 28 June 2019 11 pm EChttps://polarbearscience.com/wp-content/uploads/2019/06/churchill-weather-averages-and-extremes-2019-july-4-ec-yesterday-temp-is-the-28th.jpgChurchill weather averages and extremes 2019 July 4 EC yesterday temp is the 28thhttps://polarbearscience.com/wp-content/uploads/2019/06/churchill-weather-averages-and-extremes-2019-july-3-ec-vs.-1976-yesterday-temp-is-the-27th-2019.jpgChurchill weather averages and extremes 2019 July 3 EC vs. 1976 yesterday temp is the 27th 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archive2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2020/03/03/baffin-bay-polar-bears-are-abundant-and-the-population-is-stable-study-scientist-admits/2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2020/03/18/awesome-coronovirus-memes-and-correcting-false-facts/https://polarbearscience.com/wp-content/uploads/2020/03/corona-meme-grumpy-from-donna.jpgCorona meme grumpy from Donna2024-10-29T14:50:06+00:00monthlyhttps://polarbearscience.com/2018/01/02/harvey-et-al-attack-article-mum-on-real-selection-process-for-polar-bear-papers-used-in-their-analysis/https://polarbearscience.com/wp-content/uploads/2018/01/bechshoft-et-al-2013-number-34-web-of-science.jpgBechshoft et al 2013 number 34 Web of Sciencehttps://polarbearscience.com/wp-content/uploads/2018/01/meek-2011-us-pb-debate-in-web-of-science.jpgMeek 2011 US pb debate in Web of 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Sciencehttps://polarbearscience.com/wp-content/uploads/2018/01/ferguson-et-al-2017-whb-ringed-seals-web-of-science.jpgFerguson et al. 2017 WHB ringed seals Web of Sciencehttps://polarbearscience.com/wp-content/uploads/2018/01/iacozza-et-al-2014-expanded-entry-in-web-of-science.jpgIacozza et al 2014 expanded entry in Web of Science2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/01/04/failed-amstrup-polar-bear-predictions-have-climate-change-community-in-a-panic/https://polarbearscience.com/wp-content/uploads/2018/01/mann_tantrum-that-saved-the-world-dec-2017-cropped.jpgMann_tantrum that saved the world Dec 2017 croppedhttps://polarbearscience.com/wp-content/uploads/2018/01/stroeve-2017-we-are-all-ice-dependent-species.jpgStroeve 2017 we are all ice dependent specieshttps://polarbearscience.com/wp-content/uploads/2018/01/wwf-why-pbs-are-important-2017.jpgWWF why pbs are important 2017https://polarbearscience.com/wp-content/uploads/2018/01/durner-et-al-2009-fig-12a-marked.jpgDurner et al. 2009 Fig 12a markedDurner et al. 2009, Fig. 12a Ecological Monographs 79(1)https://polarbearscience.com/wp-content/uploads/2018/01/acia-2004-fig-6-8_5-models-sea-ice-predictions.jpgACIA 2004 Fig 6.8_5 models sea ice predictionshttps://polarbearscience.com/wp-content/uploads/2018/01/amstrup-et-al-2008-plate-8-e1515041773272.pngAmstrup et al 2008 Plate 8Figure 3. From Amstrup, Marcot & Douglas 2008, caption from original (as per American Geophysical Union): Area of sea ice extent (>50% ice concentration) on 16 September 2007, compared to 10 Intergovernmental Panel of Climate Change Fourth Assessment Report GCM mid century projections of ice extent for September 2045–2054 (mean ±1 standard deviation, n = 10 years). Ice extent for 16 September 2007 was calculated using near-real-time ice concentration estimates derived with the NASA Team algorithm and distributed by the National Snow and Ice Data Center (http://nsidc.org). Note that five of the models we used in our analyses project more perennial sea ice at mid century than was observed in 2007. This suggests our projections for the future status of polar bears may be conservative. Image credit: American Geophysical Union.https://polarbearscience.com/wp-content/uploads/2018/01/wwf-icons-of-the-arctic.jpgWWF icons of the Arctichttps://polarbearscience.com/wp-content/uploads/2018/01/what-global-warming-looks-like_observations-from-the-arctic.jpgWhat global warming looks like_observations from the ArcticOceanic Society story late 2016 or early 2017. Original here.https://polarbearscience.com/wp-content/uploads/2018/01/time-magazine-cover_-arctic-meltdown-september-2000.jpgTIME Magazine Cover_ Arctic Meltdown September 2000https://polarbearscience.com/wp-content/uploads/2018/01/national-post-on-gore-and-stranded-pb-photo_23-march-2007.jpgNational Post on Gore and stranded pb photo_23 March 20072024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/01/07/did-harvey-et-al-authors-aim-to-help-google-censor-polar-bear-information/https://polarbearscience.com/wp-content/uploads/2018/01/canadian-wildlife-federation_google-ad_7-jan-2018.jpgCanadian Wildlife Federation_Google ad_7 Jan 2018https://polarbearscience.com/wp-content/uploads/2018/01/wwf-google-ad_7-jan-2018.jpgWWF Google ad_7 Jan 2018https://polarbearscience.com/wp-content/uploads/2018/01/pbi-google-ad_7-jan-2018-why-are-they-threatened.jpgPBI Google ad_7 Jan 2018 why are they threatenedhttps://polarbearscience.com/wp-content/uploads/2018/01/pbi-google-ad_7-jan-2018-learn-about-polar-bears.jpgPBI Google ad_7 Jan 2018 learn about polar bears2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/01/09/franz-josef-land-is-a-sea-ice-refugium-for-most-pregnant-barents-sea-polar-bears/https://polarbearscience.com/wp-content/uploads/2018/01/svalbard-polar-bear_aars-august-2015-np058930_press-release.jpgSvalbard polar bear_Aars August 2015-NP058930_press releasehttps://polarbearscience.com/wp-content/uploads/2018/01/svalbard-polar-bear-spring-dens-and-fall-sea-ice-cover-1979-2016_npi.jpgSvalbard polar bear spring dens and fall sea ice cover 1979-2016_NPIhttps://polarbearscience.com/wp-content/uploads/2018/01/franz_josef_land_location_wikipedia.pngFranz_Josef_Land_location_wikipediahttps://polarbearscience.com/wp-content/uploads/2018/01/aars-2015-jan-14-presentation_slide_where-do-svalbard-bears-den-in-low-ice-years.jpgAars 2015 Jan 14 presentation_slide_where do Svalbard bears den in low ice yearshttps://polarbearscience.com/wp-content/uploads/2018/01/aars-et-a-2017-figure-11.jpgAars et a. 2017 Figure 1Figure 1 from Aars et al. 2017. Locations of polar bears found during August 2015 survey, after a good ice years when bears were able to den in tradiitional areas on Svalbardhttps://polarbearscience.com/wp-content/uploads/2018/01/descamps-et-al-2017-table-1-ringed-seals.jpgDescamps et al. 2017 Table 1 ringed sealshttps://polarbearscience.com/wp-content/uploads/2018/01/descamps-et-al-2017-table-1-polar-bears-part-1.jpgDescamps et al. 2017 Table 1 polar bears part 1https://polarbearscience.com/wp-content/uploads/2018/01/barents-sea-ice-2012_november-19_nis-from-archive.jpgBarents Sea ice 2012_November 19_NIS from archivehttps://polarbearscience.com/wp-content/uploads/2018/01/barents-sea-ice-2012_sept-18_nis-from-archive.jpgBarents Sea ice 2012_Sept 18_NIS from archivehttps://polarbearscience.com/wp-content/uploads/2018/01/barents-sea-ice-extent-2017-sept-24_nis.pngBarents Sea ice extent 2017 Sept 24_NIS2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/01/12/consensus-polar-bear-experts-dealt-with-criticism-differently-in-2007/https://polarbearscience.com/wp-content/uploads/2018/01/dealing-with-criticism-2007-vs-2017.jpgDealing with criticism 2007 vs 20172024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/01/22/blog-uses-my-polar-bear-info-but-no-link-to-pbs-means-they-are-science-based/https://polarbearscience.com/wp-content/uploads/2018/01/churchill-polar-bears-dot-org_header.jpgChurchill Polar Bears dot org_headerhttps://polarbearscience.com/wp-content/uploads/2018/01/pbi-wayback-machine-captured-april-10-2016.jpgPBI wayback machine captured April 10 2016https://polarbearscience.com/wp-content/uploads/2018/01/churchill-polar-bears-blog-headline-17-feb-2017.jpgChurchill polar bears blog headline 17 Feb 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smhttps://polarbearscience.com/wp-content/uploads/2018/02/beer-clipart-3706-free-e1517597523543.jpegBeer clipart-3706-free2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/02/09/new-scientist-prints-a-more-reasoned-polar-bear-article-but-myths-persist/https://polarbearscience.com/wp-content/uploads/2018/02/new-scientist-headline_10-feb-2018-issue-3164-photo-e1518214159546.jpgNew Scientist headline_10 Feb 2018 issue 3164 photohttps://polarbearscience.com/wp-content/uploads/2018/02/new-scientist-headline_10-feb-2018-issue-3164-marked.jpgNew Scientist headline_10 Feb 2018 issue 3164 marked2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/02/21/russia-confirms-chukchi-sea-polar-bears-not-at-risk-from-climate-change-or-poaching/https://polarbearscience.com/wp-content/uploads/2018/02/chukchi-sea-advance-and-retreat-to-2015_nsidc.pngChukchi Sea advance and retreat to 2015_NSIDChttps://polarbearscience.com/wp-content/uploads/2018/02/rode-and-regehr-2010_chukchi_report2010_fig1_triplets_labelled.jpgRode and Regehr 2010_Chukchi_report2010_Fig1_triplets_labelledhttps://polarbearscience.com/wp-content/uploads/2018/02/chukchi-male-1240-lbs-durner-2008_label.jpgChukchi male 1240 lbs Durner 2008_label2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/02/23/coffee-house-discussion-about-polar-bear-science-conservation-in-toronto-on-tuesday/https://polarbearscience.com/wp-content/uploads/2018/02/grounds-for-thought-at-greenbeanery_feb-27-2018-e1519337214899.jpgGrounds for Thought at GreenBeanery_Feb 27 20182024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/02/25/histrionics-over-arctic-temperatures-sea-ice-extent-implications-for-polar-bears/https://polarbearscience.com/wp-content/uploads/2018/02/ribbon-seal-tagging_bering-sea_nmml_noaa_april-2014.jpgRibbon seal tagging_Bering Sea_NMML_NOAA_April 2014NOAA biologists tagging ribbon seal pups in the Bering Sea, April 2014.https://polarbearscience.com/wp-content/uploads/2018/02/east-greenland-scorsby-sound-march-2011-on-kap-tobin_rune-dietz_press-photo.jpgEast Greenland Scorsby Sound March 2011 on Kap Tobin_Rune Dietz_press photoScorsby Sound, East Greenland bear in March 2011. Rune Dietz, press photo.https://polarbearscience.com/wp-content/uploads/2018/02/chukchi_sea-april-2009_open-leads-wikipedia-e1519614078787.jpgChukchi_Sea April 2009_open leads wikipediahttps://polarbearscience.com/wp-content/uploads/2018/02/r12_bering_sea_ts_4km-at-2018-feb-24.pngr12_Bering_Sea_ts_4km at 2018 Feb 24https://polarbearscience.com/wp-content/uploads/2018/02/masie_all_r11_v01_2017075_4km.pngmasie_all_r11_v01_2017075_4kmhttps://polarbearscience.com/wp-content/uploads/2018/02/masie_all_r11_v01_2017055_4km.pngmasie_all_r11_v01_2017055_4kmhttps://polarbearscience.com/wp-content/uploads/2018/02/masie_all_r11_v01_2018055_4km.pngmasie_all_r11_v01_2018055_4kmhttps://polarbearscience.com/wp-content/uploads/2018/02/masie_all_r11_v01_2012100_4km.pngmasie_all_r11_v01_2012100_4kmhttps://polarbearscience.com/wp-content/uploads/2018/02/masie_all_r11_v01_2012055_4km.pngmasie_all_r11_v01_2012055_4kmhttps://polarbearscience.com/wp-content/uploads/2018/02/barents-sea-ice-extent-2018-feb-22_nis1.pngBarents Sea ice extent 2018 Feb 22_NIS2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/03/06/polar-bear-sighted-onshore-in-northern-newfoundland-at-st-lunaire-griquet/https://polarbearscience.com/wp-content/uploads/2018/03/sea-ice-canada-2018-march-6.gifSea ice Canada 2018 March 6https://polarbearscience.com/wp-content/uploads/2018/03/sea-ice-canada-2018-march-3.gifSea ice Canada 2018 March 3https://polarbearscience.com/wp-content/uploads/2018/03/newfoundland-daily-sea-ice-stage-of-development-2018-march-5-ice-warning.gifNewfoundland daily sea ice stage of development 2018 March 5 ice warninghttps://polarbearscience.com/wp-content/uploads/2018/03/saint-lunaire-griquet-newfoundland-location_google-maps.jpgSaint Lunaire Griquet Newfoundland location_Google mapshttps://polarbearscience.com/wp-content/uploads/2018/03/saint-lunaire-griquet-newfoundland-polar-bear_vocm-news_6-march-2018.jpgSaint Lunaire Griquet Newfoundland polar bear_VOCM news_6 March 20182024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/03/06/winter-polar-bear-sea-ice-habitat-by-early-march-2018-varied-little-from-2006-or-2017/https://polarbearscience.com/wp-content/uploads/2018/03/sea-ice-2018-february-average_nsidc-graph.pngSea ice 2018 February average_NSIDC graphhttps://polarbearscience.com/wp-content/uploads/2018/03/sea-ice-extent-2006-and-2018-nsidc-interactive-graph-at-march-5-2018.jpgSea ice extent 2006 and 2018 NSIDC interactive graph at March 5 2018https://polarbearscience.com/wp-content/uploads/2018/03/sea-ice-extent-2017-and-2018-nsidc-interactive-graph-at-march-5-2018.jpgSea ice extent 2017 and 2018 NSIDC interactive graph at March 5 2018https://polarbearscience.com/wp-content/uploads/2018/03/masie_all_r00_v01_2017064_4km-e1520356826110.pngmasie_all_r00_v01_2017064_4kmhttps://polarbearscience.com/wp-content/uploads/2018/03/masie_all_r00_v01_2006064_4km_march-5_14-point-5-mkm2-e1520356594427.pngmasie_all_r00_v01_2006064_4km_March 5_14 point 5 mkm2https://polarbearscience.com/wp-content/uploads/2018/03/masie_all_zoom_4km-2018-march-5.pngmasie_all_zoom_4km 2018 March 52024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/03/07/polar-bear-ashore-in-puvirnituq-ne-hudson-bay-over-the-weekend/https://polarbearscience.com/wp-content/uploads/2018/03/singepolarbearlarge2_usfws.jpgsingepolarbearlarge2_USFWShttps://polarbearscience.com/wp-content/uploads/2018/03/puvirnituq-quebec_location_google-maps.jpgPuvirnituq Quebec_location_Google mapshttps://polarbearscience.com/wp-content/uploads/2018/03/puvirnituq_tweet-polar-bear_7-march-2018_translated-e1520445014669.jpgPuvirnituq_tweet polar bear_7 March 2018_translated2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/03/09/more-davis-strait-polar-bears-onshore-in-the-last-two-days/https://polarbearscience.com/wp-content/uploads/2018/03/sea-ice-canada-2018-march-8.gifSea ice Canada 2018 March 8https://polarbearscience.com/wp-content/uploads/2018/03/newfoundland-daily-sea-ice-stage-of-development-2018-march-8-ice-warning.gifNewfoundland daily sea ice stage of development 2018 March 8 ice warninghttps://polarbearscience.com/wp-content/uploads/2018/03/elliston-bonavista-peninsula-newfoundland-location-google-maps.jpgElliston Bonavista Peninsula Newfoundland location Google mapshttps://polarbearscience.com/wp-content/uploads/2018/03/red-bay-labrador-location_google-maps.jpgRed Bay Labrador location_google mapshttps://polarbearscience.com/wp-content/uploads/2018/03/red-bay-labrador-polar-bears-8-march-2018_vicki-hancock-photo_cbc-9-march-2018.jpgRed Bay Labrador polar-bears 8 March 2018_Vicki Hancock photo_CBC 9 March 20182024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/03/11/amstrup-colleages-cant-refute-my-critique-of-their-2007-polar-bear-survival-model-part-1/https://polarbearscience.com/wp-content/uploads/2018/03/beaufort-sea-male-polar-bear-usgs_2005-amstrup-photo.jpgBeaufort Sea male polar bear USGS_2005 Amstrup photohttps://polarbearscience.com/wp-content/uploads/2018/03/pb-map-all-populations-pbsg-original-plus-okhotsk.jpgPB map-all-populations PBSG original plus Okhotskhttps://polarbearscience.com/wp-content/uploads/2018/03/amstrup-et-al-2011-fig-1-ecoregions_lg.jpgAmstrup et al 2011 fig 1 ecoregions_lghttps://polarbearscience.com/wp-content/uploads/2018/03/amstrup-et-al-2008-plate-8.jpgAmstrup et al 2008 plate 8https://polarbearscience.com/wp-content/uploads/2018/03/durner-et-al-2009-fig-12-a-sea-ice-extent-summer-models.jpgDurner et al. 2009 FIg 12 a sea ice extent summer modelshttps://polarbearscience.com/wp-content/uploads/2018/03/amstrup-et-al-2007-fig-15-projection-vs-2007.jpgAmstrup et al 2007 fig 15 projection vs 2007https://polarbearscience.com/wp-content/uploads/2018/03/amstrup_seaice_march-2-2018-fact-check.pngamstrup_seaice_March 2 2018 Fact check2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/03/12/amstrup-colleages-cant-refute-my-critique-of-their-2007-polar-bear-survival-model-part-2/https://polarbearscience.com/wp-content/uploads/2018/03/polar_bear_usfws_fat-chukchi-sea-bear.jpgpolar_bear_USFWS_fat Chukchi Sea bearhttps://polarbearscience.com/wp-content/uploads/2018/03/courtland-2008-headline.jpgCourtland 2008 headlinehttps://polarbearscience.com/wp-content/uploads/2018/03/polar_bear_biologist_usfws_working_with_a_bear_oct-24-2001-amstrup-photo.jpgPolar_Bear_Biologist_USFWS_working_with_a_Bear_Oct 24 2001 Amstrup photohttps://polarbearscience.com/wp-content/uploads/2018/03/stirling-2002_fig-5-cropped.jpgStirling 2002_fig 5 cropped2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/03/26/an-embarrassment-to-science-bioscience-editor-formally-rejects-retraction-request/https://polarbearscience.com/wp-content/uploads/2018/03/the-sulk_march-21-2012_0206_sm-e1522049293834.jpgThe sulk_March 21 2012_0206_smhttps://polarbearscience.com/wp-content/uploads/2018/03/collins-email_second-change-to-harvey.jpgCollins email_second change to Harveyhttps://polarbearscience.com/wp-content/uploads/2018/03/collins-email_first-change-to-harvey.jpgCollins email_first change to Harveyhttps://polarbearscience.com/wp-content/uploads/2018/03/lewpapers_scr-271.jpgLewPapers_scr 2712024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/04/03/correction-notice-for-harvey-et-al-bioscience-paper-retracted-due-to-error/https://polarbearscience.com/wp-content/uploads/2018/04/retraction-watch-headline-3-april-2018.jpgRetraction Watch headline 3 April 2018https://polarbearscience.com/wp-content/uploads/2018/03/idea-1.jpgidea 1https://polarbearscience.com/wp-content/uploads/2018/03/dr-mann-takes-the-hypocritic-oath_2017.pngDr. Mann takes the hypocritic oath_20172024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/04/09/polar-bear-population-numbers-are-for-kids-says-specialist-andrew-derocher/https://polarbearscience.com/wp-content/uploads/2018/04/courtland-2008-headline.jpgCourtland 2008 headlinehttps://polarbearscience.com/wp-content/uploads/2018/04/nbc-2015_3-there-will-soon-be-a-big-decline-in-polar-bear-numbers-snap.jpgNBC 2015_3 there will soon be a big decline in polar bear numbers snaphttps://polarbearscience.com/wp-content/uploads/2018/04/polar-bear_usfws-labeled.jpgpolar-bear_USFWS labeledhttps://polarbearscience.com/wp-content/uploads/2018/03/amstrup-2014-june-re-vongravens-unfortunate-remark-about-population-estimates.jpgAmstrup 2014 June re Vongravens unfortunate remark about population estimateshttps://polarbearscience.com/wp-content/uploads/2018/03/derocher-tweet-2018-feb-28-quote.jpgDerocher tweet 2018 Feb 28 quote2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/04/12/steve-amstrup-is-lying-to-the-media-about-my-critique-of-his-2007-model/2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/04/15/polar-bear-specialist-mitch-taylor-on-accountability-in-polar-bear-science/2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/04/21/less-svalbard-polar-bear-habitat-during-the-early-holocene-than-now/https://polarbearscience.com/wp-content/uploads/2018/04/barents-sea-split-by-country.jpgBarents Sea split by countryhttps://polarbearscience.com/wp-content/uploads/2018/04/barents-sea-ice-2018-april-18-nis.pngBarents Sea ice 2018 April 18 NIShttps://polarbearscience.com/wp-content/uploads/2018/04/mangerud-and-svendsen-2017-svalbard_holocene-thermal-max_fig-7.jpgMangerud and Svendsen 2017 Svalbard_Holocene Thermal Max_Fig 7https://polarbearscience.com/wp-content/uploads/2018/04/mangerud-and-svendsen-2017-svalbard_holocene-thermal-max_fig-1.jpgMangerud and Svendsen 2017 Svalbard_Holocene Thermal Max_Fig 12024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/04/27/polar-bear-habitat-update-early-spring-2018/https://polarbearscience.com/wp-content/uploads/2018/04/svalbard-ice-extent-2018-april-25-graph_nis.pngSvalbard ice extent 2018 April 25 graph_NIShttps://polarbearscience.com/wp-content/uploads/2018/04/barents-sea-ice-extent-2018-april-26_nis.pngBarents Sea ice extent 2018 April 26_NIShttps://polarbearscience.com/wp-content/uploads/2018/04/svalbard-ice-extent-2018-april-26_nis.pngSvalbard ice extent 2018 April 26_NIShttps://polarbearscience.com/wp-content/uploads/2018/04/sea-ice-canada-2018-april-261.gifSea ice Canada 2018 April 26https://polarbearscience.com/wp-content/uploads/2018/04/newfoundland-daily-sea-ice-stage-of-development-2018-april-25.gifNewfoundland daily sea ice stage of development 2018 April 25https://polarbearscience.com/wp-content/uploads/2018/04/hudson-bay-weekly-stage-of-development-2018-april-23.gifHudson Bay weekly stage of development 2018 April 23https://polarbearscience.com/wp-content/uploads/2018/04/eastern-arctic-weekly-stage-of-development-2018-april-23.gifEastern Arctic weekly stage of development 2018 April 23https://polarbearscience.com/wp-content/uploads/2018/04/western-arctic-weekly-stage-of-development-2018-april-23.gifWestern Arctic weekly stage of development 2018 April 23https://polarbearscience.com/wp-content/uploads/2018/04/sea-ice-canada-2018-april-25.gifSea ice Canada 2018 April 25https://polarbearscience.com/wp-content/uploads/2018/04/polar_bear_male-on-sea-ice_alaska-katovik-regehr-photo_april-29-2005_sm-labeled.jpgPolar_Bear_male on sea ice_Alaska Katovik Regehr photo_April 29, 2005_sm labeled2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/04/30/low-bering-sea-ice-mostly-due-to-south-winds-no-data-on-an-impact-for-polar-bears/https://polarbearscience.com/wp-content/uploads/2018/04/map-chukchisea.jpgmap-ChukchiSeahttps://polarbearscience.com/wp-content/uploads/2018/04/sea-ice-2018-april-28-nsidc.pngSea ice 2018 April 28 NSIDChttps://polarbearscience.com/wp-content/uploads/2018/04/sea-ice-extent-2018-march-average-nsidc.pngSea ice extent 2018 March average NSIDChttps://polarbearscience.com/wp-content/uploads/2018/04/sea-ice-extent-2018-feb-average-nsidc.pngSea ice extent 2018 Feb average NSIDChttps://polarbearscience.com/wp-content/uploads/2018/04/garner-et-al-1990-chukchi-and-bering-sea-pbs-fig-3a-april-may.jpgGarner et al 1990 Chukchi and Bering sea PBs Fig 3A April Mayhttps://polarbearscience.com/wp-content/uploads/2018/04/garner-et-al-1990-chukchi-and-bering-sea-pbs-fig-3d-jan-march.jpgGarner et al 1990 Chukchi and Bering sea PBs Fig 3D Jan-Marchhttps://polarbearscience.com/wp-content/uploads/2018/04/garner-et-al-1990-chukchi-and-bering-sea-pbs-fig-2.jpgGarner et al 1990 Chukchi and Bering sea PBs Fig 2https://polarbearscience.com/wp-content/uploads/2018/04/rode-et-al-2014-chukchi-beaufort-pbs-fig-1.jpgRode et al. 2014 Chukchi Beaufort pbs Fig 1https://polarbearscience.com/wp-content/uploads/2018/04/rode-and-regehr-2010_chukchi_report2010_fig1_triplets_labelled.jpgRode and Regehr 2010_Chukchi_report2010_Fig1_triplets_labelled2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/05/03/polynya-refresher-open-water-in-spring-is-due-to-winds-currents-not-ice-melt/https://polarbearscience.com/wp-content/uploads/2018/05/beaufort-sea-male-polar-bear-usgs_2005-amstrup-photo.jpgBeaufort Sea male polar bear USGS_2005 Amstrup photohttps://polarbearscience.com/wp-content/uploads/2018/05/polynyas-and-shore-leads-vs-sea-ice-at-20-may-2015_polarbearscience.jpgPolynyas and shore leads vs sea ice at 20 May 2015_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2018/05/seal-habitat-frozen-open-lead_beaufort-2008_miller.jpgSeal habitat frozen open lead_Beaufort 2008_Millerhttps://polarbearscience.com/wp-content/uploads/2018/05/sea-ice-canada-2018-may-3.gifSea ice Canada 2018 May 3https://polarbearscience.com/wp-content/uploads/2018/05/sea-ice-canada-2018-april-26.gifSea ice Canada 2018 April 26https://polarbearscience.com/wp-content/uploads/2018/05/bathurst-and-w-beaufort-polynyas_1975-vs-2015_polarbearscience.jpgBathurst and W Beaufort polynyas_1975 vs 2015_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2018/05/polynyas-and-shore-leads_smith-and-rigby-1981.jpgPolynyas and shore leads_Smith and Rigby 19812024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/05/15/polar-bear-habitat-update-mid-may-little-change-since-1989-despite-co2-increase/https://polarbearscience.com/wp-content/uploads/2018/05/sea-ice-2018-april-average_nsidc-graph.pngSea ice 2018 April average_NSIDC graphhttps://polarbearscience.com/wp-content/uploads/2018/05/eastern-arctic-ice-stage-of-development-weekly-at-9-may-2016.gifEastern Arctic ice stage of development weekly at 9 May 2016https://polarbearscience.com/wp-content/uploads/2018/05/eastern-arctic-weekly-stage-of-development-2018-may-7.gifEastern Arctic weekly stage of development 2018 May 7https://polarbearscience.com/wp-content/uploads/2018/05/scripps-co2-curve-at-29-april-2018.jpgScripps CO2 curve at 29 April 2018https://polarbearscience.com/wp-content/uploads/2018/05/polar-bear-feeding_shutterstock_sm.jpgPolar bear feeding_Shutterstock_smhttps://polarbearscience.com/wp-content/uploads/2018/05/masie_all_zoom_4km-2018-may-14.pngmasie_all_zoom_4km 2018 May 14https://polarbearscience.com/wp-content/uploads/2018/05/barents-sea-ice-extent-2018-may-14_nis.pngBarents Sea ice extent 2018 May 14_NIShttps://polarbearscience.com/wp-content/uploads/2018/05/western-arctic-ice-stage-of-development-weekly-at-9-may-2016.gifWestern Arctic ice stage of development weekly at 9 May 2016https://polarbearscience.com/wp-content/uploads/2018/05/western-arctic-weekly-stage-of-development-2018-may-7.gifWestern Arctic weekly stage of development 2018 May 7https://polarbearscience.com/wp-content/uploads/2018/05/hudson-bay-weekly-stage-of-development-2018-may-7.gifHudson Bay weekly stage of development 2018 May 72024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/05/20/tracking-polar-bears-in-the-beaufort-sea-resumes-after-a-one-year-hiatus/https://polarbearscience.com/wp-content/uploads/2018/05/tranquilized_pb570_s-beaufort-march-2014_usgs.jpgTranquilized_pb570_S Beaufort March 2014_USGShttps://polarbearscience.com/wp-content/uploads/2018/05/beaufort-tracking-usgs-bear-movements-april-2018-sm.jpgBeaufort tracking USGS bear-movements-April 2018 smFrom original caption: "Movements of 14 satellite-tagged polar bear for the month of April, 2018. These bears received satellite eartag transmitters in 2018 on the spring-time sea ice of the southern Beaufort Sea. Polar bear satellite telemetry data are shown with MODIS imagery from 28 April, 2018." https://polarbearscience.com/wp-content/uploads/2018/05/beaufort-tracking-usgs-bear-movements-november-2016-sm.jpgBeaufort tracking USGS bear-movements-November 2016 smhttps://polarbearscience.com/wp-content/uploads/2018/05/amstrup-with-1400-lb-bear-beaufort-1982_noaa.jpgAmstrup with 1400 lb bear Beaufort 1982_NOAA2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/05/20/iucn-polar-bear-specialists-reject-ipcc-supported-forecasts-of-sea-ice-based-on-co2/https://polarbearscience.com/wp-content/uploads/2018/05/polar_bear_male_regehr-photo_march-21-2010_labeled.jpgPolar_Bear_male_Regehr photo_March 21 2010_labeledhttps://polarbearscience.com/wp-content/uploads/2018/05/regehr-et-al-2016-fig-2-cropped.jpgRegehr et al. 2016 Fig 2 cropped2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/05/24/status-of-canadian-polar-bears-updated-map-from-environment-canada/https://polarbearscience.com/wp-content/uploads/2018/05/sea-ice-sept-1979-2017-graph-nsidc.pngSea ice Sept 1979-2017 graph NSIDChttps://polarbearscience.com/wp-content/uploads/2018/05/lunn-et-al-2016-ea-cover-image-wh-bear.pngLunn et al 2016 EA cover image WH bearhttps://polarbearscience.com/wp-content/uploads/2018/05/canada-polar-bear-status-at-2017-pbtc_cropped-from-slide.jpgCanada Polar Bear Status at 2017 PBTC_cropped from slide2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/05/27/activist-laments-esa-listing-of-polar-bears-in-2008-failed-to-achieve-her-political-goals/https://polarbearscience.com/wp-content/uploads/2018/05/walking-bear_129029633_web-size.jpgWalking bear_129029633_web sizehttps://polarbearscience.com/wp-content/uploads/2018/05/walrus-cape-seniavin-ice-flow-usfws.jpgWalrus Cape Seniavin ice flow USFWShttps://polarbearscience.com/wp-content/uploads/2018/05/canada-polar-bear-status-at-2017-pbtc.jpgCanada Polar Bear Status at 2017 PBTChttps://polarbearscience.com/wp-content/uploads/2018/05/fat-mother-and-cubs_southern-beaufort-april-2016_usgs.jpgFat mother and cubs_Southern Beaufort April 2016_USGS2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/05/30/does-thick-first-year-ice-on-hudson-bay-mean-a-late-date-ashore-for-wh-polar-bears-in-2018/https://polarbearscience.com/wp-content/uploads/2018/05/hudson-bay-weekly-stage-of-development-2018-may-28.gifHudson Bay weekly stage of development 2018 May 28https://polarbearscience.com/wp-content/uploads/2018/05/hudson-bay-weekly-stage-of-development-2011_july-25.gifHudson Bay weekly stage of development 2011_July 25https://polarbearscience.com/wp-content/uploads/2018/05/hudson-bay-weekly-stage-of-development-2011_july-11.gifHudson Bay weekly stage of development 2011_July 11https://polarbearscience.com/wp-content/uploads/2018/05/hudson-bay-weekly-stage-of-development-2011_june-20.gifHudson Bay weekly stage of development 2011_June 20https://polarbearscience.com/wp-content/uploads/2018/05/hudson-bay-weekly-stage-of-development-2011_may-161.gifHudson Bay weekly stage of development 2011_May 16https://polarbearscience.com/wp-content/uploads/2018/05/james-bay-female-and-cub_ontaro-govt.jpgJames Bay female and cub_Ontaro Govthttps://polarbearscience.com/wp-content/uploads/2018/05/foxe-basin-polar_bears_rowley_island_stapleton-2012-press-photo-labeled-sm.jpgFoxe Basin polar_bears_rowley_island_Stapleton 2012 press photo labeled smhttps://polarbearscience.com/wp-content/uploads/2018/05/hudson-bay-weekly-stage-of-development-2011_may-16.gifHudson Bay weekly stage of development 2011_May 16https://polarbearscience.com/wp-content/uploads/2018/05/lunn-et-al-2013-whb-breakup-dates-to-2012-with-1999-marked.jpgLunn et al 2013 WHB breakup dates to 2012 with 1999 markedhttps://polarbearscience.com/wp-content/uploads/2018/05/hudson-bay-weekly-stage-of-development-2010_july-5.gifHudson Bay weekly stage of development 2010_July 52024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/06/01/harvey-et-al-paper-becomes-the-poster-child-of-the-reproducibility-crisis-in-science/https://polarbearscience.com/wp-content/uploads/2018/05/poster-child-of-the-reproducibilty-crisis-in-science.jpgPoster Child of the reproducibilty crisis in sciencehttps://polarbearscience.com/wp-content/uploads/2018/05/polar-bear-survivor-small-tote-image-1.jpgPolar bear survivor small tote image 1https://polarbearscience.com/wp-content/uploads/2018/05/polar-bear-survivor-large-tote-image-closeup.jpgPolar bear survivor large tote image closeuphttps://polarbearscience.com/wp-content/uploads/2018/05/polar-bear-survivor-large-tote-image-11.jpgPolar bear survivor large tote image 1https://polarbearscience.com/wp-content/uploads/2018/05/stupidest-paper-mousepad-white-final.jpgStupidest paper mousepad white finalhttps://polarbearscience.com/wp-content/uploads/2018/05/polar-bear-survivor-small-tote-image-2.jpgPolar bear survivor small tote image 22024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/06/03/southern-hudson-bay-polar-bear-region-shows-slight-decline-after-decades-of-low-sea-ice/https://polarbearscience.com/wp-content/uploads/2018/06/regehr-et-al-2016-polar-bear-red-list-fig-2-bottom-half.jpgRegehr et al 2016 polar bear red list fig 2 bottom halfhttps://polarbearscience.com/wp-content/uploads/2018/06/canadian-arctic-nov-30-2015_cis.gifCanadian Arctic Nov 30 2015_CIShttps://polarbearscience.com/wp-content/uploads/2018/06/hudson-bay-breakup-aug-6-2015_cis.gifHudson Bay breakup Aug 6 2015_CIShttps://polarbearscience.com/wp-content/uploads/2018/06/obbard-et-al-2016-fig-4.jpgObbard et al 2016 Fig 4From Obbard et al. 2016, their Fig. 4: Julian day dates of freeze-up (grey dots) and breakup (hollow dots) compared to duration of ice cover (all based on 5% total ice concentration. 1980-2012. The latest freeze-up date was about day 350 in 1998 (16 December).https://polarbearscience.com/wp-content/uploads/2018/06/james-bay-polar-bear_ministry-of-ontario_walton-photo.jpgJames Bay polar bear_ministry of Ontario_Walton photohttps://polarbearscience.com/wp-content/uploads/2018/06/southern-hb-labelled.jpgSouthern HB labelled2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/06/06/critical-evidence-on-w-hudson-bay-polar-bears-still-not-published-after-25-years/https://polarbearscience.com/wp-content/uploads/2018/05/stirling-and-derocher-2012-fig-5.jpgStirling and Derocher 2012 fig 5https://polarbearscience.com/wp-content/uploads/2018/05/derocher-in-the-field-in-wh_cbc-story-2016.jpgDerocher in the field in WH_CBC story 20162024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/06/11/lingering-late-season-sea-ice-brings-polar-bear-visitor-to-northern-newfoundland/https://polarbearscience.com/wp-content/uploads/2018/06/hudson-bay-north-daily-stage-of-development-2018-june-10-ice-warning.gifHudson Bay North daily stage of development 2018 June 10 ice warninghttps://polarbearscience.com/wp-content/uploads/2018/06/saint-lunaire-griquet-newfoundland-location_google-maps.jpgSaint Lunaire Griquet Newfoundland location_Google mapshttps://polarbearscience.com/wp-content/uploads/2018/06/saint-lunaire-griquet-newfoundland-location_google-maps-june-2018.jpgSaint Lunaire Griquet Newfoundland location_Google maps June 2018https://polarbearscience.com/wp-content/uploads/2018/06/newfoundland-polar-bear-10-june-2018_iceberg-festival-committee_thresa-burden-photo-facebook-ctv.jpgNewfoundland polar bear 10 June 2018_Iceberg Festival Committee_Thresa Burden photo facebook CTVhttps://polarbearscience.com/wp-content/uploads/2018/06/newfoundland-polar-bear-10-june-2018_iceberg-festival-committee_thresa-burden-photo.jpgNewfoundland polar bear 10 June 2018_Iceberg Festival Committee_Thresa Burden photo2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/06/11/environment-canada-maps-of-polar-bear-population-and-status-assessments-2018/https://polarbearscience.com/wp-content/uploads/2018/06/change-in-pb-status-and-population-map-ec-2010_2014_2018.jpgChange in pb status and population map EC 2010_2014_2018https://polarbearscience.com/wp-content/uploads/2018/06/canadian-pb-status-and-population-map-ec-2018.jpgCanadian pb status and population map EC 2018https://polarbearscience.com/wp-content/uploads/2018/06/global-pb-status-and-population-map-ec-2018.jpgGlobal pb status and population map EC 20182024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/06/15/svalbard-polar-bear-data-2016-through-2018-shows-no-impact-of-low-ice-years/https://polarbearscience.com/wp-content/uploads/2018/06/barents-sea-ice-2016-may-24-nis-archive.jpgBarents Sea ice 2016 May 24 NIS archivehttps://polarbearscience.com/wp-content/uploads/2018/06/barents-sea-ice-extent-2018-may-24_nis.pngBarents Sea ice extent 2018 May 24_NIShttps://polarbearscience.com/wp-content/uploads/2018/06/barents-sea-ice-extent-2018-april-24_nis.pngBarents Sea ice extent 2018 April 24_NIShttps://polarbearscience.com/wp-content/uploads/2018/06/aars-and-others-2017-climate-change-and-polar-bears_cubs-of-diff-ages-to-2018.jpgAars and others 2017 climate change and polar bears_Cubs of diff ages to 2018https://polarbearscience.com/wp-content/uploads/2018/06/aars-et-al-polar-bear-cubs-per-litter_to-2018.jpgAars et al Polar bear cubs per litter_to 2018https://polarbearscience.com/wp-content/uploads/2018/06/aars-and-others-2017-climate-change-and-polar-bears_male-body-condition-to-2018.jpgAars and others 2017 climate change and polar bears_Male body condition to 2018https://polarbearscience.com/wp-content/uploads/2018/06/aars-and-others-2018-sea-ice-cover-and-important-polar-bear-denning-areas-to-2018.jpgAars and others 2018 sea ice cover and important polar bear denning areas to 2018https://polarbearscience.com/wp-content/uploads/2018/06/svalbard-polar-bear_np015991-isbjorn-ja.jpgSvalbard polar bear_NP015991-isbjorn-JA2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/06/20/wear-white-on-the-solstice-to-celebrate-polar-bear-success-in-a-warming-world/https://polarbearscience.com/wp-content/uploads/2018/06/masie_all_zoom_4km-2018-june-19.pngmasie_all_zoom_4km 2018 June 19https://polarbearscience.com/wp-content/uploads/2018/06/white-sunglasses.jpgwhite sunglasseshttps://polarbearscience.com/wp-content/uploads/2018/06/white-hats.jpgWhite hats2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/06/21/hudson-bay-ice-update-more-thick-first-year-ice-habitat-for-polar-bears-in-2018-than-2004/2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/06/25/hansens-1988-climate-change-testimony-was-the-answer-to-stirlings-polar-bear-problem/https://polarbearscience.com/wp-content/uploads/2018/06/da-is-measuring_ian-stirling.jpgDA-IS-measuring_Ian Stirlinghttps://polarbearscience.com/wp-content/uploads/2018/06/pb-fat-fem-and-andy_ian-stirling-1984.jpgPb-fat-fem-and-Andy_Ian Stirling 1984https://polarbearscience.com/wp-content/uploads/2018/06/ramsay-and-stirling-1988-obese-pb-female.jpgRamsay and Stirling 1988 obese PB female2024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/06/27/hudson-bay-sea-ice-update-more-ice-in-the-east-than-usual-but-less-in-the-west/https://polarbearscience.com/wp-content/uploads/2018/06/hudson-bay-south-daily-concentration-2018-june-25.gifHudson Bay South daily concentration 2018 June 25https://polarbearscience.com/wp-content/uploads/2018/06/hudson-bay-north-daily-concentration-2018-june-25.gifHudson Bay North daily concentration 2018 June 25https://polarbearscience.com/wp-content/uploads/2018/06/whb-males-and-juvs-with-ear-tags_25-june-2018_derocher-lab.jpgWHB males and juvs with ear tags_25 June 2018_Derocher labhttps://polarbearscience.com/wp-content/uploads/2018/06/whb-females-with-collars_25-june-2018_derocher-lab.jpgWHB females with collars_25 June 2018_Derocher labhttps://polarbearscience.com/wp-content/uploads/2018/06/hudson-bay-weekly-stage-of-development-2018-june-25.gifHudson Bay weekly stage of development 2018 June 25https://polarbearscience.com/wp-content/uploads/2018/06/hudson-bay-weekly-stage-of-development-2010_june-14.gifHudson Bay weekly stage of development 2010_June 14https://polarbearscience.com/wp-content/uploads/2018/06/hudson-bay-weekly-departure-from-normal-2018-june-25.gifHudson Bay weekly departure from normal 2018 June 252024-10-29T14:50:05+00:00monthlyhttps://polarbearscience.com/2018/07/03/spring-feeding-for-polar-bears-is-over-sea-ice-levels-are-now-largely-irrelevant/https://polarbearscience.com/wp-content/uploads/2018/07/polar-bear-feeding-by-season-simple_nov-29-2015.jpgPolar bear feeding by season simple_Nov 29 2015https://polarbearscience.com/wp-content/uploads/2018/07/masie_all_zoom_4km-2018-july-2.pngmasie_all_zoom_4km 2018 July 2https://polarbearscience.com/wp-content/uploads/2018/07/masie_all_zoom_4km-2016-may-31.pngmasie_all_zoom_4km 2016 May 31https://polarbearscience.com/wp-content/uploads/2018/07/masie_all_zoom_4km-2018-july-1.pngmasie_all_zoom_4km 2018 July 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USFWS photo.https://polarbearscience.com/wp-content/uploads/2017/12/wrangel-island-triplets-perhaps-daily-mail-22-nov-2017-closeup.jpgWrangel Island triplets perhaps Daily Mail 22 Nov 2017 closeuphttps://polarbearscience.com/wp-content/uploads/2017/12/chukchi-beaufortcirculation_uaf.pngchukchi-beaufortCIRCULATION_UAFhttps://polarbearscience.com/wp-content/uploads/2017/12/map-chukchisea_lg.jpgmap-ChukchiSea_lghttps://polarbearscience.com/wp-content/uploads/2017/12/map-kanebasin.jpgmap-KaneBasinhttps://polarbearscience.com/wp-content/uploads/2017/12/map-baffinbay.jpgmap-BaffinBayhttps://polarbearscience.com/wp-content/uploads/2017/12/chukchi-bering-sea_seaiceconc_nws_asip_2017-nov-19_noaa.jpgChukchi Bering Sea_SeaIceConc_NWS_ASIP_2017 Nov 19_NOAA2024-10-28T17:27:53+00:00monthlyhttps://polarbearscience.com/2018/01/21/polar-bear-numbers-not-declining-despite-media-headlines-suggesting-otherwise/https://polarbearscience.com/wp-content/uploads/2018/01/global-pb-population-size-graphic-polarbearscience-20-jan-2018.jpgGlobal pb population size graphic PolarBearScience 20 Jan 20182024-10-28T17:27:53+00:00monthlyhttps://polarbearscience.com/2017/01/09/fake-news-on-polar-bear-survival-predictions-is-political-posturing/https://polarbearscience.com/wp-content/uploads/2017/01/biggest-threat-to-polar-bears-is-global-warming-nyt-headline_9-jan-2017.jpgbiggest-threat-to-polar-bears-is-global-warming-nyt-headline_9-jan-20172024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/01/18/polar-bears-onshore-in-svalbard-in-most-dangerous-season-for-bear-attacks/https://polarbearscience.com/wp-content/uploads/2017/01/svalbard-female-2-cubs-16-jan-2017_bearsmine7_icepeople-news.jpgsvalbard-female-2-cubs-16-jan-2017_bearsmine7_icepeople-newshttps://polarbearscience.com/wp-content/uploads/2017/01/longyearbyen_sm_location_wikipedia.pnglongyearbyen_sm_location_wikipediahttps://polarbearscience.com/wp-content/uploads/2017/01/svalbard-ice-2017-jan-17_nis.pngsvalbard-ice-2017-jan-17_nis2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/01/25/polar-bears-onshore-in-svalbard-update-bears-again-run-out-of-longyearbyen/https://polarbearscience.com/wp-content/uploads/2017/01/svalbard-ice-2017-jan-25_nis.pngsvalbard-ice-2017-jan-25_nishttps://polarbearscience.com/wp-content/uploads/2017/01/svalbard_labelled-van-mijenfjorden_wikipedia.pngsvalbard_labelled-van-mijenfjorden_wikipediahttps://polarbearscience.com/wp-content/uploads/2017/01/svalbard-female-2-cubs-23-jan-2017_icepeople-news.jpgsvalbard-female-2-cubs-23-jan-2017_icepeople-news2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/01/30/us-biologists-defense-of-flawed-polar-bear-predictions-is-an-embarrassment-to-science/2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/02/07/svalbard-polar-bears-thrive-in-part-due-to-ringed-seal-pups-in-the-spring-pack-ice/https://polarbearscience.com/wp-content/uploads/2017/02/ringed-seal-pup-in-snow-cave.jpgringed-seal-pup-in-snow-cavehttps://polarbearscience.com/wp-content/uploads/2017/02/barents-sea-ice-2017-feb-6_nis.pngbarents-sea-ice-2017-feb-6_nishttps://polarbearscience.com/wp-content/uploads/2017/01/crockford-and-frederick-2011-fig-4_1.jpgcrockford-and-frederick-2011-fig-4_1https://polarbearscience.com/wp-content/uploads/2017/01/ringed-seal-in-snow-cave_b-kelly-wikipedia.jpgringed-seal-in-snow-cave_b-kelly-wikipedia2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/02/09/new-paper-updates-lack-of-trend-in-w-hudson-bay-breakupfreeze-up-dates-to-2015/https://polarbearscience.com/wp-content/uploads/2017/02/castro-de-la-guardia-et-al-derocher-2017-fig-1a-location.jpgcastro-de-la-guardia-et-al-derocher-2017-fig-1a-locationhttps://polarbearscience.com/wp-content/uploads/2017/02/castro-de-la-guardia-et-al-derocher-2017-fig-3-no-caption.jpgcastro-de-la-guardia-et-al-derocher-2017-fig-3-no-captionFigure 3 from Castro de la Guardia (2017) showing freeze-up and breakup dates and ice-free days 1979-2015 for Western Hudson Bay, showing that the breakup date in 2011 (middle panel) was the earliest since 2003, at approximately Day 168.https://polarbearscience.com/wp-content/uploads/2017/02/castro-de-la-guardia-et-al-derocher-2017-whb-sea-ice-to-2015-fig-3.jpgcastro-de-la-guardia-et-al-derocher-2017-whb-sea-ice-to-2015-fig-32024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/02/15/polar-bear-habitat-update-for-canada-at-mid-february/https://polarbearscience.com/wp-content/uploads/2017/02/sea-ice-extent-canada-2013-feb-16-cis.gifsea-ice-extent-canada-2013-feb-16-cishttps://polarbearscience.com/wp-content/uploads/2017/02/sea-ice-extent-canada_2014-feb-12_cis.gifsea-ice-extent-canada_2014-feb-12_cishttps://polarbearscience.com/wp-content/uploads/2017/02/sea-ice-extent-canada-2015-feb-14-cis.gifsea-ice-extent-canada-2015-feb-14-cishttps://polarbearscience.com/wp-content/uploads/2017/02/sea-ice-extent-canada-2017-feb-14_cis.gifsea-ice-extent-canada-2017-feb-14_cis2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/02/15/baffin-bay-and-kane-basin-polar-bears-not-declining-concludes-new-report/https://polarbearscience.com/wp-content/uploads/2017/02/polar-bear-feeding_shutterstock_sm.jpgpolar-bear-feeding_shutterstock_smhttps://polarbearscience.com/wp-content/uploads/2017/02/map-baffinbay.jpgmap-baffinbayhttps://polarbearscience.com/wp-content/uploads/2017/02/kane-basin-darted_bear_570.jpgkane-basin-darted_bear_570Kane Basin polar bear 2012 From NunatsiaqOnline_9Sept2014_Newshttps://polarbearscience.com/wp-content/uploads/2017/02/polarbearatthulerobindavies-500x349-sm.jpgpolarbearatthulerobindavies-500x349-smA polar bear in the summer of 2012 near Thule, NW Greenland (part of the Baffin Bay subpopulation). Note the decidedly chubby back end on this bear, who looks well prepared for winter. Photo by Robin Davies. http://www.polarfield.com/blog/bears-thule/ [details at my Quote Archive, Featured Quote #6]https://polarbearscience.com/wp-content/uploads/2017/02/baffin-bay-darting-cbc-headline-2012-oct-18.jpgbaffin-bay-darting-cbc-headline-2012-oct-18https://polarbearscience.com/wp-content/uploads/2017/02/baffin-bay-area-and-sea-ice-composite.jpgbaffin-bay-area-and-sea-ice-compositehttps://polarbearscience.com/wp-content/uploads/2017/02/ec_polarbearstatus_and-trends-lg_2010-2014-mapscanada_oct-26-2014.jpgec_polarbearstatus_and-trends-lg_2010-2014-mapscanada_oct-26-20142024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/02/23/global-polar-bear-population-larger-than-previous-thought-almost-30000/https://polarbearscience.com/wp-content/uploads/2017/02/global-pb-population-size-graphic2_2017-feb-polarbearscience-corrected.jpgglobal-pb-population-size-graphic2_2017-feb-polarbearscience-correctedhttps://polarbearscience.com/wp-content/uploads/2017/02/global-pb-population-size-graphic-2017-feb-polarbearscience1.jpgglobal-pb-population-size-graphic-2017-feb-polarbearscience2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/02/26/thriving-polar-bears-a-reason-to-celebrate-on-polar-bear-day-and-read-my-books/https://polarbearscience.com/wp-content/uploads/2017/02/polar_bear_family_at_bone_pile-kaktovik-20-april-2016.jpgpolar_bear_family_at_bone_pile-kaktovik-20-april-2016https://polarbearscience.com/wp-content/uploads/2017/02/crockford-pb-outstanding-survivors-2017_end-of-pg-30.jpgcrockford-pb-outstanding-survivors-2017_end-of-pg-30https://polarbearscience.com/wp-content/uploads/2017/02/crockford-pb-facts-and-myths-2017-pg-32.jpgcrockford-pb-facts-and-myths-2017-pg-32https://polarbearscience.com/wp-content/uploads/2017/02/humpback-whale-and-calf-012016-noaa.jpghumpback-whale-and-calf-012016-noaa2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/02/27/polar-bear-scare-unmasked-the-saga-of-a-toppled-global-warming-icon-video/2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/02/28/science-behind-the-video-polar-bear-scare-unmasked-updated-paper-now-available/https://polarbearscience.com/wp-content/uploads/2017/02/crockford-2017-v3-title-page-graphic-3.jpgCrockford 2017 V3 title page graphic 3https://polarbearscience.com/wp-content/uploads/2017/02/crockford-2017-version-2-title-page-graphic.jpgcrockford-2017-version-2-title-page-graphic2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/03/03/report-of-hudson-bay-polar-bear-onshore-in-winter-is-rare-indeed-heres-why/https://polarbearscience.com/wp-content/uploads/2017/03/sea-ice-extent-canada-2014-june-20.gifsea-ice-extent-canada-2014-june-20https://polarbearscience.com/wp-content/uploads/2017/03/inukjuak-quebec-location.jpginukjuak-quebec-locationhttps://polarbearscience.com/wp-content/uploads/2017/03/bear-onshore-end-feb-2017_cbc-photo-facebook.jpgbear-onshore-end-feb-2017_cbc-photo-facebookhttps://polarbearscience.com/wp-content/uploads/2017/03/map-southernhudsonbay_lg.jpgmap-southernhudsonbay_lg2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/03/08/several-fat-polar-bears-sighted-in-southern-labrador-early-this-week/https://polarbearscience.com/wp-content/uploads/2017/03/newfoundland-ne-daily-ice-conc-7-march-2017_cis.gifNewfoundland NE daily ice conc 7 March 2017_CIShttps://polarbearscience.com/wp-content/uploads/2017/03/sea-ice-extent-canada-2017-march-7cis.gifSea ice extent Canada 2017 March 7CIShttps://polarbearscience.com/wp-content/uploads/2017/03/black-tickle-map-labrador-2016.jpgBlack-tickle-map-Labrador 2016https://polarbearscience.com/wp-content/uploads/2017/03/black-tickle-polar-bear-visits-7-march-2017_cbc-news-8-march.jpgBlack Tickle polar bear visits 7 March 2017_CBC news 8 March2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/03/27/another-fat-bear-onshore-in-late-winter-along-gulf-of-st-lawrence-north-coast/https://polarbearscience.com/wp-content/uploads/2017/03/gulf-polar-bear-quebecpierre-alexandre-defoy-22-march-2017.jpgGulf Polar-bear-quebecPierre-Alexandre Defoy 22 March 2017https://polarbearscience.com/wp-content/uploads/2017/03/gulf-weekly-ice-conc-20-march-2017_cis.gifGulf Weekly ice conc 20 March 2017_CIShttps://polarbearscience.com/wp-content/uploads/2017/03/pakuashipi-quebec-google-maps-location-2017.jpgPakuashipi Quebec google maps location 2017https://polarbearscience.com/wp-content/uploads/2017/03/sea-ice-extent-canada-2017-march-20-cis.gifSea ice extent Canada 2017 March 20 CIShttps://polarbearscience.com/wp-content/uploads/2017/03/gulf-st-lawrence-north-shore-pb-visit-22-march-2017_cbc-headline.jpgGulf St Lawrence North shore PB visit 22 March 2017_CBC headline2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/03/27/late-winter-polar-bear-habitat-2017-vs-2006-and-2011-shows-no-trend/https://polarbearscience.com/wp-content/uploads/2017/03/sea-ice-day-84-march-25-2017_2011_2006-labeled-vertical.jpgSea ice day 84 March 25 2017_2011_2006 labeled verticalhttps://polarbearscience.com/wp-content/uploads/2017/03/march-average-extent-graph-1979-2016_nsidc.pngMarch average extent graph 1979-2016_NSIDChttps://polarbearscience.com/wp-content/uploads/2017/03/polar_bear_male_regehr-photo_march-21-2010_labeled.jpgPolar_Bear_male_Regehr photo_March 21 2010_labeledhttps://polarbearscience.com/wp-content/uploads/2017/03/sea-ice-extent_march-7-2017_nsidc-new.pngSea ice extent_March 7 2017_NSIDC newhttps://polarbearscience.com/wp-content/uploads/2017/03/sea-ice-day-84-march-25-2017_2011_2006-labeled.jpgSea ice day 84 March 25 2017_2011_2006 labeledhttps://polarbearscience.com/wp-content/uploads/2017/03/masie_all_r00_v01_2017084_4km-cropped-14-point-3-mkm2.pngmasie_all_r00_v01_2017084_4km cropped 14 point 3 mkm22024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/03/28/recent-incident-in-foxe-basin-shows-the-danger-of-hungry-polar-bears-in-winter/https://polarbearscience.com/wp-content/uploads/2017/03/ec-pb-protected-areas_old_002op-pb-carte-map_eng_oct-26-2014.gifEC PB protected areas_OLD_002op-pb-carte-map_eng_Oct 26 2014https://polarbearscience.com/wp-content/uploads/2017/03/ivujivik-polar-bear-encounter-plus-headline_nunatsiaqonline-28-march-2017.jpgIvujivik polar bear encounter plus headline_NunatsiaqOnline 28 March 2017https://polarbearscience.com/wp-content/uploads/2017/03/ivujivik-polar-bear-encounter_8-march-2017_nunatsiaqonline-report-28-march.jpgIvujivik polar bear encounter_8 March 2017_NunatsiaqOnline report 28 March2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/04/03/east-coast-crawling-with-polar-bears-since-early-march-thanks-to-the-pack-ice/https://polarbearscience.com/wp-content/uploads/2017/04/newfoundland-east-daily-ice-conc-19-april-2017_cis.gifNewfoundland East daily ice conc 19 April 2017_CIShttps://polarbearscience.com/wp-content/uploads/2017/04/sea-ice-extent-canada-2017-april-22-cis.gifSea ice extent Canada 2017 April 22 CIShttps://polarbearscience.com/wp-content/uploads/2017/04/sea-ice-extent-canada-2017-april-19-cis.gifSea ice extent Canada 2017 April 19 CIShttps://polarbearscience.com/wp-content/uploads/2017/04/parkers-brook-location-on-pistolet-bay.jpgParkers Brook location on Pistolet Bayhttps://polarbearscience.com/wp-content/uploads/2017/04/east-coast-march-april-polar-bear-sightings-2017-v4_22-april_polarbearscience.jpgEast Coast March April polar bear sightings 2017 V4_22 April_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2017/04/east-coast-march-april-polar-bear-sightings-2017-v3_9-april.jpgEast Coast March April polar bear sightings 2017 V3_9 Aprilhttps://polarbearscience.com/wp-content/uploads/2017/04/brookside-southern-nfld-location.jpgBrookside southern Nfld locationhttps://polarbearscience.com/wp-content/uploads/2017/04/sea-ice-canada-2017-april-9-cis.gifSea ice Canada 2017 April 9 CIShttps://polarbearscience.com/wp-content/uploads/2017/04/sea-ice-canada-2017-april-8-cis.gifSea ice Canada 2017 April 8 CIShttps://polarbearscience.com/wp-content/uploads/2017/04/sea-ice-canada-2017-april-7-cis.gifSea ice Canada 2017 April 7 CIS2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/04/09/macleans-blames-global-warming-for-polar-bear-visits-to-newfoundland/https://polarbearscience.com/wp-content/uploads/2017/04/macleans-7-april-2017-polar-bear-headline-with-photo_sized1.jpgMacleans 7 April 2017 polar bear headline with photo_sizedhttps://polarbearscience.com/wp-content/uploads/2017/04/macleans-7-april-2017-polar-bear-headline-with-photo.jpgMacleans 7 April 2017 polar bear headline with photohttps://polarbearscience.com/wp-content/uploads/2017/04/newfoundland-east_same-week-hudson-bay-26-march-1971-2017.pngNewfoundland East_same week Hudson Bay 26 March 1971-2017https://polarbearscience.com/wp-content/uploads/2017/04/labrador-south_same-week-5-march-1971-2017.pngLabrador south_same week 5 March 1971-20172024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/04/10/newfoundland-conservation-officers-right-to-kill-polar-bear-in-hunting-mode/https://polarbearscience.com/wp-content/uploads/2017/04/doug-clark-photo-polar-bears-onshore-in-feb-2013-wapusk-np.jpgDoug Clark photo polar bears onshore in Feb 2013 Wapusk NPhttps://polarbearscience.com/wp-content/uploads/2017/04/bear-onshore-end-feb-2017_cbc-photo-facebook.jpgBear onshore end Feb 2017_CBC photo facebookhttps://polarbearscience.com/wp-content/uploads/2017/04/melrose-nfld-polar-bear-02_2017-april-3_shelly-ryan-shared-photo-cbc1.jpgMelrose nfld Polar Bear 02_2017 April 3_Shelly Ryan shared photo CBChttps://polarbearscience.com/wp-content/uploads/2017/04/catalina-map-and-bear-shot-location-nfld.jpgCatalina map and bear shot location Nfld2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/04/12/global-polar-bear-population-size-is-about-28500-when-updates-are-included/2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/04/20/new-genetics-paper-is-not-about-whether-climate-change-causes-polar-bear-hybrids/https://polarbearscience.com/wp-content/uploads/2017/04/pizzly_andrewderocher_300dpi_2017-paper.jpgpizzly_andrewderocher_300dpi_2017 paperA polar bear X grizzly hybrid, see Kumar et al. 2017. Photo by A. Derocher.https://polarbearscience.com/wp-content/uploads/2017/04/kumar-et-al-2017-hybridization-in-bear-evolution_fig-5.jpgKumar et al 2017 hybridization in bear evolution_fig 5"The scale bar shows divergence times in million years and 95% confidence intervals for divergence times [speciation events] are shown as shadings."https://polarbearscience.com/wp-content/uploads/2017/04/kumar-et-al-2017-hybridization-in-bear-evolution_fig-4.jpgKumar et al 2017 hybridization in bear evolution_fig 42024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/04/21/still-lots-of-east-coast-sea-ice-but-prof-tells-cbc-it-doesnt-bode-well-for-polar-bears/https://polarbearscience.com/wp-content/uploads/2017/04/east-newfoundland-same-week-16-april-1968-2017.pngEast Newfoundland same week 16 April 1968-2017https://polarbearscience.com/wp-content/uploads/2017/04/boats-in-ice-near-twillingate_cbc_19-april-2017.jpgboats-in-ice-near-twillingate_CBC_19 April 2017https://polarbearscience.com/wp-content/uploads/2017/04/twillingate-heavy-ice-20070523_2007-cbc-david-boyd-photo.jpgTwillingate-heavy ice-20070523_2007 CBC David Boyd photohttps://polarbearscience.com/wp-content/uploads/2017/04/sea-ice-extent-canada-2017-april-21-cis.gifSea ice extent Canada 2017 April 21 CIS2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/04/22/sea-ice-off-newfoundland-thickest-ever-yet-another-polar-bear-comes-ashore/https://polarbearscience.com/wp-content/uploads/2017/04/sea-ice-extent-march-average-2012_nsidc.jpgSea ice extent March average 2012_NSIDChttps://polarbearscience.com/wp-content/uploads/2017/04/police_surround_deadbear_the-star_6-april-2012.jpgpolice_surround_deadbear_THE STAR_6 April 2012https://polarbearscience.com/wp-content/uploads/2017/04/sea-ice-extent-canada-2014-march-12_cis.gifSea ice extent Canada 2014 March 12_CIShttps://polarbearscience.com/wp-content/uploads/2017/04/strait-of-belle-isle-pack-ice_april-19-2017_nordik-relais.jpgStrait-of-belle-isle pack ice_April 19 2017_Nordik Relaishttps://polarbearscience.com/wp-content/uploads/2017/04/newfoundland-labrador-sea-ice-19-april-2017-nasa-worldview.jpgNewfoundland Labrador sea ice 19 April 2017 NASA Worldview2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/04/26/experts-vision-of-an-ice-free-summer-is-already-wrong-benefitting-polar-bears/https://polarbearscience.com/wp-content/uploads/2017/04/hamilton-et-al-2014-fig-1-caa-sea-ice-projections.jpgHamilton et al 2014 Fig 1 CAA sea ice projectionshttps://polarbearscience.com/wp-content/uploads/2017/04/archipelago-pb-numbers-added-to-crockford-2017.jpgArchipelago pb numbers added to Crockford 2017https://polarbearscience.com/wp-content/uploads/2017/04/map-mclintockchannel_lg.jpgmap-MClintockChannel_lghttps://polarbearscience.com/wp-content/uploads/2017/04/map-norwegianbay_lg.jpgmap-NorwegianBay_lghttps://polarbearscience.com/wp-content/uploads/2017/04/sept-average-1998_1999-together_nsidc.jpgSept average 1998_1999 together_NSIDChttps://polarbearscience.com/wp-content/uploads/2017/04/heide-jorgensen-et-al-2011-fig1-a_b.jpgHeide-Jorgensen et al 2011 fig1 a_bhttps://polarbearscience.com/wp-content/uploads/2017/04/wang-and-overland-2012-fig-3b-marked.jpgWang and Overland 2012 fig 3b markedhttps://polarbearscience.com/wp-content/uploads/2017/03/sea-ice-extent_sept-average-2008_nsidc-low-res.pngSea ice extent_Sept average 2008_NSIDC low reshttps://polarbearscience.com/wp-content/uploads/2017/03/sea-ice-extent_sept-average-2009_nsidc-low-res.pngSea ice extent_Sept average 2009_NSIDC low reshttps://polarbearscience.com/wp-content/uploads/2017/03/sea-ice-extent_sept-average-2010_nsidc.pngSea ice extent_Sept average 2010_NSIDC2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/05/01/iucn-specialist-group-now-rejects-polar-bear-numbers-it-used-for-2015-iucn-red-list-review/https://polarbearscience.com/wp-content/uploads/2017/04/2015-iucn-red-list-estimates-vs-iucn-pbsg-2017.jpg2015 IUCN Red List estimates vs IUCN PBSG 2017https://polarbearscience.com/wp-content/uploads/2017/04/2014-status-table-updated-jan-2015-with-ice-data-snapshot.jpg2014 status table updated Jan 2015 with ice data snapshothttps://polarbearscience.com/wp-content/uploads/2017/04/2017-population-status-table-subsample-to-gofboothia.jpg2017 population status table subsample to GofBoothiahttps://polarbearscience.com/wp-content/uploads/2017/04/aars-et-al-number-of-females-with-cubs-of-all-ages_to-2016.jpgAars et al Number of females with cubs of all ages_to 2016https://polarbearscience.com/wp-content/uploads/2017/04/aars-et-al-body-condition-of-adult-males-in-spring-1993-2016.jpgAars et al Body condition of adult males in spring 1993-2016https://polarbearscience.com/wp-content/uploads/2017/04/2017-population-status-update-early-march-headline.jpg2017 population status update early March headline2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/05/01/iucn-pbsg-insists-the-2015-barents-sea-polar-bear-count-was-not-an-increase/https://polarbearscience.com/wp-content/uploads/2017/04/svalbard-polar-bear-jon-aars_norsk-polarinstitutt.jpgSvalbard polar bear Jon Aars_Norsk Polarinstitutthttps://polarbearscience.com/wp-content/uploads/2017/04/svalbard-polar-bear_aars-august-2015-np058930_press-release1.jpgSvalbard polar bear_Aars August 2015-NP058930_press 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Canada 2016 May 20 CIShttps://polarbearscience.com/wp-content/uploads/2017/05/sea-ice-canada-2015-may-20_cis.gifSea ice Canada 2015 May 20_CIShttps://polarbearscience.com/wp-content/uploads/2017/05/sea-ice-canada-2017-may-20-cis.gifSea ice Canada 2017 May 20 CIShttps://polarbearscience.com/wp-content/uploads/2017/05/western-arctic-departure-from-normal-same-week-18-may-2015.gifWestern Arctic departure from normal same week 18 May 20152024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/05/26/just-when-i-wasnt-paying-attention-1-million-views-surpassed/https://polarbearscience.com/wp-content/uploads/2017/05/stats-at-26-may-2017-totals_polarbearscience.pngStats at 26 May 2017 totals_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2017/05/stats-at-26-may-2017-total_polarbearscience.pngStats at 26 May 2017 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extent Canada 2016 May 27 CIShttps://polarbearscience.com/wp-content/uploads/2017/05/sea-ice-canada-2017-may-27.gifSea ice Canada 2017 May 272024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/05/29/polar-bear-counts-for-w-hudson-bay-core-area-numbers-are-not-comparable/https://polarbearscience.com/wp-content/uploads/2017/05/masie_all_r10_v01_2011175_4km.pngmasie_all_r10_v01_2011175_4kmhttps://polarbearscience.com/wp-content/uploads/2017/05/hudson-bay-nw-same-week-2-july-1971-2016.pngHudson Bay NW same week 2 July 1971-2016https://polarbearscience.com/wp-content/uploads/2017/05/hudson-bay-nw-same-week-28-may-1971-2016.pngHudson Bay NW same week 28 May 1971-2016https://polarbearscience.com/wp-content/uploads/2017/05/2015-jan-24-pbsg-sea-ice-metrics-example2-bottom-snip.jpg2015 Jan 24 PBSG sea ice metrics example2 bottom sniphttps://polarbearscience.com/wp-content/uploads/2017/05/wapusk-nat-park_hudson-bay_google-maps_w-churchill.jpgWapusk Nat Park_Hudson Bay_Google maps_w 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Telegraph June 5 2017_Ann Peddlehttps://polarbearscience.com/wp-content/uploads/2017/06/newfoundland-east-daily-ice-conc-20-may-2017_cis.gifNewfoundland East daily ice conc 20 May 2017_CIShttps://polarbearscience.com/wp-content/uploads/2017/06/sea-ice-extent-canada-2017-june-5.gifSea ice extent Canada 2017 June 52024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/06/08/breakup-of-sea-ice-on-track-in-canada-as-critical-feeding-period-for-polar-bears-ends/https://polarbearscience.com/wp-content/uploads/2017/06/hudson-bay-nw-same-week_-ice-coverage-4-june-1971-2017.pngHudson Bay NW same week_ ice coverage 4 June 1971-2017https://polarbearscience.com/wp-content/uploads/2017/06/sea-ice-canada-2017-june-8.gifSea ice Canada 2017 June 8https://polarbearscience.com/wp-content/uploads/2017/06/sea-ice-extent-canada-2016-june-8-cis.gifSea ice extent Canada 2016 June 8 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Lab).https://polarbearscience.com/wp-content/uploads/2017/06/beaufort-gyre-video-screencap_21-april-2016_labelled.jpgBeaufort Gyre video screencap_21 April 2016_labelledhttps://polarbearscience.com/wp-content/uploads/2017/06/polar_bear_rubble_ice_mike-lockhart-usgs_8-april-2011.jpgpolar_bear_rubble_ice_Mike Lockhart USGS_8 April 20112024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/06/12/heavy-ice-off-east-coast-2017-caused-by-winds-cold-temperatures-and-icebergs/https://polarbearscience.com/wp-content/uploads/2017/06/drift-of-icebergs-to-newfoundland-ec-2015.jpgDrift of icebergs to Newfoundland EC 2015https://polarbearscience.com/wp-content/uploads/2017/06/ferryland-newfoundland-icebergs-18-april-2017-cbc.jpgFerryland Newfoundland icebergs 18 April 2017 CBChttps://polarbearscience.com/wp-content/uploads/2017/06/east-coast-freeze-up-2017-concentration-weekly_feb-13.gifEast Coast freeze-up 2017 Concentration Weekly_Feb 13https://polarbearscience.com/wp-content/uploads/2017/06/east-coast-iceberg-report_2017-june-13.gifEast Coast iceberg report_2017 June 13https://polarbearscience.com/wp-content/uploads/2017/06/newfoundland-east-daily-ice-stage-of-development-2017_june-12-cis.gifNewfoundland East daily ice stage of development 2017_June 12 CIShttps://polarbearscience.com/wp-content/uploads/2017/06/la-scie_location.jpgLa Scie_locationhttps://polarbearscience.com/wp-content/uploads/2017/06/newfoundland-east-daily-stage-of-developement-1-june-2017_cis.gifNewfoundland East daily stage of developement 1 June 2017_CIShttps://polarbearscience.com/wp-content/uploads/2017/06/twillingate-fisherman-trapped-by-ice-cbc-1-june-2017.jpgTwillingate fisherman trapped by ice CBC 1 June 2017https://polarbearscience.com/wp-content/uploads/2017/06/newfoundland-sea-ice-off-ccg-icebreaker-pearkes_cbc-26-may-2017.jpgNewfoundland sea ice off CCG icebreaker Pearkes_CBC 26 May 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graph_NIShttps://polarbearscience.com/wp-content/uploads/2017/06/svalbard-ice-extent-2017-june-24_nis.pngSvalbard ice extent 2017 June 24_NIS2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/07/10/polar-bears-of-w-hudson-bay-utilizing-a-substantial-patch-of-thick-first-year-ice/https://polarbearscience.com/wp-content/uploads/2017/07/hudson-bay-breakup-july-10-2015_cis.gifHudson Bay breakup July 10 2015_CIShttps://polarbearscience.com/wp-content/uploads/2017/07/sea-ice-extent-canada-2016-july-10_cis.gifSea ice extent Canada 2016 July 10_CIShttps://polarbearscience.com/wp-content/uploads/2017/07/sea-ice-extent-canada-2014-july-10-cis.gifSea ice extent Canada 2014 July 10 CIShttps://polarbearscience.com/wp-content/uploads/2017/07/sea-ice-canada-2017-july-10.gifSea ice Canada 2017 July 10https://polarbearscience.com/wp-content/uploads/2017/07/sea-ice-canada-2017-july-7.gifSea ice Canada 2017 July 7https://polarbearscience.com/wp-content/uploads/2017/07/sea-ice-canada-2017-july-91.gifSea ice Canada 2017 July 9https://polarbearscience.com/wp-content/uploads/2017/07/stirling-et-al-2004-hb-ice-and-boundaries-sm.jpgStirling et al 2004 HB ice and boundaries smhttps://polarbearscience.com/wp-content/uploads/2017/07/cherry-et-al-2013-fig-2-marked.jpgCherry et al 2013 fig 2 markedhttps://polarbearscience.com/wp-content/uploads/2017/07/hudson-bay-weekly-ice-stage-of-development-2017-july-3-e1499632457408.pngHudson Bay weekly ice stage of development 2017 July 3https://polarbearscience.com/wp-content/uploads/2017/07/sea-ice-canada-2017-july-9.gifSea ice Canada 2017 July 92024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/07/12/polar-bear-attacks-are-extremely-rare-says-new-study-but-the-data-is-incomplete/2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/07/14/abrupt-summer-sea-ice-decline-has-not-affected-polar-bear-numbers-as-predicted/https://polarbearscience.com/wp-content/uploads/2017/07/global-pb-population-size-sea-ice-2017-july-polarbearscience1.jpgGlobal pb population size sea ice 2017 July PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2017/07/sea-ice-at-lgm_vs-today_polarbearscience-14-july-2017.jpgSea ice at LGM_vs today_PolarBearScience 14 July 20172024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/07/19/problem-polar-bears-of-churchill-first-report-of-the-season-similar-to-2016/https://polarbearscience.com/wp-content/uploads/2017/07/hudson-bay-weekly-ice-concentration-2017-july-17-e1500523557146.pngHudson Bay weekly ice concentration 2017 July 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312024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/08/31/video-death-of-a-climate-icon-the-polar-bears-demise-as-a-useful-poster-child/https://polarbearscience.com/wp-content/uploads/2017/08/crockford-2017_slide-15-screencap.jpgCrockford 2017_Slide 15 screencaphttps://polarbearscience.com/wp-content/uploads/2017/08/crockford-2017-sea-ice-graphic.jpgCrockford 2017 sea ice graphichttps://polarbearscience.com/wp-content/uploads/2017/08/death-of-a-climate-icon_title-shot_31-aug-2017.jpgDeath of a Climate Icon_title shot_31 Aug 20172024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/09/10/problem-bear-reports-confirm-churchill-polar-bears-are-in-excellent-condition/https://polarbearscience.com/wp-content/uploads/2017/09/2015-sept-7-13_at-sept-14.jpg2015 Sept 7-13_at Sept 14https://polarbearscience.com/wp-content/uploads/2017/09/2016-aug-22-28_week-7.jpg2016 Aug 22-28_week 7https://polarbearscience.com/wp-content/uploads/2017/09/churchill-pb-reports_week-7_-aug-21-27_2017_aug-28.jpgChurchill PB reports_week 7_ Aug 21-27_2017_Aug 28https://polarbearscience.com/wp-content/uploads/2017/09/churchill-pb-reports_week-8_-aug-28-to-sept3_sept7-2017_possible-typo.jpgChurchill PB reports_week 8_ Aug 28 to Sept3_Sept7 2017_possible typo2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/09/13/problem-polar-bears-in-churchill-at-this-date-show-2017-less-than-2016-and-2015/https://polarbearscience.com/wp-content/uploads/2017/09/2017-week-9-sept-4-11-may-be-typo.jpg2017 week 9 Sept 4-11 may be typohttps://polarbearscience.com/wp-content/uploads/2017/09/2016-sept-5-11_week-9-e1505276695822.jpg2016 Sept 5-11_week 9https://polarbearscience.com/wp-content/uploads/2017/09/2015-sept-7-13_at-sept-141-e1505276721938.jpg2015 Sept 7-13_at Sept 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missinghttps://polarbearscience.com/wp-content/uploads/2017/11/2016-dec-5-11_week-22_week-11-missing.jpg2016 Dec 5-11_week 22_week 11 missinghttps://polarbearscience.com/wp-content/uploads/2017/11/sea-ice-extent-canada-2016-dec-7_cis-pbs-leaving-churchill-for-the-ice.gifSea ice extent Canada 2016 Dec 7_CIS PBs leaving Churchill for the icehttps://polarbearscience.com/wp-content/uploads/2017/11/sea-ice-extent-canada-2016-nov-2_cis.gifSea ice extent Canada 2016 Nov 2_CIShttps://polarbearscience.com/wp-content/uploads/2017/11/canadian-arctic-nov-2-2015_cis.gifCanadian Arctic Nov 2 2015_CIShttps://polarbearscience.com/wp-content/uploads/2017/11/sea-ice-canada-2017-nov-2.gifSea ice Canada 2017 Nov 2https://polarbearscience.com/wp-content/uploads/2017/11/hudson-bay-north-daily-ice-stage-of-development-2017_nov-1.gifHudson Bay North daily ice stage of development 2017_Nov 1https://polarbearscience.com/wp-content/uploads/2017/11/hudson-bay-weekly-departure-from-normal-2017-oct-30.gifHudson Bay weekly departure from normal 2017 Oct 302024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/11/05/scientists-and-media-continue-to-spread-misinformation-about-polar-bears-walrus/https://polarbearscience.com/wp-content/uploads/2017/11/walrus_2010_e_chukchi_sea_haulout_sm.jpgwalrus_2010_E_Chukchi_Sea_haulout_smhttps://polarbearscience.com/wp-content/uploads/2017/11/oakley-et-al-2012-walrus-fig3.pngOakley et al 2012 walrus fig3https://polarbearscience.com/wp-content/uploads/2017/11/hudson-bay-north-daily-ice-stage-of-development-2017_nov-5.gifHudson Bay North daily ice stage of development 2017_Nov 5https://polarbearscience.com/wp-content/uploads/2017/11/churchill-polar-bear-and-walrus-20171.jpgChurchill polar bear and walrus 2017https://polarbearscience.com/wp-content/uploads/2017/11/ec_polarbearstatus_and-trends_2010-2014-mapscanada_oct-26-2014.jpgEC_PolarBearStatus_and Trends_2010-2014 MapsCanada_Oct 26 20142024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/11/08/experts-talk-of-their-bleak-future-w-hudson-bay-polar-bears-get-earliest-freezeup-in-decades/https://polarbearscience.com/wp-content/uploads/2017/11/hudson-bay-freeze-up_2013-northern-hudson-bay-nov-13.gifHudson Bay freeze-up_2013 Northern Hudson Bay Nov 13https://polarbearscience.com/wp-content/uploads/2017/11/hudson-bay-freeze-up-ice-development_nov-16-2014.gifHudson Bay freeze-up ice development_Nov 16 2014https://polarbearscience.com/wp-content/uploads/2017/11/hudson-bay-freeze-up-2016-weekly_dec-5.gifHudson Bay freeze-up 2016 Weekly_Dec 5https://polarbearscience.com/wp-content/uploads/2017/11/sea-ice-extent-canada-2016-dec-7_cis-pbs-leaving-churchill-for-the-ice1.gifSea ice extent Canada 2016 Dec 7_CIS PBs leaving Churchill for the icehttps://polarbearscience.com/wp-content/uploads/2017/11/hudson-bay-north-daily-ice-concentration-2017_nov-8.gifHudson Bay North daily ice concentration 2017_Nov 8https://polarbearscience.com/wp-content/uploads/2017/11/polar-bear-on-the-sea-ice_churchill_8-nov-2017_explore-dot-org-cam-my-photo-3.jpgPolar bear on the sea ice_Churchill_8 Nov 2017_Explore dot org cam my photo 3https://polarbearscience.com/wp-content/uploads/2017/11/polar-bear-on-the-sea-ice_churchill_8-nov-2017_explore-dot-org-cam-my-photo-2.jpgPolar bear on the sea ice_Churchill_8 Nov 2017_Explore dot org cam my photo 2https://polarbearscience.com/wp-content/uploads/2017/11/hudson-bay-north-2004-concentration-nov-8.gifHudson Bay North 2004 concentration Nov 8https://polarbearscience.com/wp-content/uploads/2017/11/hudson-bay-north-2006-concentration-nov-8.gifHudson Bay North 2006 concentration Nov 8https://polarbearscience.com/wp-content/uploads/2017/11/hudson-bay-north-2008-concentration-nov-8.gifHudson Bay North 2008 concentration Nov 82024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/11/22/w-hudson-bay-polar-bear-season-wrap-up-problem-bear-stats-sea-ice-vs-2016/https://polarbearscience.com/wp-content/uploads/2017/11/churchill-pb-reports_week-19_20-26-nov-2017_last-of-the-season-e1511849359382.jpgChurchill PB reports_week 19_20-26 Nov 2017_last of the seasonhttps://polarbearscience.com/wp-content/uploads/2017/11/sea-ice-canada-2017-nov-23.gifSea ice Canada 2017 Nov 23https://polarbearscience.com/wp-content/uploads/2017/11/2015-nov-16_22_at-nov-231-e1511417368638.jpg2015 Nov 16_22_at Nov 23https://polarbearscience.com/wp-content/uploads/2017/11/hudson-bay-weekly-concentration-2016-dec-5.gifHudson Bay weekly concentration 2016 Dec 5https://polarbearscience.com/wp-content/uploads/2017/11/hudson-bay-weekly-concentration-2016-dec-12.gifHudson Bay weekly concentration 2016 Dec 12https://polarbearscience.com/wp-content/uploads/2017/11/hudson-bay-weekly-departure-from-normal-2017-nov-20.gifHudson Bay weekly departure from normal 2017 Nov 20https://polarbearscience.com/wp-content/uploads/2017/11/hudson-bay-weekly-ice-stage-of-development-2017-nov-20.gifHudson Bay weekly ice stage of development 2017 Nov 20https://polarbearscience.com/wp-content/uploads/2017/11/bear-stats-dec-12-2016.jpgBear Stats Dec 12 2016https://polarbearscience.com/wp-content/uploads/2017/11/churchill-polar-bear-alert-report-nov-13-19_nov-20-released-e1511377414918.jpgChurchill Polar bear alert report Nov 13-19_Nov 20 released2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/11/27/published-essay-the-conservation-fiasco-that-is-the-esa-listing-of-polar-bears/https://polarbearscience.com/wp-content/uploads/2017/11/conservation-fiasco_lead-photo_winter-2017-range.jpgConservation Fiasco_lead photo_WINTER 2017 RANGE2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/12/05/retraction-request-to-bioscience-foia-emails-document-another-harsh-criticism-of-amstrups-2007-polar-bear-model/https://polarbearscience.com/wp-content/uploads/2017/12/polar_bear_usfws_no-date_sm.jpgpolar_bear_usfws_no date_smhttps://polarbearscience.com/wp-content/uploads/2017/12/polar-bear-on-arctic-ocean-21-august-2009-patrick-kelly-us-coast-guard.jpgPolar BearA polar bear walks on the Arctic Ocean ice Aug. 21, 2009.https://polarbearscience.com/wp-content/uploads/2017/12/wiig-to-laidre_9-may-2014-follow-up-to-lunches-with-resit_first-part_redacted-highlighted1.jpgWiig to Laidre_9 May 2014 follow up to Lunches with Resit_first part_redacted highlightedhttps://polarbearscience.com/wp-content/uploads/2017/12/laidre-to-wiig_16-may-2014-follow-up-to-letter-to-steve.jpgLaidre to Wiig_16 May 2014 follow up to letter to Stevehttps://polarbearscience.com/wp-content/uploads/2017/12/wiig-to-steve_16-may-2014-letter-to-steve-first-part.jpgWiig to Steve_16 May 2014 letter to Steve first parthttps://polarbearscience.com/wp-content/uploads/2017/12/wiig-to-laidre-and-reghr_16-may-2014-preparing-to-tell-steve.jpgWiig to Laidre and Reghr_16 May 2014 preparing to tell Stevehttps://polarbearscience.com/wp-content/uploads/2017/12/wiig-to-laidre-and-reghr_10-may-2014-data-deficient-would-be-like-a-catastrophe.jpgWiig to Laidre and Reghr_10 May 2014 data deficient would be like a catastrophehttps://polarbearscience.com/wp-content/uploads/2017/12/laidre-to-wiig_8-may-2014-lunch-with-resit.jpgLaidre to Wiig_8 May 2014 Lunch with Resithttps://polarbearscience.com/wp-content/uploads/2017/12/wiig-to-laidre_9-may-2014-follow-up-to-lunches-with-resit_first-part.jpgWiig to Laidre_9 May 2014 follow up to Lunches with Resit_first parthttps://polarbearscience.com/wp-content/uploads/2017/12/wiig-to-laidre_7-may-2014-before-lunch-with-resit.jpgWiig to Laidre_7 May 2014 before Lunch with Resit2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/12/09/one-starving-bear-is-not-evidence-of-climate-change-despite-gruesome-photos/https://polarbearscience.com/wp-content/uploads/2017/12/baffin-island-starving-pb-headline_globalnews_8-dec-2017.jpgBaffin Island starving pb headline_GlobalNews_8 Dec 20172024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/12/11/bioscience-paper-and-starving-polar-bear-follow-up/2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/12/16/bioscience-editor-tells-journalist-he-wont-retract-harvey-paper/2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2017/12/18/two-technical-critiques-of-the-harvey-et-al-polar-bear-bioscience-attack-paper/https://polarbearscience.com/wp-content/uploads/2017/12/mcintyre-guest-blog-on-harvey-paper-photo-led_romanm-18-dec-2017.jpgMcIntyre guest blog on Harvey paper photo led_RomanM 18 Dec 20172024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2018/01/15/science-optimism-and-the-resilience-of-polar-bears-in-an-ever-changing-arctic/https://polarbearscience.com/wp-content/uploads/2017/04/female-with-cub_shutterstock_polarbearscience1.jpgFemale with cub_Shutterstock_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2017/04/female-with-cub_shutterstock_polarbearscience.jpgFemale with cub_Shutterstock_PolarBearScience2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2018/05/02/polar-bear-numbers-margins-of-error-consequences-for-conservation-status/https://polarbearscience.com/wp-content/uploads/2017/11/aars-et-al-2017-table-3.jpgAars et al. 2017 Table 3https://polarbearscience.com/wp-content/uploads/2017/05/polar_bear_biologist_usfws_working_with_a_bear_oct-24-2001-amstrup-photo.jpgPolar_Bear_Biologist_USFWS_working_with_a_Bear_Oct 24 2001 Amstrup photohttps://polarbearscience.com/wp-content/uploads/2017/05/ontario-whb-polarbear_obbard-photo_ontario-gov-website.jpgOntario WHB polarbear_Obbard photo_Ontario gov website2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2018/08/27/facts-contradict-predictions-that-chukchi-sea-polar-bears-should-be-in-trouble/https://polarbearscience.com/wp-content/uploads/2018/08/chukchi-sea-polar-bear-arctic_early-august-2018_a-khan-nsidc-e1547829613329.jpgChukchi Sea polar bear Arctic_early August 2018_A Khan NSIDCChukchi Sea polar bear, early August 2018. A Khan, NSIDChttps://polarbearscience.com/wp-content/uploads/2018/08/regher-et-al-2016-fig-2-wh-bay-ice-decline.jpgRegher et al. 2016 fig 2 Wh Bay ice declinehttps://polarbearscience.com/wp-content/uploads/2018/08/regher-et-al-2016-fig-2-barents-and-chukchi-sea-ice-decline-e1533448950408.jpgRegher et al. 2016 fig 2 Barents and Chukchi Sea ice declinehttps://polarbearscience.com/wp-content/uploads/2018/08/masie_all_zoom_4km-2017-aug-7.pngmasie_all_zoom_4km 2017 Aug 7https://polarbearscience.com/wp-content/uploads/2018/08/masie_all_zoom_4km-2018-aug-2.pngmasie_all_zoom_4km 2018 Aug 2https://polarbearscience.com/wp-content/uploads/2018/06/wrangel-island-polar-bear-with-cubs-2015-news-story.jpgWrangel Island polar bear with cubs 2015 news storyFrom "Military bases to open on Wrangel Island and Chukotka" 22 October 2015. https://polarbearscience.com/wp-content/uploads/2018/06/masie_all_zoom_4km-2018-june-16.pngmasie_all_zoom_4km 2018 June 16https://polarbearscience.com/wp-content/uploads/2017/11/masie_all_zoom_4km-2017-oct-28.pngmasie_all_zoom_4km 2017 Oct 28https://polarbearscience.com/wp-content/uploads/2017/11/chukchi-bering-sea_seaiceconc_nws_asip_2017-nov-19_noaa.jpgChukchi Bering Sea_SeaIceConc_NWS_ASIP_2017 Nov 19_NOAA2024-10-28T17:27:52+00:00monthlyhttps://polarbearscience.com/2016/02/11/zoos-use-polar-bears-to-spur-action-on-climate-change-not-to-save-them/https://polarbearscience.com/wp-content/uploads/2016/02/polar-bears-stanley-park-zoo_crockford-1970s_web.jpgPolar bears Stanley park zoo_Crockford 1970s_webhttps://polarbearscience.com/wp-content/uploads/2016/02/stanleyparkbears_zps5f8bacea-geocaching-story.jpgStanleyParkBears_zps5f8bacea geocaching storyhttps://polarbearscience.com/wp-content/uploads/2016/02/storm_assiniboine-zoo_april-21-2014.jpgStorm_Assiniboine Zoo_April 21 2014https://polarbearscience.com/wp-content/uploads/2016/02/african_lion_3-wikipedia.jpgAfrican_Lion_3 wikipediahttps://polarbearscience.com/wp-content/uploads/2016/02/aza-climate-change-education-cover.jpgAZA Climate change education coverhttps://polarbearscience.com/wp-content/uploads/2016/02/zoo-bear-at-columbus_after-birth-in-november-2015.jpgZoo bear at Columbus_after birth in November 20152024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/02/14/polar-bear-capital-of-the-world-stuck-between-fear-mongering-and-science/https://polarbearscience.com/wp-content/uploads/2016/02/amstrup-vs-iucn-science_feb-14-2016_polarbearscience.jpgAmstrup vs IUCN science_Feb 14 2016_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2016/02/churchill-wapusk-nat-park_parks-canada.gifChurchill Wapusk Nat Park_Parks Canadahttps://polarbearscience.com/wp-content/uploads/2016/02/churchill-caught-between-pbi-and-iucn-science_14-feb-2016_polarbearscience.jpgChurchill caught between PBI and IUCN science_14 Feb 2016_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2016/02/churchill-town-website-screen-cap_feb-14-2016.jpgChurchill Town website screen cap_Feb 14 20162024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/02/18/polar-bear-habitat-mid-winter-update/https://polarbearscience.com/wp-content/uploads/2016/02/east-coast-gulf-of-st-lawrence-same-week-12-feb-1968-2016.pngEast Coast Gulf of St Lawrence same week 12 Feb 1968-2016https://polarbearscience.com/wp-content/uploads/2016/02/davis-strait-s-labrador-same-week-12-feb-1969-2016.pngDavis Strait S Labrador same week 12 Feb 1969-2016https://polarbearscience.com/wp-content/uploads/2016/02/davis-strait-east-newfoundland-same-week-12-feb-1968-2016.pngDavis Strait East Newfoundland same week 12 Feb 1968-2016https://polarbearscience.com/wp-content/uploads/2016/02/east-coast-regional-same-week-12-feb-1968-2016.pngEast Coast Regional same week 12 Feb 1968-2016https://polarbearscience.com/wp-content/uploads/2016/02/sea-ice-extent-canada-2016-feb-18-cis.gifSea ice extent Canada 2016 Feb 18 CIShttps://polarbearscience.com/wp-content/uploads/2016/02/sea_ice_near_coast_of_labrador_-b_wikimedia_sm_26-march-2007.jpgSea_ice_near_coast_of_Labrador_-b_wikimedia_sm_26 March 2007https://polarbearscience.com/wp-content/uploads/2016/02/arctic-sea-ice-thickness_2016-feb-17-nrl.gifArctic sea ice thickness_2016 Feb 17 NRLhttps://polarbearscience.com/wp-content/uploads/2016/02/sea-ice-extent-2016-feb-17-nsidc_sm-wuwt.pngSea ice extent 2016 Feb 17 NSIDC_sm WUWT2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/02/18/only-the-gullible-still-buying-polar-bear-died-of-climate-change-nonsense/https://polarbearscience.com/wp-content/uploads/2016/02/daily-mail-screencap_polar-bear-that-died-of-climate-change_feb-18-2016.jpgDaily Mail screencap_polar bear that died of climate change_Feb 18 20162024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/02/19/horse-killed-by-a-polar-bear-in-southern-greenland-this-week/https://polarbearscience.com/wp-content/uploads/2016/02/rode-and-regehr-2010_chukchi_report2010_fig1_triplets_labelled_cropped.jpgRode and Regehr 2010_Chukchi_report2010_Fig1_triplets_labelled_cropped2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/02/22/spring-sea-ice-prediction-by-cis-for-atlantic-canada-2016-vs-observations/https://polarbearscience.com/wp-content/uploads/2016/02/gulf-of-st-lawrence-ice_feb-20-2013_nasa-earthobservatory_sm-w-labels.jpgGulf of St Lawrence ice_Feb 20 2013_NASA EarthObservatory_sm w labelshttps://polarbearscience.com/wp-content/uploads/2016/02/gulf-of-st-lawrence-ice-conc-20-feb-2016_cis.gifGulf of St Lawrence ice conc 20 Feb 2016_CIShttps://polarbearscience.com/wp-content/uploads/2016/02/newfoundland-ne-ice-conc-19-feb-2016_cis.gifNewfoundland NE ice conc 19 Feb 2016_CIShttps://polarbearscience.com/wp-content/uploads/2016/02/sea-ice-extent-canada-2016-feb-19-cis.gifSea ice extent Canada 2016 Feb 19 CIS2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/02/23/cannibalism-video-shot-in-2015-did-not-involve-a-starving-polar-bear/https://polarbearscience.com/wp-content/uploads/2016/02/national-geographic-2015-cruise-cannibalism-video-screencap_feb-23-2016.jpgNational Geographic 2015 cruise Cannibalism video screencap_Feb 23 20162024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/02/24/harp-seal-most-abundant-arctic-seal-is-an-undervalued-polar-bear-prey-species/https://polarbearscience.com/wp-content/uploads/2016/02/sea-ice-extent-canada-2016-feb-22-cis.gifSea ice extent Canada 2016 Feb 22 CIShttps://polarbearscience.com/wp-content/uploads/2016/02/newfoundland_same-week-feb-12_1969_2015-cis-stage-of-devel.pngNewfoundland_same week Feb 12_1969_2015 CIS stage of develFigure 8. Ice coverage by stage of development for the week of 12 March for 1969 to 2015 off Newfoundland. Canadian Ice Service.https://polarbearscience.com/wp-content/uploads/2016/02/labrador-south_same-week-mar-12_1969_2015-cis-stage-of-devel.pngLabrador south_same week Mar 12_1969_2015 CIS stage of develFigure 7. Ice coverage by stage of development for the week of 12 March for 1969 to 2015. Canadian Ice Service.https://polarbearscience.com/wp-content/uploads/2016/02/gulf-of-st-lawrence_same-week-mar-5_1969_2015-cis-stage-of-devel.pngGulf of St Lawrence_same week Mar 5_1969_2015 CIS stage of develFigure 6. Ice coverage by stage of development for the week of 5 March for 1969 to 2015. Canadian Ice Service.https://polarbearscience.com/wp-content/uploads/2016/02/harp-seal-status-dfo-2014-fig-7-pop_cropped.jpgHarp seal status DFO 2014 fig 7 pop_croppedFigure 5. From the DFO 2014 harp seal assessment: Estimates of total population for Northwest Atlantic harp seals (±95%CI) 1952-2014 (left Y-axis and blue lines), and reported harvests for 1952-2013 (right Y-axis and single purple line). Estimated population at 2014 was therefore ~7.4 million animals (range 6.5-8.3m).https://polarbearscience.com/wp-content/uploads/2016/02/sergeant-1991-moulting-harp-seals-at-the-front-25-april-1976-sm.jpgSergeant 1991 moulting harp seals at the Front 25 April 1976 smFigure 4. From Sergeant 1991, a photo of harp seals in moult at the Front, late April 1976 (when populations were much lower than today), after pups had been weaned.https://polarbearscience.com/wp-content/uploads/2016/02/sergeant-1991-fig-20_pg-26_stages-of-growth-and-moult-of-juvenile-harps_sm.jpgSergeant 1991 fig 20_pg 26_stages of growth and moult of juvenile harps_smFigure 3. From Sergeant 1991 (pg. 26): the stages of harp seal pup coat changes from birth to post-weaning. Note the relatively thin condition of the newborn pup (a) and the “cradle” that the fat whitecoat makes in the sea ice (b).https://polarbearscience.com/wp-content/uploads/2016/02/harp_seal_2008_male_wikepedia-sm.jpgHarp_seal_2008_male_wikepedia smFigure 2. Harp seal male, aka saddleback (female ‘harp’ pattern is less distinct).https://polarbearscience.com/wp-content/uploads/2016/02/harp-and-hooded-seal-pupping-areas-and-distribution_stenson-2014-fig-1.jpgHarp and hooded seal pupping areas and distribution_Stenson 2014 fig 1Figure 1. From Garry Stenson’s (2014) report on the status of harp and hooded seals in the North Atlantic, showing the total range and breeding/pupping grounds of harp seals (the much larger hooded seal (Crystophora cristata) also uses the Front and West Ice areas for pupping (late March), breeding and moulting – the young hoods are also eaten by polar bears in spring).https://polarbearscience.com/wp-content/uploads/2016/02/harp-seal-pup_dfo-newfoundland.jpgHarp seal pup_DFO Newfoundland2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/02/25/ten-dire-polar-bear-predictions-that-have-failed-as-global-population-hits-22-31k/https://polarbearscience.com/wp-content/uploads/2016/02/rode-and-regehr-2010_chukchi_report2010_triplets-redone-png.pngRode and Regehr 2010_Chukchi_report2010_triplets redone PNGhttps://polarbearscience.com/wp-content/uploads/2016/02/polarbearlg_usgs.jpgPolarBearLG_USGS2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/02/26/polar-bear-habitat-update-labrador-sea-ice-highest-in-20-years/https://polarbearscience.com/wp-content/uploads/2016/02/sea-ice-extent-canada-2016-feb-26-cis.gifSea ice extent Canada 2016 Feb 26 CIShttps://polarbearscience.com/wp-content/uploads/2016/02/barents-sea-ice-extent-2016-feb-25_nis.pngBarents Sea ice extent 2016 Feb 25_NIShttps://polarbearscience.com/wp-content/uploads/2016/02/barents-sea-ice-extent-2012-feb-24_nis.jpgBarents Sea ice extent 2012 Feb 24_NIShttps://polarbearscience.com/wp-content/uploads/2016/02/sea-ice-extent-2016-feb-24-nsidc_sm-wuwt.pngSea ice extent 2016 Feb 24 NSIDC_sm WUWThttps://polarbearscience.com/wp-content/uploads/2016/02/sea-ice-extent-canada-2016-feb-25-cis.gifSea ice extent Canada 2016 Feb 25 CIShttps://polarbearscience.com/wp-content/uploads/2016/02/davis-strait-east-newfoundland-same-week-19-feb-1969-2016.pngDavis Strait East Newfoundland same week 19 Feb 1969-2016https://polarbearscience.com/wp-content/uploads/2016/02/davis-strait-s-labrador-same-week-19-feb-1969-2016.pngDavis Strait S Labrador same week 19 Feb 1969-2016https://polarbearscience.com/wp-content/uploads/2016/02/sea_ice_near_coast_of_labrador_-a_wikipedia-sm.jpgSea_ice_near_coast_of_Labrador_-a_wikipedia sm2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/02/26/w-hudson-bay-polar-bear-numbers-declined-then-stabilized-says-new-paper/https://polarbearscience.com/wp-content/uploads/2016/02/lunn-et-al-2016-fig-6.jpgLunn et al 2016 Fig 6This is Fig. 6 from Lunn et al. 2016 showing the polar bear population for WHB showing the primary decline occurred between 1987 and 1992 (poor ice conditions for ringed seals) but with no declining trend since 2004. https://polarbearscience.com/wp-content/uploads/2016/02/lunn-et-al-2016-fig-1.jpgLunn et al 2016 Fig 1This study area map is Figure 1 from Lunn et al. 2016. The 2011 mark-recapture study (Lunn et al. 2013, 2014) did not include bears from Areas A or D, and only a few from Area B. The 2011 aerial survey (Stapleton et al. 2014) covered Areas A-D. This is why the estimate of 1030 from the aerial survey is considered the most accurate assessment.2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/02/27/biggest-threat-to-polar-bears-reconsidered/https://polarbearscience.com/wp-content/uploads/2016/02/sea-ice-anomaly_march-vs-sept-fig4-2-perovich.pngSea ice anomaly_March vs Sept fig4.2-perovichhttps://polarbearscience.com/wp-content/uploads/2016/02/chukchi-beaufort-locations_polarbearscience_sm.jpgChukchi Beaufort locations_PolarBearScience_smhttps://polarbearscience.com/wp-content/uploads/2016/02/natural-ice_snow-variation-and-polar-bears_model_polarbearsciencefeb-20-2016.jpgNatural ice_snow variation and polar bears_model_PolarBearScienceFeb 20 20162024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/02/29/more-churchill-polar-bear-captures-due-to-increased-vigilance-not-global-warming/https://polarbearscience.com/wp-content/uploads/2016/02/june-2015-nsidc.jpgJune 2015 NSIDChttps://polarbearscience.com/wp-content/uploads/2016/02/june-1990-nsidc.jpgJune 1990 NSIDChttps://polarbearscience.com/wp-content/uploads/2016/02/june-2010-nsidc.jpgJune 2010 NSIDChttps://polarbearscience.com/wp-content/uploads/2016/02/hudson-bay-nw-same-week-18-june-1971-2015.pngHudson Bay NW same week 18 June 1971-2015https://polarbearscience.com/wp-content/uploads/2016/02/ec_polarbearstatusmapcanada_oct-26-2014_direct.jpgEC_PolarBearStatusMapCanada_Oct 26 2014_directhttps://polarbearscience.com/wp-content/uploads/2016/02/churchill-polar-bear-encounters-up-in-2015_cbc-headline-feb-28-2016.jpgChurchill polar bear encounters up in 2015_CBC headline Feb 28 20162024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/03/08/worrywart-biologists-fuel-media-fearmongering-over-winter-sea-ice-levels/https://polarbearscience.com/wp-content/uploads/2016/03/sea-ice-extent-2016-march-7-nsidc_sm-wuwt.pngSea ice extent 2016 March 7 NSIDC_sm WUWThttps://polarbearscience.com/wp-content/uploads/2016/03/sea-ice-extent-canada-2016-march-8-cis.gifSea ice extent Canada 2016 March 8 CIShttps://polarbearscience.com/wp-content/uploads/2016/03/harp-sea-newborn_wikipedia.jpgHarp sea newborn_wikipediahttps://polarbearscience.com/wp-content/uploads/2016/03/pb_male-on-ice_regehr-usfws_march-2010_labeled.jpgPB_male on ice_Regehr USFWS_March 2010_labeledhttps://polarbearscience.com/wp-content/uploads/2016/03/sea-ice-extent-2015-june-29_label-wuwt.pngSea ice extent 2015 June 29_label WUWThttps://polarbearscience.com/wp-content/uploads/2016/03/sea-ice-at-march-6_2016-vs-2015-nsidc-interactive.jpgSea ice at March 6_2016 vs 2015 NSIDC interactivehttps://polarbearscience.com/wp-content/uploads/2016/03/gulf-of-st-lawrence-ice_feb-20-2013_nasa-earthobservatory_sm-w-labels.jpgGulf of St Lawrence ice_Feb 20 2013_NASA EarthObservatory_sm w labelsSea ice at 20 February 2013, courtesy NASA Earth Observatoryhttps://polarbearscience.com/wp-content/uploads/2016/03/gulf-st-lawrence-ice-conc-7-march-2016_cis.gifGulf St Lawrence ice conc 7 March 2016_CIS2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/03/13/a-new-count-planned-for-southern-beaufort-polar-bears/2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/03/15/challenging-alaska-polar-bear-research-sound-bites-and-bewildering-esa-status/https://polarbearscience.com/wp-content/uploads/2016/03/amstrup-et-al-2005_fig-1-map-of-cs_sb_nb-boundaries.jpgAmstrup et al 2005_Fig 1 map of CS_SB_NB boundarieshttps://polarbearscience.com/wp-content/uploads/2016/03/beaufort-sea-male-polar-bear-usgs_2005-amstrup-photo.jpgBeaufort Sea male polar bear USGS_2005 Amstrup photo2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/03/19/polar-bears-onshore-in-winter-will-more-bears-mean-more-deadly-attacks/https://polarbearscience.com/wp-content/uploads/2016/03/chukotka_berengia_present_day-wikipedia.pngChukotka_Berengia_present_day wikipediahttps://polarbearscience.com/wp-content/uploads/2016/03/greenland_ice_sheet_amsl_thickness_map-en_wikipedia-sm.pngGreenland_ice_sheet_AMSL_thickness_map-en_wikipedia smhttps://polarbearscience.com/wp-content/uploads/2016/03/svalbard-wikipedia.pngSvalbard wikipediahttps://polarbearscience.com/wp-content/uploads/2016/03/feb-1979-nsidc.jpgFeb 1979 NSIDChttps://polarbearscience.com/wp-content/uploads/2016/03/ivujivik-location_google-maps.jpgIvujivik location_google mapshttps://polarbearscience.com/wp-content/uploads/2016/03/pelly-bay_nunavut-location.jpgPelly Bay_Nunavut locationhttps://polarbearscience.com/wp-content/uploads/2016/03/nunavut_in_canada_wikipedia.pngNunavut_in_Canada_wikipediahttps://polarbearscience.com/wp-content/uploads/2016/03/northwest_territories_wikipedia.pngNorthwest_Territories_Wikipediahttps://polarbearscience.com/wp-content/uploads/2016/03/whale-cove-whb_google-maps1.jpgWhale Cove WHB_Google mapshttps://polarbearscience.com/wp-content/uploads/2016/03/doug-clark-photo-polar-bears-onshore-in-feb-2013-wapusk-np1.jpgDoug Clark photo polar bears onshore in Feb 2013 Wapusk NP2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/03/23/condition-of-s-hudson-bay-polar-bears-varies-with-freeze-up-only-says-new-study/https://polarbearscience.com/wp-content/uploads/2016/03/canadian-arctic-nov-28-2015_cis.gifCanadian Arctic Nov 28 2015_CIShttps://polarbearscience.com/wp-content/uploads/2016/03/obbard-et-al-2016-fig-4.jpgObbard et al 2016 Fig 4https://polarbearscience.com/wp-content/uploads/2016/03/obbard-et-al-2016-fig-2.jpgObbard et al 2016 Fig 22024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/03/31/late-winter-surge-in-sea-ice-habitat-and-the-resilience-of-svalbard-polar-bears/https://polarbearscience.com/wp-content/uploads/2016/03/barents-sea-ice-2015-dec-28_nis.pngBarents Sea ice 2015 Dec 28_NIShttps://polarbearscience.com/wp-content/uploads/2016/03/barents-sea-ice-2012-dec-28_nis.jpgBarents Sea ice 2012 Dec 28_NIShttps://polarbearscience.com/wp-content/uploads/2016/03/svalbard-polar-bear_np015991-isbjorn-ja.jpgSvalbard polar bear_NP015991-isbjorn-JA2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/04/05/southern-hudson-bay-polar-bears-are-not-starving-to-death/2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/04/08/polar-bear-visits-newfoundland-community-of-goose-cove/https://polarbearscience.com/wp-content/uploads/2016/04/sea-ice-extent-canada-2016-april-7-cis.gifSea ice extent Canada 2016 April 7 CIShttps://polarbearscience.com/wp-content/uploads/2016/04/eaten_newfoundland3_small1.jpgEATEN_newfoundland3_smallhttps://polarbearscience.com/wp-content/uploads/2016/04/polar-bear-foot_usfws_polarbearnews2013.jpgPolar bear foot_USFWS_PolarBearNews20132024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/04/09/tracking-polar-bears-in-the-beaufort-sea-new-crop-of-tagged-bears-for-2016/https://polarbearscience.com/wp-content/uploads/2016/04/beaufort-sea-ice-thickness_arcticictnowcast_2014-april-8.gifBeaufort Sea ice thickness_arcticictnowcast_2014 April 8https://polarbearscience.com/wp-content/uploads/2016/04/beaufort-sea-ice-thickness_2015-april-8-nrl.gifBeaufort sea ice thickness_2015 April 8 NRLhttps://polarbearscience.com/wp-content/uploads/2016/04/beaufort-sea-ice-thickness_2016-april-8-nrl.gifBeaufort sea ice thickness_2016 April 8 NRLhttps://polarbearscience.com/wp-content/uploads/2016/04/beaufort-tracking-usgs-bear-movements-march-2016-sm.jpgBeaufort tracking USGS bear-movements-March 2016 sm“Movements of 6 satellite-tagged polar bears for the month of March, 2016. Polar bears were tagged in 2015 and 2016 on the spring-time sea ice of the southern Beaufort Sea. Three of these bears have satellite collar transmitters and 3 of these bears have glue-on satellite transmitters. Polar bear satellite telemetry data are shown with MODIS imagery from 31 March, 2016.” Original <a href="http://alaska.usgs.gov/science/biology/polar_bears/images/bear-movements-March-2016.jpg" target="_blank">here (higher resolution</a>). Note that the circles with the polar bear icons are the end points (final positions for the month), while the tail ends of the strings are the positions at the first of the month.2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/04/13/polar-bear-biologists-imply-summer-sea-ice-and-sea-ice-are-synonymous/https://polarbearscience.com/wp-content/uploads/2016/04/female-with-cubs-beaufort_usfws-credit-2007-w-label_sm.jpgFemale with cubs Beaufort_USFWS credit 2007 w label_smhttps://polarbearscience.com/wp-content/uploads/2016/04/sea-ice-extent-2015-jun-aver-nsidc_sm.pngSea ice extent 2015 Jun aver NSIDC_smhttps://polarbearscience.com/wp-content/uploads/2016/04/2016-new-trail-spring-mag_feature_derocher-stirling.jpg2016 New Trail spring mag_feature_Derocher Stirling2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/04/16/more-politics-of-polar-bears-courtesy-wwf-impaled-polar-bear-sculpture/https://polarbearscience.com/wp-content/uploads/2016/04/impaled-polar-bear-sculpture-co2-spike-2016-4-copenhagen.jpgimpaled-polar-bear-sculpture-CO2 spike-2016-4 CopenhagenFrom Business Insider (16 April 2016): The sculpture of an impaled polar bear goes on display in Denmark to show global warming is becoming 'unbearable.'2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/04/19/most-beaufort-polar-bears-swim-from-ice-floe-to-floe-during-breakup-study-shows/https://polarbearscience.com/wp-content/uploads/2016/04/pilfold-derocher_2016_fig-0001.pngPilfold Derocher_2016_fig-0001https://polarbearscience.com/wp-content/uploads/2016/04/swimming3_usgs.jpgswimming3_USGS2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/04/21/no-evidence-that-long-distance-swimming-contributed-to-beaufort-sea-polar-bear-population-crash-of-2004-2006/https://polarbearscience.com/wp-content/uploads/2016/04/derocher_cbc-news-19-april-2016.jpgDerocher_CBC news 19 April 20162024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/04/28/polar-bear-habitat-update-end-of-april-2016-plenty-of-sea-ice-for-feeding/https://polarbearscience.com/wp-content/uploads/2016/04/svalbard-ice-archived-2016-april-27_nis.pngSvalbard ice archived 2016 April 27_NIShttps://polarbearscience.com/wp-content/uploads/2016/04/svalbard-ice-extent-2012-april-27_nis.pngSvalbard ice extent 2012 April 27_NIShttps://polarbearscience.com/wp-content/uploads/2016/04/masie_all_zoom_4km.pngmasie_all_zoom_4kmhttps://polarbearscience.com/wp-content/uploads/2016/04/cambridge-bay_we-re-ok_from-joe-prins.jpgCambridge Bay_we re OK_from Joe Prinshttps://polarbearscience.com/wp-content/uploads/2016/04/sea-ice-canada-2016-april-28_cis.gifSea ice Canada 2016 April 28_CIShttps://polarbearscience.com/wp-content/uploads/2016/04/svalbard-icechart_season_2016-april-27.pngSvalbard icechart_season_2016 April 27https://polarbearscience.com/wp-content/uploads/2016/04/barents-sea-ice-extent-2016-april-27_nis.pngBarents Sea ice extent 2016 April 27_NIShttps://polarbearscience.com/wp-content/uploads/2016/04/east-coast-ice-departure-from-normal-week-april-25-2016-cis.gifEast Coast ice departure from normal week April 25 2016 CIShttps://polarbearscience.com/wp-content/uploads/2016/04/sea-ice-canada-2016-april-25-cis.gifSea ice Canada 2016 April 25 CIS2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/05/01/climate-hustle-knows-ten-dire-predictions-that-have-failed-as-global-polar-bear-population-hits-20-31k/https://polarbearscience.com/wp-content/uploads/2016/05/climate-hustle_may-2-2016.jpgClimate Hustle_May 2 20162024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/05/02/us-finally-abandons-unscientific-bid-to-ban-international-polar-bear-trade/https://polarbearscience.com/wp-content/uploads/2016/05/cites-2017-us-drops-bid-to-ban-polar-bear-trade_2-may-2016.jpgCITES 2017 US drops bid to ban polar bear trade_2 May 20162024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/05/03/famous-swimming-polar-bear-lost-less-weight-than-if-she-had-stayed-onshore/https://polarbearscience.com/wp-content/uploads/2016/05/national-geographic-swimming-polar-bear_snapshot_july22_2011.jpgNational Geographic swimming polar bear_snapshot_July22_2011https://polarbearscience.com/wp-content/uploads/2016/05/bbc-swimming-polar-bear_snapshot_jan25_2011.jpgBBC swimming polar bear_snapshot_Jan25_2011https://polarbearscience.com/wp-content/uploads/2016/05/washington-post_swimming-polar-bears_snapshot-21-april-2016.jpgWashington Post_swimming polar bears_snapshot 21 April 2016https://polarbearscience.com/wp-content/uploads/2016/05/durner-et-al-2011_bs-bear-20741-swim_fig1.jpgDurner et al 2011_BS bear 20741 swim_Fig12024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/05/09/tracking-polar-bears-in-the-beaufort-sea-in-april-2016-and-early-polynya-formation/https://polarbearscience.com/wp-content/uploads/2016/05/sea-ice-extent-canada-2016-may-8-cis.gifSea ice extent Canada 2016 May 8 CIShttps://polarbearscience.com/wp-content/uploads/2016/05/beaufort-tracking-usgs-bear-movements-april-2016-lg-closeup.jpgBeaufort tracking USGS bear-movements-April 2016 lg closeuphttps://polarbearscience.com/wp-content/uploads/2016/05/beaufort-tracking-usgs-bear-movements-april-2016-sm.jpgBeaufort tracking USGS bear-movements-April 2016 sm2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/05/12/beaufort-sea-fractured-ice-due-to-strong-beaufort-gyre-action-not-early-melt/https://polarbearscience.com/wp-content/uploads/2016/05/beaufort-sea-ice-thickness_2016-april-6-nrl.gifBeaufort sea ice thickness_2016 April 6 NRLhttps://polarbearscience.com/wp-content/uploads/2016/05/beaufort-sea-ice-thickness_2016-may-11-nrl.gifBeaufort sea ice thickness_2016 May 11 NRLhttps://polarbearscience.com/wp-content/uploads/2016/05/beaufort-gyre_nasa-at-9-may-2016_worldview.jpgBeaufort Gyre_NASA at 9 May 2016_WORLDVIEWhttps://polarbearscience.com/wp-content/uploads/2016/05/beaufort-gyre_athropolis.jpgBeaufort Gyre_Athropolishttps://polarbearscience.com/wp-content/uploads/2016/05/sea-ice-extent-canada-2016-may-11-cis.gifSea ice extent Canada 2016 May 11 CIShttps://polarbearscience.com/wp-content/uploads/2016/05/beaufort-gyre-video-screencap_locator-map_rotated.jpgBeaufort Gyre video screencap_locator map_rotatedhttps://polarbearscience.com/wp-content/uploads/2016/05/beaufort-gyre-video-screencap_21-april-2016_labelled.jpgBeaufort Gyre video screencap_21 April 2016_labelled2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/05/15/silence-of-the-iucn-polar-bear-specialist-group-on-the-2015-iucn-red-list-assessment/https://polarbearscience.com/wp-content/uploads/2016/05/livescience_polar-bear-facts-iucn-update_at-15-may-2016.jpgLiveScience_Polar Bear Facts IUCN update_at 15 May 2016https://polarbearscience.com/wp-content/uploads/2016/05/google-search-for-polar-bear_what-people-also-ask_15-may-2016.jpgGoogle search for polar bear_what people also ask_15 May 2016https://polarbearscience.com/wp-content/uploads/2016/05/wwf-link-to-iucn-pbsg_not-red-list_may-14-2016-w-logo.jpgWWF link to IUCN PBSG_not Red List_May 14 2016 w logohttps://polarbearscience.com/wp-content/uploads/2016/05/wwf-canada_polar-bear-at-14-may-2016.jpgWWF Canada_polar bear at 14 May 2016https://polarbearscience.com/wp-content/uploads/2016/05/google-search_polar-bear-red-list_11-may-2016.jpgGoogle search_polar bear red list_11 May 2016https://polarbearscience.com/wp-content/uploads/2016/05/pbsg-website-banner-may-10-2016.jpgPBSG website banner May 10 20162024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/05/18/more-sea-ice-in-hudson-bay-region-at-mid-may-than-in-2006-2011/https://polarbearscience.com/wp-content/uploads/2016/05/sea-ice-extent-canada-2016-may-17-cis.gifSea ice extent Canada 2016 May 17 CIShttps://polarbearscience.com/wp-content/uploads/2016/05/ice-speed-drift-2016-nrl-may-16.gifIce speed drift 2016 NRL May 16https://polarbearscience.com/wp-content/uploads/2016/05/masie_all_r10_v01_2015136_4km.pngmasie_all_r10_v01_2015136_4kmhttps://polarbearscience.com/wp-content/uploads/2016/05/masie_all_r10_v01_2011136_4km.pngmasie_all_r10_v01_2011136_4kmhttps://polarbearscience.com/wp-content/uploads/2016/05/masie_all_r10_v01_2006136_4km.pngmasie_all_r10_v01_2006136_4kmhttps://polarbearscience.com/wp-content/uploads/2016/05/masie_all_r10_v01_2016137_4km.pngmasie_all_r10_v01_2016137_4km2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/05/18/another-alleged-grizzly-polar-bear-hybrid-shot-but-its-not-a-sign-of-climate-change/https://polarbearscience.com/wp-content/uploads/2016/05/arviat-with-churchill_google-maps.jpgArviat with Churchill_Google mapshttps://polarbearscience.com/wp-content/uploads/2016/05/grizzly-light_nps-photo.jpgGrizzly light_NPS photohttps://polarbearscience.com/wp-content/uploads/2016/05/hybrid-pb-shot-in-arviat_cbc-18-may-2016.jpgHybrid pb shot in Arviat_CBC 18 May 20162024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/05/23/five-facts-that-challenge-polar-bear-hybridization-nonsense/https://polarbearscience.com/wp-content/uploads/2016/05/hybrids-again_washington-post-23-may-2016_title-screencap.jpgHybrids again_Washington Post 23 May 2016_title screencaphttps://polarbearscience.com/wp-content/uploads/2016/05/grizzly-populations-canada-2012_sara.jpgGrizzly populations Canada 2012_SARAhttps://polarbearscience.com/wp-content/uploads/2016/05/doupe-et-al-2007-fig-1-map-only.jpgDoupe et al 2007 fig 1 map onlyhttps://polarbearscience.com/wp-content/uploads/2016/05/nunavut-and-other-provinces_grizzly-presence_gov-dot-ca.jpgNunavut and other provinces_grizzly presence_Gov dot cahttps://polarbearscience.com/wp-content/uploads/2016/05/ec_polarbearstatusmapcanada_oct-26-2014.jpgEC_PolarBearStatusMapCanada_Oct 26 20142024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/05/24/polar-bear-hybrid-update-samples-sent-for-dna-testing-to-rule-out-blonde-grizzly/https://polarbearscience.com/wp-content/uploads/2016/05/hybrid-bear_didji-ishalook-15-may2016_facebook.jpghybrid-bear_didji-ishalook-15 May2016_facebook2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/05/27/most-polar-bear-hybrids-said-to-exist-have-not-been-confirmed-by-dna-testing/https://polarbearscience.com/wp-content/uploads/2016/05/hybrid-sightings-viscount-melvilled-spring-2012-jodie-pongracz_gnwt.jpgHybrid sightings Viscount Melvilled spring 2012 Jodie Pongracz_GNWThttps://polarbearscience.com/wp-content/uploads/2016/05/ulukhaktok-google-maps.jpgUlukhaktok google mapshttps://polarbearscience.com/wp-content/uploads/2016/05/hybrid-sightings-canada-spiegel_2012-lead-photo.jpgHybrid sightings Canada Spiegel_2012 lead photohttps://polarbearscience.com/wp-content/uploads/2016/05/hybrid-sightings-victoria-island-spring-2012-jodie-pongracz_gnwt.jpgHybrid sightings Victoria Island spring 2012 Jodie Pongracz_GNWT2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/06/02/tracking-polar-bears-in-the-beaufort-sea-and-the-issue-of-open-water-in-may/https://polarbearscience.com/wp-content/uploads/2016/06/2015-nov-16_22_at-nov-23.jpg2015 Nov 16_22_at Nov 23https://polarbearscience.com/wp-content/uploads/2016/06/derocher-whb-bears-at-31-may-2016.jpgDerocher WHB bears at 31 May 2016https://polarbearscience.com/wp-content/uploads/2016/06/derocher-whb-bears-at-06-may-2015.jpgDerocher WHB bears at 06 May 2015https://polarbearscience.com/wp-content/uploads/2016/06/sea-ice-extent-canada-2016-june-1-cis.gifSea ice extent Canada 2016 June 1 CIShttps://polarbearscience.com/wp-content/uploads/2016/06/sea-ice-canada-2015-june-1_cis.gifSea ice Canada 2015 June 1_CIShttps://polarbearscience.com/wp-content/uploads/2016/06/beaufort-tracking-usgs-bear-movements-may-2016-closeup.jpgBeaufort tracking USGS bear-movements-May 2016 closeuphttps://polarbearscience.com/wp-content/uploads/2016/06/beaufort-tracking-usgs-bear-movements-may-2016-sm.jpgBeaufort tracking USGS bear-movements-May 2016 smOriginal caption: "Movements of 9 satellite-tagged polar bears for the month of May, 2016. Polar bears were tagged in 2015 and 2016 on the spring-time sea ice of the southern Beaufort Sea. Seven of these bears have satellite collar transmitters and 2 of these bears have glue-on satellite transmitters. Polar bear satellite telemetry data are shown with AMSR2 remotely-sensed ice coverage for 31 May, 2016." Original image here. 2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/06/07/colleague-says-eaten-possibly-a-real-service-to-polar-bear-conservation/https://polarbearscience.com/wp-content/uploads/2016/06/june-summer-reading-sale-image3.jpgJune summer reading sale image3https://polarbearscience.com/wp-content/uploads/2016/06/june-summer-reading-sale-image5.jpgJune summer reading sale image52024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/06/09/some-inconvenient-polar-bear-facts-supported-by-scientific-literature/https://polarbearscience.com/wp-content/uploads/2016/06/usgs-w_polarbearscience_caption-20161.jpgUSGS w_polarbearscience_caption 20162024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/06/11/ice-maps-vs-observations-in-the-w-arctic-polar-bear-habitat-reality-check/https://polarbearscience.com/wp-content/uploads/2016/06/beaufort-sea-same-week-4-june-1968-2016.pngBeaufort Sea same week 4 June 1968-2016https://polarbearscience.com/wp-content/uploads/2016/06/beaufort-sea-ice-concentration_2016-may-16-nrl.gifBeaufort sea ice concentration_2016 May 16 NRLhttps://polarbearscience.com/wp-content/uploads/2016/06/western-arctic-ice-stage-of-development-weekly-at-6-june-2016.gifWestern Arctic ice stage of development weekly at 6 June 2016https://polarbearscience.com/wp-content/uploads/2016/06/beaufort-nsidc-at-21-may-2016_from-monthly-report.jpgBeaufort NSIDC at 21 May 2016_from monthly reporthttps://polarbearscience.com/wp-content/uploads/2016/06/masie-sea-ice-2016-at-8-june-closeup-chukchi-beaufort_polarbearscience.jpgMasie sea ice 2016 at 8 June closeup Chukchi Beaufort_polarbearsciencehttps://polarbearscience.com/wp-content/uploads/2016/06/shishmaref_ice_coastguard-01_8-june-2016.jpgShishmaref_ice_CoastGuard 01_8 June 2016https://polarbearscience.com/wp-content/uploads/2016/06/shishmaref_ice_coastguard-02_8-june-2016.jpgShishmaref_ice_CoastGuard 02_8 June 2016https://polarbearscience.com/wp-content/uploads/2016/06/chukchi-beaufort-locations_polarbearscience_sm.jpgChukchi Beaufort locations_PolarBearScience_smhttps://polarbearscience.com/wp-content/uploads/2016/06/masie_all_zoom_4km_2016_june_8.pngmasie_all_zoom_4km_2016_June_82024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/06/13/new-paper-shows-no-harm-from-more-time-on-land-for-s-beaufort-polar-bears/https://polarbearscience.com/wp-content/uploads/2016/06/polarbears-arcticnatlwildliferefuge-suzannemiller-usfws_labeled_sm.jpgpolarbears-arcticnatlwildliferefuge-suzannemiller-usfws_labeled_smhttps://polarbearscience.com/wp-content/uploads/2016/06/atwood-et-al-2016-fig-1b-map1.jpgAtwood et al 2016 fig 1b map2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/06/15/polar-bears-are-not-bloodthirsty-killers-says-biologist-just-dont-forget-your-gun/https://polarbearscience.com/wp-content/uploads/2016/06/alaska-pb-usgs_marked.jpgAlaska PB USGS_markedhttps://polarbearscience.com/wp-content/uploads/2016/06/svalbard_pb_fareskilt_38.pngSvalbard_PB_Fareskilt_38https://polarbearscience.com/wp-content/uploads/2016/06/eaten-ebook-sale-2016-susancrockford_dot_com.jpgEATEN ebook sale 2016 susancrockford_dot_comhttps://polarbearscience.com/wp-content/uploads/2016/06/eaten-cover-image_susancrockford_dot_com.jpgIsbjørnPolar Bear (Ursus maritimus) walking on the drifting ice in Spitsbergen, Svalbard2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/06/16/pbsg-failure-to-acknowledge-2015-iucn-polar-bear-update-drives-the-public-here/https://polarbearscience.com/wp-content/uploads/2016/06/eol_polar-bear-trends_main-listing_16-june-2016.jpgEOL_polar bear trends_main listing_16 June 2016https://polarbearscience.com/wp-content/uploads/2016/06/eol_polar-bear_at-16-jun-2016-listed-by-google.jpgEOL_polar bear_at 16 Jun 2016 listed by Googlehttps://polarbearscience.com/wp-content/uploads/2016/06/pbsg-at-16-june-2016.jpgPBSG at 16 June 20162024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/06/19/terrestrial-food-fight-amongst-polar-bear-researchers-reflects-political-differences/https://polarbearscience.com/wp-content/uploads/2016/06/pbsg-website-news_at-may-7-2016.jpgPBSG website NEWS_at May 7 2016https://polarbearscience.com/wp-content/uploads/2016/06/polar-bears-eating-terrest-foods-whb_rockwell-press-release.jpgPolar bears eating terrest foods WHB_Rockwell press release2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/06/21/five-years-of-polar-bear-habitat-at-june-20-around-the-arctic/https://polarbearscience.com/wp-content/uploads/2016/06/barents-sea-ice-2012-june-20.jpgBarents Sea ice 2012 June 20https://polarbearscience.com/wp-content/uploads/2016/06/svalbard-sea-ice-extent-2016-june-20_nis.pngSvalbard sea ice extent 2016 June 20_NIShttps://polarbearscience.com/wp-content/uploads/2016/06/ice-thickness-navy-forecast-june-20-2016.gifIce thickness Navy forecast June 20 2016https://polarbearscience.com/wp-content/uploads/2016/06/masie_all_zoom_4km-2016-june-20.pngmasie_all_zoom_4km 2016 June 20https://polarbearscience.com/wp-content/uploads/2016/06/relative-importance-of-seasons-polar-bear-graphic_polarbearscience_june2016.jpgRelative importance of seasons polar bear graphic_PolarBearScience_June2016https://polarbearscience.com/wp-content/uploads/2016/06/sea-ice-extent-canada-2016-june-20-cis.gifSea ice extent Canada 2016 June 20 CIShttps://polarbearscience.com/wp-content/uploads/2016/06/sea-ice-extent-canada-2015-june-20-cis.gifSea ice extent Canada 2015 June 20 CIShttps://polarbearscience.com/wp-content/uploads/2016/06/sea-ice-extent-canada-2014-june-20.gifSea ice extent Canada 2014 June 20https://polarbearscience.com/wp-content/uploads/2016/06/sea-ice-extent-canada-2013-june-20_cis.gifSea ice extent Canada 2013 June 20_CIShttps://polarbearscience.com/wp-content/uploads/2016/06/sea-ice-extent-canada-2012-june-20.gifSea ice extent Canada 2012 June 202024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/06/21/breaking-dna-results-prove-so-called-polar-bear-hybrid-was-a-blonde-grizzly/https://polarbearscience.com/wp-content/uploads/2016/06/grizzly-polar-bear-hybrid_arviat-2016-didji-ishalook.jpggrizzly-polar-bear-hybrid_Arviat 2016 Didji Ishalook2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/06/29/polar-bears-and-w-hudson-bay-sea-ice-breakup-2016/https://polarbearscience.com/wp-content/uploads/2016/06/sea-ice-extent-canada-2016-june-29-cis.gifSea ice extent Canada 2016 June 29 CIShttps://polarbearscience.com/wp-content/uploads/2016/06/map-westernhudsonbay.jpgmap-WesternHudsonBayhttps://polarbearscience.com/wp-content/uploads/2016/06/whb-pbs-leave-the-ice-marked_14-july-2014-map1.jpgWHB pbs leave the ice marked_14 July 2014 maphttps://polarbearscience.com/wp-content/uploads/2016/06/maise-ice-hb-2013-at-29-june-day-180-pb-attack-yr.jpgMaise ice HB 2013 at 29 June day 180 PB attack yrhttps://polarbearscience.com/wp-content/uploads/2016/06/maise-ice-hb-2015-at-29-june-day-180.jpgMaise ice HB 2015 at 29 June day 180https://polarbearscience.com/wp-content/uploads/2016/06/maise-ice-hb-2009-at-29-june-day-180.jpgMaise ice HB 2009 at 29 June day 180https://polarbearscience.com/wp-content/uploads/2016/06/maise-ice-hb-2016-at-28-june-day-180.jpgMaise ice HB 2016 at 28 June day 180https://polarbearscience.com/wp-content/uploads/2016/06/whb-pbs-leave-the-ice-marked_14-july-2014-map.jpgWHB pbs leave the ice marked_14 July 2014 maphttps://polarbearscience.com/wp-content/uploads/2016/06/whb-breakup-at-28-june-2016-marked.jpgWHB breakup at 28 June 2016 markedCanadian Ice Service chart for 28 June 2016 showing the Western Hudson Bay region used by Cherry and colleagues (2013) to calculate breakup dates relevant for polar bears, marked in dark pink. The map from Cherry et al. used in their paper to define the region is added as an inset, upper right.https://polarbearscience.com/wp-content/uploads/2016/06/churchill_polar_bear_2004-11-15-wikipedia.jpgChurchill_Polar_Bear_2004-11-15 Wikipedia2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/06/30/usgs-polar-bear-researchers-publish-their-rebuttal-to-2015-iucn-red-list-assessment/https://polarbearscience.com/wp-content/uploads/2016/06/kaktovik-female-w-cub_21-september-2015-usda_med.jpgKaktovik female w cub_21 September 2015 USDA_medhttps://polarbearscience.com/wp-content/uploads/2016/06/iucn-red-list-2015-pb-assessment-population-trend.jpgIUCN RED LIST 2015 pb assessment population trend2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/07/05/critical-spring-feeding-for-polar-bears-is-over-sea-ice-levels-are-now-irrelevant/https://polarbearscience.com/wp-content/uploads/2016/07/bearded-seal-hunted-by-polar-bear-bbc-snapshot-2.jpgBearded seal hunted by polar bear BBC snapshot 2https://polarbearscience.com/wp-content/uploads/2016/07/masie_all_zoom_4km-2016-may-14.pngmasie_all_zoom_4km 2016 May 14https://polarbearscience.com/wp-content/uploads/2016/07/masie_all_zoom_4km-2016-may-31.pngmasie_all_zoom_4km 2016 May 31https://polarbearscience.com/wp-content/uploads/2016/07/masie_all_zoom_4km-2016-july-4.pngmasie_all_zoom_4km 2016 July 4https://polarbearscience.com/wp-content/uploads/2016/07/masie_all_zoom_4km-2016-june-16.pngmasie_all_zoom_4km 2016 June 16https://polarbearscience.com/wp-content/uploads/2016/07/amstrup-et-al-2011-fig-1-ecoregions_sm.jpgAmstrup et al 2011 fig 1 ecoregions_sm2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/07/11/tracking-polar-bears-in-the-beaufort-sea-all-bears-on-the-ice-in-june/https://polarbearscience.com/wp-content/uploads/2016/07/sea-ice-extent-canada-2016-july-10_cis.gifSea ice extent Canada 2016 July 10_CIShttps://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r01_v01_2012189_4km.pngmasie_all_r01_v01_2012189_4kmhttps://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r01_v01_2016189_4km.pngmasie_all_r01_v01_2016189_4kmhttps://polarbearscience.com/wp-content/uploads/2016/07/beaufort-sea_mackenzie_same-week-4-june-1968-2016.pngBeaufort Sea_Mackenzie_same week 4 June 1968-2016https://polarbearscience.com/wp-content/uploads/2016/07/r01_beaufort_sea_ts_4km-2016-july-7.pngr01_Beaufort_Sea_ts_4km 2016 July 7https://polarbearscience.com/wp-content/uploads/2016/07/beaufort-sea_same-week-2-july-1968-2016.pngBeaufort Sea_same week 2 July 1968-2016https://polarbearscience.com/wp-content/uploads/2016/07/western-arctic-ice-concentration-weekly-at-4-july-2016.gifWestern Arctic ice concentration weekly at 4 July 2016https://polarbearscience.com/wp-content/uploads/2016/07/western-arctic-ice-stage-of-development-weekly-at-4-july-2016.gifWestern Arctic ice stage of development weekly at 4 July 2016https://polarbearscience.com/wp-content/uploads/2016/07/beaufort-tracking-usgs-bear-movements-june-2016-sm.jpgBeaufort tracking USGS bear-movements-June 2016 smOriginal caption: "Movements of 5 satellite-tagged polar bears for the month of June, 2016. Polar bears were tagged in 2015 and 2016 on the spring-time sea ice of the southern Beaufort Sea. All 5 of these bears have satellite collar transmitters. Polar bear satellite telemetry data are shown with MODIS imagery from 1 July, 2016." See original map here.https://polarbearscience.com/wp-content/uploads/2016/07/beaufort-tracking-usgs-bear-movements-june-2016-lg-closeup.jpgBeaufort tracking USGS bear-movements-June 2016 lg closeup2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/07/13/new-paper-u-of-a-put-collars-on-subadult-sb-polar-bear-males-since-2007/https://polarbearscience.com/wp-content/uploads/2016/07/pongracz-and-derocher-2016-fig-2-pbs-on-ice-that-is-not-there.jpgPongracz and Derocher 2016 fig 2 pbs on ice that is not therehttps://polarbearscience.com/wp-content/uploads/2016/07/polar-bear-radio-collar_cbc-oct-28-2015.jpgpolar-bear-radio-collar_CBC Oct 28 20152024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/07/15/hudson-bay-update-lots-of-sea-ice-well-positioned-for-polar-bears-to-get-ashore/https://polarbearscience.com/wp-content/uploads/2016/07/sea-ice-extent-canada_2013-july-16_cis.gifSea ice extent Canada_2013 July 16_CIShttps://polarbearscience.com/wp-content/uploads/2016/07/sea-ice-extent-canada-2014-july-14-cis.gifSea ice extent Canada 2014 July 14 CIShttps://polarbearscience.com/wp-content/uploads/2016/07/hudson-bay-breakup-july-14-2015_cis.gifHudson Bay breakup July 14 2015_CIShttps://polarbearscience.com/wp-content/uploads/2016/07/sea-ice-extent-canada-2016-july-14_cis.gifSea ice extent Canada 2016 July 14_CIShttps://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r10_v01_2009193_4km.pngmasie_all_r10_v01_2009193_4kmhttps://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r10_v01_2016194_4km.pngmasie_all_r10_v01_2016194_4kmhttps://polarbearscience.com/wp-content/uploads/2016/07/hudson-bay-same-week-9-july-1971-2016.pngHudson Bay same week 9 July 1971-2016https://polarbearscience.com/wp-content/uploads/2016/07/sea-ice-extent-canada-2016-july-15_cis.gifSea ice extent Canada 2016 July 15_CIS2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/07/20/arctic-melt-ponds-get-media-spotlight-as-laptev-sea-ice-hits-an-11-year-high/https://polarbearscience.com/wp-content/uploads/2016/07/healy-aug-24-2015-polar-bear-v-tim-kenna.jpgHealy Aug 24 2015 Polar-Bear V Tim Kennahttps://polarbearscience.com/wp-content/uploads/2016/07/polarbearcv1_usgs_2009.jpgPolarBearCV1_USGS_2009https://polarbearscience.com/wp-content/uploads/2016/07/r04_laptev_sea_ts_4km-2016-july-19.pngr04_Laptev_Sea_ts_4km 2016 July 19https://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r04_v01_2015199_4km.pngmasie_all_r04_v01_2015199_4kmhttps://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r04_v01_2014199_4km.pngmasie_all_r04_v01_2014199_4kmhttps://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r04_v01_2012200_4km.pngmasie_all_r04_v01_2012200_4kmhttps://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r04_v01_2007200_4km.pngmasie_all_r04_v01_2007200_4kmhttps://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r04_v01_2006199_4km.pngmasie_all_r04_v01_2006199_4kmhttps://polarbearscience.com/wp-content/uploads/2016/07/masie_all_zoom_4km.pngmasie_all_zoom_4kmhttps://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r04_v01_2016200_4km.pngmasie_all_r04_v01_2016200_4km2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/07/26/four-years-of-polarbearscience-and-polar-bear-habitat-for-christmas-in-july/https://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r10_v01_2006206_4km.pngmasie_all_r10_v01_2006206_4kmhttps://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r10_v01_2007206_4km.pngmasie_all_r10_v01_2007206_4kmhttps://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r10_v01_2008207_4km.pngmasie_all_r10_v01_2008207_4kmhttps://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r10_v01_2009206_4km.pngmasie_all_r10_v01_2009206_4kmhttps://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r10_v01_2010206_4km.pngmasie_all_r10_v01_2010206_4kmhttps://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r10_v01_2011206_4km.pngmasie_all_r10_v01_2011206_4kmhttps://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r10_v01_2012207_4km.pngmasie_all_r10_v01_2012207_4kmhttps://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r10_v01_2013206_4km.pngmasie_all_r10_v01_2013206_4kmhttps://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r10_v01_2014206_4km.pngmasie_all_r10_v01_2014206_4kmhttps://polarbearscience.com/wp-content/uploads/2016/07/masie_all_r10_v01_2015206_4km.pngmasie_all_r10_v01_2015206_4km2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/08/02/usgs-report-on-history-of-walrus-haulouts-leaves-out-correlation-with-population-size/https://polarbearscience.com/wp-content/uploads/2016/08/walrus-haulout-data-usgs-31-july-2016-npr.pngwalrus haulout data-USGS 31 July 2016 NPRhttps://polarbearscience.com/wp-content/uploads/2016/08/walrus-2012-july-usgs.jpgWalrus 2012 July USGS2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/08/07/canadian-prime-minister-risked-being-eaten-by-polar-bears-on-fogo-this-year/https://polarbearscience.com/wp-content/uploads/2016/08/fogo-island-2-lg.jpgFogo Island 2 lghttps://polarbearscience.com/wp-content/uploads/2016/08/newfoundland-map-marked-3-inches.jpgNewfoundland map marked 3 incheshttps://polarbearscience.com/wp-content/uploads/2016/08/fogo-island-special-on-knowledge-network_9-aug-2016.jpgFogo Island special on Knowledge Network_9 Aug 20162024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/08/08/tracking-polar-bears-in-the-beaufort-sea-in-july-sea-ice-comparison-with-20072012/https://polarbearscience.com/wp-content/uploads/2016/08/masie_all_r00_v01_2012218_4km_cropped.pngmasie_all_r00_v01_2012218_4km_croppedhttps://polarbearscience.com/wp-content/uploads/2016/08/masie_all_r00_v01_2007217_4km_cropped.pngmasie_all_r00_v01_2007217_4km_croppedhttps://polarbearscience.com/wp-content/uploads/2016/08/masie_all_r00_v01_2007217_4km.pngmasie_all_r00_v01_2007217_4kmhttps://polarbearscience.com/wp-content/uploads/2016/08/masie_all_zoom_4km-2016-aug-5.pngmasie_all_zoom_4km 2016 Aug 5https://polarbearscience.com/wp-content/uploads/2016/08/beaufort-tracking-usgs-bear-movements-july-2016-sm.jpgBeaufort tracking USGS bear-movements-July 2016 smOriginal caption: "Movements of 4 satellite-tagged polar bears for the month of July, 2016. Polar bears were tagged in 2015 and 2016 on the spring-time sea ice of the southern Beaufort Sea. All 4 of these bears have satellite collar transmitters. Polar bear satellite telemetry data are shown with AMSR2 remotely-sensed ice coverage from 31 July, 2016." Original image here.2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/08/13/narwhal-and-beluga-ice-entrapment-is-natural-not-caused-by-global-warming/https://polarbearscience.com/wp-content/uploads/2016/08/disko-bay_ice-entrapment_polarbearscience_13-aug-2016.jpgDisko Bay_ice entrapment_PolarBearScience_13 Aug 2016https://polarbearscience.com/wp-content/uploads/2016/08/pond-inlet_ice-entrapment_polarbearscience_13-aug-2016.jpgPond Inlet_ice entrapment_PolarBearScience_13 Aug 2016https://polarbearscience.com/wp-content/uploads/2016/08/pond-inlet-and-disko-bay_google-maps_labelled.jpgPond Inlet and Disko Bay_Google maps_labelledhttps://polarbearscience.com/wp-content/uploads/2016/08/narwhals_at-risk-from-climate-change_cbc-13-aug-2016-headline.jpgNarwhals_at risk from climate change_CBC 13 Aug 2016 headline2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/08/30/most-polar-bears-easily-deterred-this-time-of-year-lucky-labrador-boaters-discover/https://polarbearscience.com/wp-content/uploads/2016/08/stirling-and-kiliaan-1980-fig-2.jpgStirling and Kiliaan 1980 fig 2https://polarbearscience.com/wp-content/uploads/2016/08/moores-harbour_labrador_pb-encounter-location.jpgMoores Harbour_Labrador_pb encounter locationhttps://polarbearscience.com/wp-content/uploads/2016/08/torngate-mountains-nat-park-v1.jpgTorngate Mountains Nat Park v1https://polarbearscience.com/wp-content/uploads/2016/08/labrador-polar-bear-encounter-torngat-boat_cbc-30-aug-2016.jpgLabrador polar bear encounter Torngat boat_CBC 30 Aug 20162024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/09/02/columnist-admits-video-on-polar-bears-and-global-warming-contained-a-serious-error/https://polarbearscience.com/wp-content/uploads/2016/09/what-to-know-about-pbs-gw_video_screencap-3-corrected_2-sept-2016.jpgWhat to know about pbs GW_Video_screencap 3 corrected_2 Sept 2016https://polarbearscience.com/wp-content/uploads/2016/09/what-to-know-about-pbs-gw_video_screencap-2_sun_18-aug-2016-marked.jpgWhat to know about pbs GW_Video_screencap 2_SUN_18 Aug 2016 marked2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/09/04/add-human-graves-to-the-list-of-things-that-attract-polar-bears-to-communities/https://polarbearscience.com/wp-content/uploads/2016/09/arviat-with-churchill_rankin-and-whale-cove_polarbearscience.jpgArviat with Churchill_Rankin and Whale Cove_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2016/09/arviatbear2_570-diversionary-feeding_2013-arviat-conservation.jpgArviatBear2_570 diversionary feeding_2013 Arviat conservationhttps://polarbearscience.com/wp-content/uploads/2016/09/arviatbear2_570-diversionary-feeding_2013-arviat-conservation-w-caption.jpgArviatBear2_570 diversionary feeding_2013 Arviat conservation w captionhttps://polarbearscience.com/wp-content/uploads/2016/09/mother-and-cub-on-beach_stirling.jpgmother-and-cub-on-beach_Stirling2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/09/07/tracking-polar-bears-in-the-beaufort-sea-during-august-2016/https://polarbearscience.com/wp-content/uploads/2016/09/beaufort-tracking-usgs-bear-movements-august-2012_sm.jpgbeaufort-tracking-usgs-bear-movements-august-2012_smhttps://polarbearscience.com/wp-content/uploads/2016/09/beaufort-tracking-usgs-bear-movements-august-2016-sm.jpgbeaufort-tracking-usgs-bear-movements-august-2016-smOriginal caption: "Movements of 3 satellite-tagged polar bears for the month of August, 2016. Polar bears were tagged in 2016 on the spring-time sea ice of the southern Beaufort Sea. All 3 of these bears have satellite collar transmitters. Polar bear satellite telemetry data are shown with AMSR2 remotely-sensed ice coverage from 31 August, 2016." See larger image here. https://polarbearscience.com/wp-content/uploads/2016/09/tranquilized_pb570_s-beaufort-march-2014_usgs.jpgtranquilized_pb570_s-beaufort-march-2014_usgshttps://polarbearscience.com/wp-content/uploads/2016/09/sow_yearling_usgs.jpgsow_yearling_usgs2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/09/11/beaufort-polar-bear-with-tight-collar-found-and-rescued-says-u-of-alberta/https://polarbearscience.com/wp-content/uploads/2016/09/kaktovik-composite.jpgkaktovik-composite2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/09/13/recent-studies-show-sept-ice-of-3-5-mkm2-did-not-kill-polar-bears-off-as-predicted/https://polarbearscience.com/wp-content/uploads/2016/09/acia-2004-sea-ice-projections-vs-2002-and-acia-2004-fig-6-8.jpgacia-2004-sea-ice-projections-vs-2002-and-acia-2004-fig-6-8https://polarbearscience.com/wp-content/uploads/2016/09/sea-ice-extent-2016-sept-10_nsidc1.pngsea-ice-extent-2016-sept-10_nsidchttps://polarbearscience.com/wp-content/uploads/2016/09/sea-ice-extent-2016-sept-10_nsidc.pngsea-ice-extent-2016-sept-10_nsidchttps://polarbearscience.com/wp-content/uploads/2016/09/sea-ice-mins_2007_2012_2015_polarbearscience.jpgsea-ice-mins_2007_2012_2015_polarbearsciencehttps://polarbearscience.com/wp-content/uploads/2016/09/obbard-et-al-2016-fig-2.jpgobbard-et-al-2016-fig-2https://polarbearscience.com/wp-content/uploads/2016/09/obbard-et-al-2016-fig-4.jpgobbard-et-al-2016-fig-4Original caption (Fig. 5). "Ordinal dates of freeze-up (shaded circles) and break-up (open circles), and the duration of ice cover (solid circles), all to 5% ice concentration, for the coastal break-up and freeze-up zones off the northern Ontario coast and coast of James Bay in Ontario, Canada, 1980–2012. Text labels show Pearson’s correlation coefficients for the linear relationships depicted, all of which were significant at α = 0.05."https://polarbearscience.com/wp-content/uploads/2016/09/cherry-et-al-breakup-dates-for-whb_1991-2009-with-average_july-8-2014.jpgcherry-et-al-breakup-dates-for-whb_1991-2009-with-average_july-8-2014https://polarbearscience.com/wp-content/uploads/2016/09/huebert_feb-2005-sea-ice-projections-vs-2002_slide-12.jpghuebert_feb-2005-sea-ice-projections-vs-2002_slide-12https://polarbearscience.com/wp-content/uploads/2016/09/hudson-bay-breakup-july-20-2015_cis.gifHudson Bay breakup July 20 2015_CIShttps://polarbearscience.com/wp-content/uploads/2016/09/sea-ice-extent-canada-2016-july-8_cis.gifSea ice extent Canada 2016 July 8_CIS2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/09/17/polar-bear-tragedy-porn-dressed-up-as-science-features-in-new-bbc-earth-video/https://polarbearscience.com/wp-content/uploads/2016/09/bbc-video-15-sept-2016-screencap-breaking-ice-01.jpgbbc-video-15-sept-2016-screencap-breaking-ice-01https://polarbearscience.com/wp-content/uploads/2016/09/bbc-video-15-sept-2016-screencap-breaking-ice-02.jpgbbc-video-15-sept-2016-screencap-breaking-ice-02https://polarbearscience.com/wp-content/uploads/2016/09/bbc-video-15-sept-2016-screencap-breaking-ice-2.jpgbbc-video-15-sept-2016-screencap-breaking-ice-2https://polarbearscience.com/wp-content/uploads/2016/09/bbc-video-15-sept-2016-screencap-breaking-ice.jpgbbc-video-15-sept-2016-screencap-breaking-ice2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/09/19/climate-change-not-forcing-polar-bears-to-hunt-humans-but-lack-of-baby-seals-might/https://polarbearscience.com/wp-content/uploads/2016/09/russian-weather-station-troynoy-island_mailonline-18-sept-2016.jpgrussian-weather-station-troynoy-island_mailonline-18-sept-2016https://polarbearscience.com/wp-content/uploads/2016/09/russian-scientists-trapped-by-polar-bears-14-sept-2016_ib-times.jpgrussian-scientists-trapped-by-polar-bears-14-sept-2016_ib-timeshttps://polarbearscience.com/wp-content/uploads/2016/09/churchill-polar-bear-encounters-up-in-2015_cbc-headline-feb-28-2016.jpgchurchill-polar-bear-encounters-up-in-2015_cbc-headline-feb-28-2016https://polarbearscience.com/wp-content/uploads/2016/09/sept-reading-promo_eaten.jpgsept-reading-promo_eaten2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/09/23/polar-bears-seldom-catch-seals-they-stalk-in-summer-its-why-they-fast/https://polarbearscience.com/wp-content/uploads/2016/09/sea-ice_melt-ponds_nasa-taken-13july2016_sm.jpgsea-ice_melt-ponds_nasa-taken-13july2016_sm2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/09/28/the-polar-bear-problem-no-one-will-talk-about-the-downside-to-large-populations/https://polarbearscience.com/wp-content/uploads/2016/09/killed-in-svalbard-1973-to-2015_mosj.jpgkilled-in-svalbard-1973-to-2015_mosjhttps://polarbearscience.com/wp-content/uploads/2016/09/svalbard-capital-and-ice-at-22-april-2016.jpgsvalbard-capital-and-ice-at-22-april-2016https://polarbearscience.com/wp-content/uploads/2016/09/svalbard-more-visitors-more-bears-shot_28-sept-2016-yahoo.jpgsvalbard-more-visitors-more-bears-shot_28-sept-2016-yahoo2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/09/29/polar-bear-habitat-this-fall-shaping-up-fast-more-like-2010-than-2007/https://polarbearscience.com/wp-content/uploads/2016/09/masie-sea-ice-2010-nov-7_cropped.jpgmasie-sea-ice-2010-nov-7_croppedhttps://polarbearscience.com/wp-content/uploads/2016/09/masie-sea-ice-2010-nov-21-hudson-bay_cropped.jpgmasie-sea-ice-2010-nov-21-hudson-bay_croppedhttps://polarbearscience.com/wp-content/uploads/2016/09/masie-sea-ice-2010-nov-1-doy-305_8-point-5_cropped.jpgmasie-sea-ice-2010-nov-1-doy-305_8-point-5_croppedhttps://polarbearscience.com/wp-content/uploads/2016/09/sea-ice-at-28-sept_2016_vs-2010_2012_5-point-0_nsidc-interactive.jpgsea-ice-at-28-sept_2016_vs-2010_2012_5-point-0_nsidc-interactivehttps://polarbearscience.com/wp-content/uploads/2016/09/masie_all_zoom_4km-2016-aug-24.pngmasie_all_zoom_4km-2016-aug-24https://polarbearscience.com/wp-content/uploads/2016/09/masie_all_zoom_4km-2016-sept-10.pngmasie_all_zoom_4km-2016-sept-10https://polarbearscience.com/wp-content/uploads/2016/09/masie_all_zoom_4km-2016-sept-28.pngmasie_all_zoom_4km-2016-sept-28https://polarbearscience.com/wp-content/uploads/2016/09/sea-ice-at-28-sept_2016_vs-2007_2012_5-point-0_nsidc-interactive.jpgsea-ice-at-28-sept_2016_vs-2007_2012_5-point-0_nsidc-interactive2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/10/02/polar-bear-onshore-in-tuktoyaktuk-got-so-close-to-kids-they-heard-it-breathing/https://polarbearscience.com/wp-content/uploads/2016/10/sea-ice-extent-canada-2016-oct-2_cis.gifsea-ice-extent-canada-2016-oct-2_cishttps://polarbearscience.com/wp-content/uploads/2016/10/tuktoyaktuk-location_google-maps.jpgtuktoyaktuk-location_google-mapshttps://polarbearscience.com/wp-content/uploads/2016/10/tuk-polar-bear-sighting-sept-29_cbc-oct-1-2016-headline.jpgtuk-polar-bear-sighting-sept-29_cbc-oct-1-2016-headline2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/10/05/tracking-western-alaskan-polar-bears-in-the-beaufort-in-sept-all-3-chose-canada/https://polarbearscience.com/wp-content/uploads/2016/10/beaufort-tracking-usgs-bear-movements-september-2016-sm.jpgbeaufort-tracking-usgs-bear-movements-september-2016-smOriginal caption: "Movements of 3 satellite-tagged polar bears for the month of September, 2016. Polar bears were tagged in 2016 on the spring-time sea ice of the southern Beaufort Sea. All 3 of these bears have satellite collar transmitters. Polar bear satellite telemetry data are shown with AMSR2 remotely-sensed ice coverage from 29 September, 2016. " [Note that the circles with the polar bear icons are the end points (final positions for the month), while the tail ends of the strings are the positions at the first of the month]. See original large image here..https://polarbearscience.com/wp-content/uploads/2016/10/ec_polarbearstatusmapcanada_oct-26-2014_direct.jpgec_polarbearstatusmapcanada_oct-26-2014_directhttps://polarbearscience.com/wp-content/uploads/2016/10/beaufort-tracking-usgs-bear-movements-september-2016-lg-closeup.jpgbeaufort-tracking-usgs-bear-movements-september-2016-lg-closeup2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/10/11/in-case-you-missed-it-writer-james-delingpole-puts-my-novel-in-context/https://polarbearscience.com/wp-content/uploads/2016/10/delingpole-8-oct-2016-headline.jpgdelingpole-8-oct-2016-headline2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/10/13/arctic-sea-ice-grows-churchill-polar-bears-into-their-4th-month-of-fasting/https://polarbearscience.com/wp-content/uploads/2016/10/r11_central_arctic_ts_4km-2016-oct-12.pngr11_central_arctic_ts_4km-2016-oct-12https://polarbearscience.com/wp-content/uploads/2016/10/2016-july-11_17_bears-off-the-ice.jpg2016-july-11_17_bears-off-the-icehttps://polarbearscience.com/wp-content/uploads/2016/10/2016-july-18_24_week-2.jpg2016-july-18_24_week-2https://polarbearscience.com/wp-content/uploads/2016/10/2016-july-25_31_week-3.jpg2016-july-25_31_week-3https://polarbearscience.com/wp-content/uploads/2016/10/2016-aug-1-7_week-4.jpg2016-aug-1-7_week-4https://polarbearscience.com/wp-content/uploads/2016/10/2016-aug-8-14_week-5.jpg2016-aug-8-14_week-5https://polarbearscience.com/wp-content/uploads/2016/10/2016-aug-15-21_week-6.jpg2016-aug-15-21_week-6https://polarbearscience.com/wp-content/uploads/2016/10/2016-aug-22-28_week-7.jpg2016-aug-22-28_week-7https://polarbearscience.com/wp-content/uploads/2016/10/2016-aug-29-sept-4_week-8.jpg2016-aug-29-sept-4_week-8https://polarbearscience.com/wp-content/uploads/2016/10/2016-sept-5-11_week-9.jpg2016-sept-5-11_week-92024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/10/16/kaktovik-ak-has-a-polar-bear-problem-but-not-because-bears-are-desperate-for-food/https://polarbearscience.com/wp-content/uploads/2016/10/polar_bear_family_at_bone_pile-kaktovik-20-april-2016.jpgpolar_bear_family_at_bone_pile-kaktovik-20-april-2016https://polarbearscience.com/wp-content/uploads/2016/10/polarbears-arcticnatlwildliferefuge-suzannemiller-usfws_labeled_sm.jpgpolarbears-arcticnatlwildliferefuge-suzannemiller-usfws_labeled_smhttps://polarbearscience.com/wp-content/uploads/2016/10/kaktovik-composite.jpgkaktovik-compositehttps://polarbearscience.com/wp-content/uploads/2016/10/polar_bear-us-fws_young-bear-alaska-maybe-kaktovik-no-date.jpgpolar_bear-us-fws_young-bear-alaska-maybe-kaktovik-no-datehttps://polarbearscience.com/wp-content/uploads/2016/10/pbs-newshour-headline_15-october-2016.jpgpbs-newshour-headline_15-october-20162024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/10/19/iucn-polar-bear-specialist-group-website-still-silent-on-2015-red-list-assessment/https://polarbearscience.com/wp-content/uploads/2016/10/pbsg-website_home-page-2016-nov-16-news-red-list1.jpgpbsg-website_home-page-2016-nov-16-news-red-listhttps://polarbearscience.com/wp-content/uploads/2016/10/pbsg-website-redlist-news-notice_2016-nov-16.jpgpbsg-website-redlist-news-notice_2016-nov-16https://polarbearscience.com/wp-content/uploads/2016/10/pbsg-website-notice_home-page-2016-oct-18.jpgpbsg-website-notice_home-page-2016-oct-18https://polarbearscience.com/wp-content/uploads/2016/10/pbsg-website-notice_2016-oct-15.jpgpbsg-website-notice_2016-oct-15https://polarbearscience.com/wp-content/uploads/2016/10/pbsg-website-notice_2016-jan-14-update.jpgpbsg-website-notice_2016-jan-14-updatehttps://polarbearscience.com/wp-content/uploads/2016/10/pbsg-website-notice_2016-oct-12.jpgpbsg-website-notice_2016-oct-122024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/10/21/fall-arctic-ice-growth-often-differs-regionally-2016-compared-to-other-years/https://polarbearscience.com/wp-content/uploads/2016/10/masie_all_r00_v01_2006304_4km.pngmasie_all_r00_v01_2006304_4kmhttps://polarbearscience.com/wp-content/uploads/2016/10/masie_all_r00_v01_2007304_4km.pngmasie_all_r00_v01_2007304_4kmhttps://polarbearscience.com/wp-content/uploads/2016/10/masie_all_r00_v01_2012305_4km.pngmasie_all_r00_v01_2012305_4kmhttps://polarbearscience.com/wp-content/uploads/2016/10/masie_all_r00_v01_2013304_4km.pngmasie_all_r00_v01_2013304_4kmhttps://polarbearscience.com/wp-content/uploads/2016/10/masie_all_r00_v01_2015304_4km.pngmasie_all_r00_v01_2015304_4kmhttps://polarbearscience.com/wp-content/uploads/2016/10/79-th-parallel-north_wikipedia.jpg79-th-parallel-north_wikipediahttps://polarbearscience.com/wp-content/uploads/2016/10/masie-sea-ice-2016-oct-20-cropped-and-marked_polarbearscience.jpgmasie-sea-ice-2016-oct-20-cropped-and-marked_polarbearsciencehttps://polarbearscience.com/wp-content/uploads/2016/10/sea-ice-extent-canada-2016-oct-21_cis.gifsea-ice-extent-canada-2016-oct-21_cis2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/11/01/if-experts-had-bee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caption: “Movements of 3 satellite-tagged polar bears for the month of October, 2016. Polar bears were tagged in 2016 on the spring-time sea ice of the southern Beaufort Sea. All 3 of these bears have satellite collar transmitters. Polar bear satellite telemetry data are shown with AMSR2 remotely-sensed ice coverage from 29 October, 2016.” See full resolution image here.https://polarbearscience.com/wp-content/uploads/2016/11/beaufort-tracking-usgs-bear-movements-october-2016-lg-closeup.jpgbeaufort-tracking-usgs-bear-movements-october-2016-lg-closeuphttps://polarbearscience.com/wp-content/uploads/2016/11/beaufort-sea_alaska_same-week-29-oct-1968-2016.pngbeaufort-sea_alaska_same-week-29-oct-1968-2016https://polarbearscience.com/wp-content/uploads/2016/11/beaufort-sea_regional_same-week-29-oct-1968-2016.pngbeaufort-sea_regional_same-week-29-oct-1968-20162024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/11/07/ice-formation-in-w-hudson-bay-slower-than-2015-but-not-likely-as-slow-as-1983/https://polarbearscience.com/wp-content/uploads/2016/11/hudson-bay_nw-same-week-29-oct-1971-2016.pnghudson-bay_nw-same-week-29-oct-1971-2016https://polarbearscience.com/wp-content/uploads/2016/11/sea-ice-extent-canada-cis_nov-12-2012.gifsea-ice-extent-canada-cis_nov-12-2012https://polarbearscience.com/wp-content/uploads/2016/11/canadian-arctic-nov-7-2015_cis.gifcanadian-arctic-nov-7-2015_cishttps://polarbearscience.com/wp-content/uploads/2016/11/sea-ice-extent-canada-2016-nov-7_cis.gifsea-ice-extent-canada-2016-nov-7_cis2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/11/07/polar-bear-alert-report-for-1st-week-of-november-2016-churchill-manitoba/https://polarbearscience.com/wp-content/uploads/2016/11/stirling-et-al-1977-whb-map_cropped.jpgstirling-et-al-1977-whb-map_croppedhttps://polarbearscience.com/wp-content/uploads/2016/11/2016-oct-31-nov-6_week-17_week-11-missing.jpg2016-oct-31-nov-6_week-17_week-11-missing2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/11/08/bbc-arctic-live-for-viewers-outside-the-uk-watch-scientist-distort-polar-bear-facts/https://polarbearscience.com/wp-content/uploads/2016/11/bbc-live-ii-fat-polar-bear-03.jpgbbc-live-ii-fat-polar-bear-032024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/11/09/will-trump-reverse-esa-decisions-listing-polar-bears-arctic-seals-as-threatened/https://polarbearscience.com/wp-content/uploads/2016/11/future-of-arctic-species-status-under-trump-presidency-9-nov-2016.jpgfuture-of-arctic-species-status-under-trump-presidency-9-nov-20162024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/11/15/no-correlation-between-freeze-up-dates-for-hudson-bay-total-arctic-ice-cover/https://polarbearscience.com/wp-content/uploads/2016/11/masie_all_r10_v01_2007316_4km.pngmasie_all_r10_v01_2007316_4kmhttps://polarbearscience.com/wp-content/uploads/2016/11/masie_all_r10_v01_2012317_4km.pngmasie_all_r10_v01_2012317_4kmhttps://polarbearscience.com/wp-content/uploads/2016/11/masie_all_r10_v01_2010316_4km.pngmasie_all_r10_v01_2010316_4kmhttps://polarbearscience.com/wp-content/uploads/2016/11/masie_all_r10_v01_2006316_4km.pngmasie_all_r10_v01_2006316_4kmhttps://polarbearscience.com/wp-content/uploads/2016/11/masie_all_r10_v01_2015316_4km.pngmasie_all_r10_v01_2015316_4kmhttps://polarbearscience.com/wp-content/uploads/2016/11/masie_all_r10_v01_2016317_4km.pngmasie_all_r10_v01_2016317_4kmhttps://polarbearscience.com/wp-content/uploads/2016/11/sea-ice-at-14-nov-2016_vs-2012_2010_nsidc-interactive.jpgsea-ice-at-14-nov-2016_vs-2012_2010_nsidc-interactivehttps://polarbearscience.com/wp-content/uploads/2016/11/r10_hudson_bay_ts_4km-to-2016-nov-14.pngr10_hudson_bay_ts_4km-to-2016-nov-14https://polarbearscience.com/wp-content/uploads/2016/11/sea-ice-sept-averages-graph-only-marked-for-2006-up.jpgsea-ice-sept-averages-graph-only-marked-for-2006-uphttps://polarbearscience.com/wp-content/uploads/2016/11/lunn-et-al-2016-whb-freezeup-dates-marked.jpglunn-et-al-2016-whb-freezeup-dates-marked2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/11/18/no-correlation-between-freeze-up-dates-for-whb-sea-ice-churchill-temperatures/https://polarbearscience.com/wp-content/uploads/2016/11/polar-bear-tests-thin-ice_mario-hoppmann_noaa-funded-imaggeo-egu-eu.jpgpolar-bear-tests-thin-ice_mario-hoppmann_noaa-funded-imaggeo-egu-euhttps://polarbearscience.com/wp-content/uploads/2016/11/hudson-bay-freeze-up-2016-northern-hudson-bay-nov-17.gifhudson-bay-freeze-up-2016-northern-hudson-bay-nov-17https://polarbearscience.com/wp-content/uploads/2016/11/sea-ice-extent-canada-2016-nov-18_cis.gifsea-ice-extent-canada-2016-nov-18_cishttps://polarbearscience.com/wp-content/uploads/2016/11/churchill-weather-2016-abnormal-cold-17-23-nov.jpgchurchill-weather-2016-abnormal-cold-17-23-novhttps://polarbearscience.com/wp-content/uploads/2016/11/churchill-weather-averages-and-extremes-2016-ec-14-nov.jpgchurchill-weather-averages-and-extremes-2016-ec-14-nov2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/11/24/history-of-anxiety-over-sea-ice-gets-a-video/2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/12/05/an-el-nino-year-late-start-to-freeze-up-on-hudson-bay-bears-gearing-up-to-hunt/https://polarbearscience.com/wp-content/uploads/2016/12/2016-nov-28-dec-4_week-21_week-11-missing.jpg2016-nov-28-dec-4_week-21_week-11-missinghttps://polarbearscience.com/wp-content/uploads/2016/12/sea-ice-extent-canada-2016-dec-5_cis.gifsea-ice-extent-canada-2016-dec-5_cis2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/12/07/polar-bears-that-didnt-die-from-recent-sea-ice-loss-will-die-in-35-yrs-say-sperts/https://polarbearscience.com/wp-content/uploads/2016/12/amstrup-et-al-2011-fig-1-ecoregions_sm.jpgamstrup-et-al-2011-fig-1-ecoregions_smPurple and green indicate regions where USGS experts said polar bears would be GONE if sea ice dropped to 5 mkm2 or less for a decadehttps://polarbearscience.com/wp-content/uploads/2016/12/crystalball_468x317_predictions_sq.jpgcrystalball_468x317_predictions_sq2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/12/07/hudson-bay-could-be-ice-free-in-winter-within-5-10-years-says-seal-researcher/https://polarbearscience.com/wp-content/uploads/2016/12/ringed-seal-noaa.jpgRinged Seals Critical HabitatIn this undated photo released by NOAA Fisheries is a ringed seal. A federal agency has proposed about 350,000 square miles of ocean off Alaska's north and west coasts as critical habitat for the seal that's the main prey of polar bears. The National Oceanic and Atmospheric Administration announced Tuesday, Dec. 2, 2014, that it's proposing much of the Bering, Chukchi and Beaufort seas within U.S. jurisdiction as critical habitat for ringed seals. (AP Photo/NOAA Fisheries)2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/12/16/w-hudson-bay-had-1030-polar-bears-at-last-count-and-that-is-the-official-number/https://polarbearscience.com/wp-content/uploads/2016/12/hudson-bay_same-week-nw-hudson-bay-11-dec-1971-2016.pnghudson-bay_same-week-nw-hudson-bay-11-dec-1971-2016https://polarbearscience.com/wp-content/uploads/2016/12/sea-ice-extent-canada-2016-dec-16_cis.gifsea-ice-extent-canada-2016-dec-16_cishttps://polarbearscience.com/wp-content/uploads/2016/12/western-hudson-bay-surveys-2011-compared_polarbearscience-16-dec-20161.jpgwestern-hudson-bay-surveys-2011-compared_polarbearscience-16-dec-20162024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/12/17/polar-bear-facts-myths-now-available-and-may-arrive-in-time-for-christmas/https://polarbearscience.com/wp-content/uploads/2016/12/os_small.jpgos_smallhttps://polarbearscience.com/wp-content/uploads/2016/12/fm_small.jpgfm_smallhttps://polarbearscience.com/wp-content/uploads/2016/12/facts-and-myths-small.jpgfacts-and-myths-small2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/12/21/as-polar-bear-populations-fail-to-decline-with-sea-ice-message-of-doom-intensifies/https://polarbearscience.com/wp-content/uploads/2016/12/christmas-2016-polarbearscience-small_221596618.jpgchristmas-2016-polarbearscience-small_221596618https://polarbearscience.com/wp-content/uploads/2016/12/barents-sea-ice-2016-dec-20_nis.pngbarents-sea-ice-2016-dec-20_nishttps://polarbearscience.com/wp-content/uploads/2016/12/sea-ice-prediction-vs-reality-2012_polarbearscience3.jpgsea-ice-prediction-vs-reality-2012_polarbearsciencehttps://polarbearscience.com/wp-content/uploads/2016/12/sea-ice-extent-canada-2016-dec-7_cis-pbs-leaving-churchill-for-the-ice.gifsea-ice-extent-canada-2016-dec-7_cis-pbs-leaving-churchill-for-the-icehttps://polarbearscience.com/wp-content/uploads/2016/12/svalbard-females-shift-to-fjl-2016-9-dec-sea-ice.jpgsvalbard-females-shift-to-fjl-2016-9-dec-sea-icehttps://polarbearscience.com/wp-content/uploads/2016/12/map-barentssea.jpgmap-barentsseahttps://polarbearscience.com/wp-content/uploads/2016/12/hudson-bay_same-week-nw-hudson-bay-11-dec-1971-20161.pnghudson-bay_same-week-nw-hudson-bay-11-dec-1971-20162024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2016/12/30/polar-bear-habitat-update-and-attempts-to-spoil-the-good-news-for-kids/https://polarbearscience.com/wp-content/uploads/2016/12/canadian-arctic-dec-30-2015_cis.gifcanadian-arctic-dec-30-2015_cishttps://polarbearscience.com/wp-content/uploads/2016/12/sea-ice-extent-canada-2016-dec30_cis.gifsea-ice-extent-canada-2016-dec30_cis2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2017/01/02/polar-bear-habitat-message-for-the-year-end-2016-arctic-ice-extent-same-as-2010/https://polarbearscience.com/wp-content/uploads/2017/01/masie_all_zoom_4km-2017-jan-1.pngmasie_all_zoom_4km-2017-jan-1https://polarbearscience.com/wp-content/uploads/2017/01/sea-ice-extent-canada-2017-jan-1_cis.gifsea-ice-extent-canada-2017-jan-1_cishttps://polarbearscience.com/wp-content/uploads/2017/01/masie_all_r00_v01_2010_365_4km-cropped.jpgmasie_all_r00_v01_2010_365_4km-croppedhttps://polarbearscience.com/wp-content/uploads/2017/01/sea-ice-extent_dec-31-2016_nsidc.pngsea-ice-extent_dec-31-2016_nsidchttps://polarbearscience.com/wp-content/uploads/2017/01/sea-ice-at-31-dec-2016_vs-2010_nsidc-interactive.jpgsea-ice-at-31-dec-2016_vs-2010_nsidc-interactive2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2017/01/03/announcing-the-release-of-polar-bears-outstanding-survivors-of-climate-change/https://polarbearscience.com/wp-content/uploads/2017/01/pbs-have-big-feet-front-cover-2-jan-2017-thumbnail.jpgpbs-have-big-feet-front-cover-2-jan-2017-thumbnailhttps://polarbearscience.com/wp-content/uploads/2016/12/os_thumbnail.jpgos_thumbnail2024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2017/01/06/communicating-polar-bear-science-requires-a-rational-approach/https://polarbearscience.com/wp-content/uploads/2017/01/crockford_outstanding-survivors_lecture-vs-book-jan-2017.jpgcrockford_outstanding-survivors_lecture-vs-book-jan-20172024-10-28T17:27:49+00:00monthlyhttps://polarbearscience.com/2015/11/18/iucn-red-list-says-global-polar-bear-population-is-22000-31000-26000/https://polarbearscience.com/wp-content/uploads/2015/11/iucn-red-list-2015.jpgIUCN Red List 2015https://polarbearscience.com/wp-content/uploads/2015/11/crockford-official-polar-bear-numbers-to-2015_iucn-concurrs-nov-18.jpgCrockford OFFICIAL polar bear numbers to 2015_IUCN concurrs Nov 18https://polarbearscience.com/wp-content/uploads/2015/11/google-pb-assessment_by-eol.jpgGoogle Pb assessment_by EOL2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2015/11/19/only-a-70-chance-that-polar-bear-numbers-will-decline-by-30-by-2050/2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2015/11/21/iucn-red-book-officials-forced-scientific-standards-on-polar-bear-predictive-models/https://polarbearscience.com/wp-content/uploads/2015/11/pbsg2014-group2.jpgPBSG2014-group2https://polarbearscience.com/wp-content/uploads/2015/11/2008-iucn-red-list-pb-report-details.jpg2008 IUCN Red List PB report detailshttps://polarbearscience.com/wp-content/uploads/2015/11/2015-iucn-red-list-pb-report-details.jpg2015 IUCN Red List Pb report detailshttps://polarbearscience.com/wp-content/uploads/2015/11/iucn-red-list-pb-trend-nov-20-2015.jpgIUCN Red List PB trend Nov 20 20152024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2015/11/23/russian-polar-bear-scientist-critical-of-using-radio-collars/2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2015/11/25/w-hudson-bay-polar-bears-now-on-the-ice-hunting-but-killer-whales-could-be-trapped/https://polarbearscience.com/wp-content/uploads/2015/11/canadian-arctic-nov-26-2015_cis.gifCanadian Arctic Nov 26 2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/11/canadian-arctic-nov-25-2015_cis.gifCanadian Arctic Nov 25 2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/11/sea-ice-extent-canada-2012_-hudson-bay-freeze-up-nov-30-2012.gifSea ice extent Canada 2012_ Hudson Bay freeze-up Nov 30 2012https://polarbearscience.com/wp-content/uploads/2015/11/sea-ice-canada-25-nov-2015_with-churchill.jpgSea ice Canada 25 Nov 2015_with Churchill2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2015/12/01/polar-bear-habit-update-day-333-arctic-sea-ice-hits-11-1-mkm2/https://polarbearscience.com/wp-content/uploads/2015/11/barents-sea-ice-extent-2009-november-30_nis.jpgBarents Sea ice extent 2009 November 30_NIShttps://polarbearscience.com/wp-content/uploads/2015/11/barents-sea-ice-extent-2013-november-29_nis.jpgBarents Sea ice extent 2013 November 29_NIShttps://polarbearscience.com/wp-content/uploads/2015/11/barents-sea-ice-extent-2014-dec-1_nis.pngBarents Sea ice extent 2014 Dec 1_NIShttps://polarbearscience.com/wp-content/uploads/2015/11/barents-sea-ice-extent-2015-nov-30_nis.pngBarents Sea ice extent 2015 Nov 30_NIShttps://polarbearscience.com/wp-content/uploads/2015/11/canadian-arctic-nov-30-2015_cis.gifCanadian Arctic Nov 30 2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/11/masie_all_zoom_4km-2015-day-333_nov-29.pngmasie_all_zoom_4km 2015 day 333_Nov 292024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2015/12/03/spring-sea-ice-prediction-for-next-year-off-newfoundland-extensive-ice-coverage/https://polarbearscience.com/wp-content/uploads/2015/12/swart-et-al-2015-sea-ice-pause-fig-1.jpgSwart et al 2015 sea ice pause Fig 1https://polarbearscience.com/wp-content/uploads/2015/12/sea-ice-extent-canada-2014-march-12_cis.gifSea ice extent Canada 2014 March 12_CIShttps://polarbearscience.com/wp-content/uploads/2015/12/sea-ice-extent-canada_2014-feb-19_cis.gifSea ice extent Canada_2014 Feb 19_CIShttps://polarbearscience.com/wp-content/uploads/2015/12/sea-ice-canada-2015-feb-18_cis.gifSea ice Canada 2015 Feb 18_CIShttps://polarbearscience.com/wp-content/uploads/2015/12/sea-ice-extent-canada-2015-march-12-cis.gifSea ice extent Canada 2015 March 12 CIShttps://polarbearscience.com/wp-content/uploads/2015/12/2016-newfoundland-ice-outlook-for-19-feb-2016_at-dec-1-2015.jpg2016 Newfoundland Ice outlook for 19 Feb 2016_at Dec 1 20152024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2015/12/06/paris-climate-change-deal-will-not-stop-polar-bears-dying-due-to-thick-ice-in-spring/https://polarbearscience.com/wp-content/uploads/2015/12/sea-ice-extent-2015-dec-4-nsidc.pngSea ice extent 2015 Dec 4 NSIDChttps://polarbearscience.com/wp-content/uploads/2015/12/masie_all_zoom_4km-2015-dec-4.pngmasie_all_zoom_4km 2015 Dec 4https://polarbearscience.com/wp-content/uploads/2015/12/polar_bear_2013_doc_cutout_with_snow_usgs.pngpolar_bear_2013_Doc_cutout_with_snow_USGShttps://polarbearscience.com/wp-content/uploads/2015/12/polar_bear-with-collar_usgs.gifpolar_bear with collar_USGS2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2015/12/08/amazon-reviewer-said-of-my-new-polar-bear-attack-novel-i-couldnt-put-it-down/https://polarbearscience.com/wp-content/uploads/2015/12/eaten_cover-full-sm.jpgEATEN_cover full sm2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2015/12/09/ian-stirling-uses-lifetime-award-to-repeat-flawed-predictions-for-polar-bears/https://polarbearscience.com/wp-content/uploads/2015/12/ian-stirling_full.jpgian-stirling_full2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2015/12/13/hungry-polar-bear-attacks-why-my-novel-eaten-is-set-in-early-march/https://polarbearscience.com/wp-content/uploads/2015/12/harrowing-encounter_2015-title.jpgHarrowing encounter_2015 titlehttps://polarbearscience.com/wp-content/uploads/2015/12/melt-down_terror-at-the-top-of-the-world_nov-12-2014-press-release-book-cover.jpgMelt-down_Terror at the Top of the World_Nov 12 2014 press release book coverhttps://polarbearscience.com/wp-content/uploads/2015/12/polar-bear-feeding-by-season-simple_nov-29-2015.jpgPolar bear feeding by season simple_Nov 29 20152024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2015/12/16/barents-sea-polar-bears-adapt-to-changing-sea-ice-conditions/https://polarbearscience.com/wp-content/uploads/2015/12/barents-sea-pb-count_cobbing-photo-2015_aars-and-andersson_sm.jpg) Ei binne er immobilisert og får påført et satellitthalsbånd. En 7 måneder gammel unge ser påMagnus Anderson and Jon Aars observe a female polar bear and her cub waiting for the tranquilliser to have its full effect so that they can start work taking samples from the bear safely.https://polarbearscience.com/wp-content/uploads/2015/12/barents-sea-with-franz-josef-land.jpgBarents Sea with Franz Josef Landhttps://polarbearscience.com/wp-content/uploads/2015/12/andersen-et-al-2012-w-derocher_svalbard-dens_fig-1.jpgAndersen et al 2012 w Derocher_Svalbard dens_fig 1Polar bear denning areas found around Svalbard from 1972-2010, from Andersen et al. 2012.https://polarbearscience.com/wp-content/uploads/2015/12/barents-sea-ice-2015-dec-2_nis_sm.jpgBarents Sea ice 2015 Dec 2_NIS_sm2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2015/12/17/hudson-strait-and-davis-strait-polar-bear-habitat-highest-since-1993/https://polarbearscience.com/wp-content/uploads/2015/12/sea-ice-extent-2015-dec-15-nsidc.pngSea ice extent 2015 Dec 15 NSIDChttps://polarbearscience.com/wp-content/uploads/2015/12/canadian-arctic-dec-16-2015_cis.gifCanadian Arctic Dec 16 2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/12/1992-end-november_nsidc.jpg1992 end November_NSIDChttps://polarbearscience.com/wp-content/uploads/2015/12/1983-end-november_nsidc.jpg1983 end November_NSIDChttps://polarbearscience.com/wp-content/uploads/2015/12/2015-end-november_nsidc.jpg2015 end November_NSIDChttps://polarbearscience.com/wp-content/uploads/2015/12/hudson-bay-same-week-11-dec-1971-2015.pngHudson Bay same week 11 Dec 1971-2015https://polarbearscience.com/wp-content/uploads/2015/12/hudson-bay-strait-same-week-11-dec-1971-2015.pngHudson Bay Strait same week 11 Dec 1971-2015https://polarbearscience.com/wp-content/uploads/2015/12/davis-strait-same-week-11-dec-1971-2015.pngDavis Strait same week 11 Dec 1971-2015https://polarbearscience.com/wp-content/uploads/2015/12/canadian-arctic-dec-11-2015_cis.gifCanadian Arctic Dec 11 2015_CIS2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2015/12/21/organizations-fail-to-acknowledge-2015-red-list-polar-bear-assessment-info/https://polarbearscience.com/wp-content/uploads/2015/12/pbsg-news-at-21-dec-2015.jpgPBSG News at 21 Dec 2015https://polarbearscience.com/wp-content/uploads/2015/12/wwf-canada_polar-bear-at-21-dec-2015.jpgWWF Canada_polar bear at 21 Dec 2015https://polarbearscience.com/wp-content/uploads/2015/12/eol_polar-bear_at-21-dec-2015-listed-by-google.jpgEOL_polar bear_at 21 Dec 2015 listed by Google2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2015/12/22/some-polar-bears-make-poor-choices-like-this-one-in-james-bay/https://polarbearscience.com/wp-content/uploads/2015/12/canadian-arctic-dec-21-2015_cis.gifCanadian Arctic Dec 21 2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/12/sea-ice-extent-2015-dec-21-nsidc.pngSea ice extent 2015 Dec 21 NSIDChttps://polarbearscience.com/wp-content/uploads/2015/12/masie_all_zoom_4km-2015-dec-21.pngmasie_all_zoom_4km 2015 Dec 21https://polarbearscience.com/wp-content/uploads/2015/12/hudson-bay-freezeup-2015-at-dec-18-masie-closeup.jpgHudson Bay freezeup 2015 at Dec 18 MASIE closeuphttps://polarbearscience.com/wp-content/uploads/2015/12/canadian-arctic-dec-18-2015_cis.gifCanadian Arctic Dec 18 2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/12/moose-factory_polar-bear-in-dump_cbc-dec-22-2015.jpgMoose Factory_polar-bear-in-dump_CBC Dec 22 2015https://polarbearscience.com/wp-content/uploads/2015/12/moose-factory_wikipedia.jpgMoose Factory_Wikipedia2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2015/12/23/survey-results-svalbard-polar-bear-numbers-increased-42-over-last-11-years/https://polarbearscience.com/wp-content/uploads/2015/12/map-barentssea.jpgmap-BarentsSeahttps://polarbearscience.com/wp-content/uploads/2015/12/svalbard-polar-bear-fall-2015_aars.jpgSvalbard polar bear fall 2015_Aars2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2015/12/31/2015-was-a-great-year-for-polar-bears-and-for-eaten/https://polarbearscience.com/wp-content/uploads/2015/12/polar_bear570-ontario-ministry-of-natural-resources.jpgpolar_bear570 ONTARIO MINISTRY OF NATURAL RESOURCES2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2016/01/05/tracking-polar-bears-in-the-beaufort-sea-one-tagged-bear-left-at-year-end-2015/https://polarbearscience.com/wp-content/uploads/2016/01/beaufort-tracking-usgs-bear-movements-december-2015-sm.jpgBeaufort tracking USGS bear-movements-December 2015 smhttps://polarbearscience.com/wp-content/uploads/2016/01/map_of_the_arctic_with-bathymetry-2-608x400_arctic-council_lg1.pngMap_of_the_Arctic_with bathymetry-2-608x400_Arctic Council_lgCourtesy the Arctic Council 2009, via Wikipedia. This map clearly shows the shallow regions of the Arctic - note how shallow Hudson Bay is and how large the area of shallow continental shelf is off Russia, Norway and the Bering Strait. https://polarbearscience.com/wp-content/uploads/2016/01/beaufort-tracking-usgs-bear-movements-november-2015-sm.jpgBeaufort tracking USGS bear-movements-November 2015 sm2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2016/01/09/paleoclimate-genetic-study-confirms-arctic-species-adapted-to-sea-ice-changes/https://polarbearscience.com/wp-content/uploads/2016/01/cronin-and-cronin-2015_fig6.gifCronin and Cronin 2015_fig6https://polarbearscience.com/wp-content/uploads/2016/01/cronin-and-cronin-2015_fig5.gifCronin and Cronin 2015_fig52024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2016/01/14/nunavut-survivor-describes-what-a-polar-bear-attack-is-like/https://polarbearscience.com/wp-content/uploads/2016/01/pb-resting_patrick-kelly-23-august-2009_uscoast-guard_sm.jpgPolar BearA polar bear rests on the ice Aug. 23, 2009, after following the Coast Guard Cutter Healy for nearly an hour.https://polarbearscience.com/wp-content/uploads/2016/01/kimmirut-nunavut_google-maps.jpgKimmirut Nunavut_Google maps2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2016/01/14/genetic-similarity-of-polar-bears-does-not-make-them-vulnerable-to-global-warming/2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2016/01/18/the-old-website-revision-excuse-for-not-updating-polar-bear-status-changes/https://polarbearscience.com/wp-content/uploads/2016/01/eol_polar-bear_at-16-jan-2016-listed-by-google.jpgEOL_polar bear_at 16 Jan 2016 listed by Googlehttps://polarbearscience.com/wp-content/uploads/2016/01/psb-tweet_re-iucn-pbsg-red-list_14-jan-2016.jpgPSB tweet_re IUCN PBSG Red List_14 Jan 2016https://polarbearscience.com/wp-content/uploads/2016/01/pbsg-website-notice_2016-jan-14-update.jpgPBSG website notice_2016 Jan 14 update2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2016/01/20/human-sees-cute-polar-bear-sees-dinner/https://polarbearscience.com/wp-content/uploads/2016/01/harp-sea-newborn_wikipedia.jpgHarp sea newborn_wikipediahttps://polarbearscience.com/wp-content/uploads/2016/01/harp-and-hooded-seal-pupping-areas-and-distribution_stenson-2014-fig-1.jpgHarp and hooded seal pupping areas and distribution_Stenson 2014 fig 12024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2016/01/23/polar-bear-survival-habitat-2013-vs-2016-for-22-january/https://polarbearscience.com/wp-content/uploads/2016/01/svalbard-sea-ice-extent-2013-jan-22_nis.pngSvalbard sea ice extent 2013 Jan 22_NIShttps://polarbearscience.com/wp-content/uploads/2016/01/svalbard-sea-ice-extent-2016-jan-22_nis.pngSvalbard sea ice extent 2016 Jan 22_NIShttps://polarbearscience.com/wp-content/uploads/2016/01/sea-ice-extent-2016-jan-22-nsidc_sm.pngSea ice extent 2016 Jan 22 NSIDC_smhttps://polarbearscience.com/wp-content/uploads/2016/01/sea-ice-extent-2013-jan-22-nsidc.jpgSea ice extent 2013 Jan 22 NSIDChttps://polarbearscience.com/wp-content/uploads/2016/01/sea-ice-extent-2016-jan-22-nsidc.pngSea ice extent 2016 Jan 22 NSIDC2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2016/01/27/polar-bear-habitat-at-26-january-2016/https://polarbearscience.com/wp-content/uploads/2016/01/polar-bear-habitat-at-26-jan-2016_no-bears-marked_polarbearscience_sm.jpgPolar bear habitat at 26 Jan 2016_no bears marked_PolarBearScience_smhttps://polarbearscience.com/wp-content/uploads/2016/01/canadian-arctic-jan-27-2016_cis.gifCanadian Arctic Jan 27 2016_CIShttps://polarbearscience.com/wp-content/uploads/2016/01/masie_all_zoom_4km-2016-jan-26.pngmasie_all_zoom_4km 2016 Jan 262024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2016/01/28/polar-bears-rarely-come-ashore-in-january-but-one-did-on-tuesday/https://polarbearscience.com/wp-content/uploads/2016/01/polar-bear-stock-image-gg66298544_sm.jpgPolar Bear stock image gg66298544_smhttps://polarbearscience.com/wp-content/uploads/2016/01/fogo_on-fogo-island-newfoundland-details.jpgFogo_on Fogo Island Newfoundland details2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2016/02/02/many-otherwise-intelligent-people-believe-only-a-few-hundred-polar-bears-remain/https://polarbearscience.com/wp-content/uploads/2016/02/polar-bears-3-large_usgs.jpgpolar-bears-3-large_USGShttps://polarbearscience.com/wp-content/uploads/2016/02/thin-ice-lisa-robbins-sept-15-usgs_032.jpgThin ice Lisa Robbins Sept 15 USGS_03https://polarbearscience.com/wp-content/uploads/2016/02/thin-ice-lisa-robbins-sept-15-usgs_02.jpgThin ice Lisa Robbins Sept 15 USGS_022024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2016/02/05/polar-bear-myths-perpetuate-from-the-mouth-of-stuck-in-the-past-ian-stirling/https://polarbearscience.com/wp-content/uploads/2016/02/stirling_ua-faculty-page-photo-accessed-july-22-2012.jpgstirling_UA faculty page photo accessed July 22 2012https://polarbearscience.com/wp-content/uploads/2016/02/ec_polarbearstatus_and-trends_2010-2014-mapscanada_oct-26-2014.jpgEC_PolarBearStatus_and Trends_2010-2014 MapsCanada_Oct 26 2014Figure 2: Global polar bear population status assessment even better than this. Figures from the IUCN Polar Bear Specialist Group assessment (2013) and Environment Canada (May 2014). Brown, data deficient; red, declining; yellow, likely decline; light blue, likely stable; dark blue, stable; light green, likely increase; dark green, increase. More recent surveys show BB, BS, KB, and KS are stable or likely increasing. https://polarbearscience.com/wp-content/uploads/2016/02/lunn-et-al-2013-breakup-freeze-up-dates-marked.jpgLunn et al 2013 breakup freeze up dates marked2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2016/02/07/polar-bears-roaming-labrador-in-winter-due-to-climate-change-says-minister/https://polarbearscience.com/wp-content/uploads/2016/02/sea-ice-2010-labrador-31-january_masie.jpgSea ice 2010 Labrador 31 January_MASIEhttps://polarbearscience.com/wp-content/uploads/2016/02/map-davisstrait.jpgmap-DavisStraithttps://polarbearscience.com/wp-content/uploads/2016/02/labrador-south-and-fogo-nfld-marked.jpgLabrador south and Fogo Nfld marked2024-10-28T17:27:48+00:00monthlyhttps://polarbearscience.com/2013/12/31/biggest-pbs-stories-of-2013-involved-polar-bear-experts-fudging-data/2024-10-28T17:27:47+00:00monthlyhttps://polarbearscience.com/2014/09/11/andrew-derocher-raises-the-starving-polar-bears-issue-in-dailymail-interview/2024-10-28T17:27:47+00:00monthlyhttps://polarbearscience.com/2013/03/13/matt-ridleys-foreword-to-my-10-good-reasons-not-to-worry-list-we-should-be-listening-to-susan-crockford/2024-10-28T17:27:46+00:00monthlyhttps://polarbearscience.com/2013/03/24/polar-bear-spin-reaches-new-heights-as-geneticists-promote-their-work/https://polarbearscience.com/wp-content/uploads/2013/03/cfact_polar_bear_billboard_cropped.jpgcfact_polar_bear_billboard_cropped2024-10-28T17:27:46+00:00monthlyhttps://polarbearscience.com/2013/04/07/the-two-faces-of-polar-bear-biologists-zac-unger-interviews-amstrup-and-stirling/2024-10-28T17:27:46+00:00monthlyhttps://polarbearscience.com/2014/01/24/amstrups-comment-on-his-starving-polar-bear-article-and-my-response/2024-10-28T17:27:46+00:00monthlyhttps://polarbearscience.com/2012/09/02/first-month-for-polar-bear-science-aug-2012/2024-10-28T17:27:45+00:00monthlyhttps://polarbearscience.com/2012/10/10/good-news-study-on-chukchi-polar-bears-is-unpublished/2024-10-28T17:27:45+00:00monthlyhttps://polarbearscience.com/2013/01/09/the-32000-population-estimate-for-polar-bears-is-not-an-error-due-to-counting-overlapping-territories-twice/2024-10-28T17:27:45+00:00monthlyhttps://polarbearscience.com/2013/01/24/pbsg-invited-wwf-and-pbi-advocates-to-its-last-polar-bear-experts-meeting/2024-10-28T17:27:45+00:00monthlyhttps://polarbearscience.com/2013/01/26/canada-under-international-pressure-to-list-polar-bears-as-threatened-so-far-holds-out/2024-10-28T17:27:45+00:00monthlyhttps://polarbearscience.com/2013/01/29/new-study-says-western-hudson-bay-polar-bears-could-spend-2-to-4-months-longer-on-shore-than-they-do-now/2024-10-28T17:27:45+00:00monthlyhttps://polarbearscience.com/2013/02/04/why-is-the-us-pushing-to-ban-polar-bear-trade-polar-bears-have-been-saved/2024-10-28T17:27:45+00:00monthlyhttps://polarbearscience.com/2013/02/05/andrew-derocher-refuses-to-accept-that-polar-bears-have-been-saved/2024-10-28T17:27:45+00:00monthlyhttps://polarbearscience.com/2013/03/02/cites-secretariat-recommends-rejecting-us-proposal-to-ban-polar-bear-trade/2024-10-28T17:27:45+00:00monthlyhttps://polarbearscience.com/2013/11/14/amstrup-compares-climate-change-to-a-titanic-for-polar-bears/2024-10-28T17:27:45+00:00monthlyhttps://polarbearscience.com/2013/11/24/canada-again-under-international-pressure-to-list-polar-bears-as-threatened/2024-10-28T17:27:45+00:00monthlyhttps://polarbearscience.com/2024/09/12/churchill-seemingly-unworried-about-polar-bears-fails-to-post-problem-bear-reports-on-social-media/2024-09-12T22:30:19+00:00monthlyhttps://polarbearscience.com/2024/08/13/western-hudson-bay-sea-ice-breakup-for-polar-bears-like-the-1980s-for-3-of-the-last-5-yrs/2024-08-13T21:47:28+00:00monthlyhttps://polarbearscience.com/2024/08/13/fatal-polar-bear-attack-in-davis-strait-last-week-important-details-being-withheld/2024-08-13T16:08:12+00:00monthlyhttps://polarbearscience.com/2024/08/01/polar-bear-boom-reported-in-east-southwest-greenland-comes-with-the-usual-problems/2024-08-02T05:10:47+00:00monthlyhttps://polarbearscience.com/2024/07/18/w-hudson-bay-sea-ice-not-going-away-anytime-soon-as-polar-bears-sit-tight-offshore/2024-07-18T09:16:13+00:00monthlyhttps://polarbearscience.com/2024/07/11/last-month-of-arctic-spring-fails-to-bring-sea-ice-to-its-knees-even-in-southern-hudson-bay/2024-07-12T01:34:17+00:00monthlyhttps://polarbearscience.com/2024/06/25/arctic-sea-ice-at-the-summer-solstice-more-polar-bear-habitat-than-2022-after-hottest-year-on-record/2024-06-25T22:52:00+00:00monthlyhttps://polarbearscience.com/2024/06/13/new-hudson-bay-sea-ice-modelling-paper-is-more-utterly-useless-fearmongering-about-polar-bears/2024-06-13T15:22:00+00:00monthlyhttps://polarbearscience.com/2024/06/09/huge-area-of-open-water-on-hudson-bay-created-by-wind-not-ice-melt-nsidc-experts-confirm/2024-06-10T00:15:14+00:00monthlyhttps://polarbearscience.com/2024/06/04/new-data-show-svalbard-polar-bears-are-fatter-than-they-were-in-1993-despite-continued-low-sea-ice/2024-06-04T14:38:42+00:00monthlyhttps://polarbearscience.com/2024/05/19/ian-stirling-grandfather-of-polar-bear-biologists-dead-at-83/2024-05-22T03:19:35+00:00monthlyhttps://polarbearscience.com/2024/04/28/polar-bears-are-going-extinct-actually-theyre-not-a-new-video-worth-watching-and-sharing/2024-04-28T16:41:34+00:00monthlyhttps://polarbearscience.com/2024/04/02/a-good-year-for-svalbard-polar-bears-due-to-abundant-sea-ice-coverage/2024-04-02T20:42:44+00:00monthlyhttps://polarbearscience.com/2024/03/25/2024-arctic-sea-ice-maximum-a-whopping-14th-below-average-following-hottest-year-since-1850/2024-03-25T20:20:44+00:00monthlyhttps://polarbearscience.com/2024/03/09/hudson-bay-polar-bears-now-considered-most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map2022-04-03T17:33:44+00:00monthlyhttps://polarbearscience.com/2022/03/31/newfoundland-polar-bear-sighting-two-days-ago-why-my-novel-was-set-on-fogo-island-in-march/https://polarbearscience.com/wp-content/uploads/2022/03/fogo-change-map.jpgfogo-change-maphttps://polarbearscience.com/wp-content/uploads/2022/03/fogo-island-polar-bear-sighting-29-march-2022-tilting-original-posted-by-rcmp-2.jpgFogo Island polar bear sighting 29 March 2022 Tilting original posted by RCMP2022-03-31T23:48:47+00:00monthlyhttps://polarbearscience.com/2022/03/28/unpacking-the-claim-that-photos-from-1950-are-soviet-soldiers-feeding-starving-polar-bears/2022-03-28T16:41:31+00:00monthlyhttps://polarbearscience.com/2022/03/22/arctic-sea-ice-maximum-extent-was-present-for-at-least-two-weeks-at-about-14-9-million-km2/2022-03-23T03:54:58+00:00monthlyhttps://polarbearscience.com/2022/03/13/good-news-for-polar-bears-and-seals-new-study-finds-multiyear-arctic-sea-ice-is-getting-thinner/2022-03-14T00:45:22+00:00monthlyhttps://polarbearscience.com/2022/03/01/polar-bear-encounter-with-dog-in-black-tickle-labrador-has-a-happy-ending-for-both/2022-03-01T19:03:54+00:00monthlyhttps://polarbearscience.com/2022/02/26/state-of-the-polar-bear-2021-polar-bears-continued-to-thrive/2022-02-26T16:02:24+00:00monthlyhttps://polarbearscience.com/2022/02/24/accepted-sea-otter-population-estimate-at-1911-as-inaccurate-as-rejected-polar-bear-estimate-for-1960s/2022-02-24T18:46:14+00:00monthlyhttps://polarbearscience.com/2022/02/23/mid-winter-polar-bear-sea-ice-habitat-is-abundant-within-range-of-long-term-average/2022-02-23T20:22:42+00:00monthlyhttps://polarbearscience.com/2022/02/17/david-attenborough-and-his-great-reset-wef-cronies-hit-a-big-canadian-roadblock/2022-02-19T17:16:11+00:00monthlyhttps://polarbearscience.com/2022/02/16/open-response-to-a-polar-bear-researcher-who-objected-to-me-attacking-their-colleagues/2022-02-16T17:23:03+00:00monthlyhttps://polarbearscience.com/2022/02/01/fact-checkers-defend-activist-scientists-because-they-agree-with-them-not-because-they-are-right/2022-02-15T01:33:53+00:00monthlyhttps://polarbearscience.com/2022/02/10/statement-of-polar-bear-population-size-estimates-by-polar-bear-scientists-in-1965/2022-02-10T19:54:26+00:00monthlyhttps://polarbearscience.com/2022/02/09/archive-of-iucn-polar-bear-specialist-group-status-and-meeting-reports-back-to-1965/2022-02-10T00:48:10+00:00monthlyhttps://polarbearscience.com/2022/01/18/fallen-icon-sir-david-attenborough-and-the-walrus-deception-is-now-available/2022-02-07T03:57:34+00:00monthlyhttps://polarbearscience.com/2022/01/31/davis-strait-polar-bears-in-eastern-canada-are-thriving-according-to-new-survey/2022-02-01T01:25:00+00:00monthlyhttps://polarbearscience.com/2022/01/28/big-difference-between-national-geos-starving-polar-bear-and-attenboroughs-falling-walrus/2022-01-28T18:53:42+00:00monthlyhttps://polarbearscience.com/2022/01/26/sir-david-attenborough-the-royal-family-and-their-ties-to-the-wwf-and-wef/2022-01-26T17:34:50+00:00monthlyhttps://polarbearscience.com/2022/01/24/polar-bears-at-kolyuchin-island-weather-station-provide-a-rare-photographers-treat/2022-01-24T07:19:38+00:00monthlyhttps://polarbearscience.com/2022/01/20/attenborough-fibbed-about-hundreds-of-dead-walrus-because-he-wanted-what-the-wef-wants/2022-01-20T17:20:59+00:00monthlyhttps://polarbearscience.com/2021/11/28/free-homeschool-guide-to-arctic-sea-ice-ecology/2022-01-19T06:42:07+00:00monthlyhttps://polarbearscience.com/2022/01/17/false-starving-polar-bear-meme-from-2019-making-social-media-rounds-with-greenland-added/2022-01-17T18:38:07+00:00monthlyhttps://polarbearscience.com/2022/01/13/east-coast-sea-ice-so-far-similar-to-last-year/2022-01-13T18:03:54+00:00monthlyhttps://polarbearscience.com/2022/01/06/remembering-the-terrorizing-belushya-guba-polar-bears-lots-of-barents-sea-ice-cover-this-year/2022-01-07T06:27:46+00:00monthlyhttps://polarbearscience.com/2022/01/02/a-mass-exodus-of-polar-bears-from-alaska-to-russia-has-taken-place-local-residents-claim/2022-01-02T20:46:04+00:00monthlyhttps://polarbearscience.com/2021/12/31/how-to-build-an-igloo-was-the-snow-house-designed-in-part-to-protect-against-polar-bears/2021-12-31T20:04:56+00:00monthlyhttps://polarbearscience.com/2021/12/20/educational-video-about-arctic-sea-ice-to-bookmark-excellent-for-adults-and-children/2021-12-21T06:52:14+00:00monthlyhttps://polarbearscience.com/2021/12/16/mid-december-polar-bear-habitat-update/2021-12-17T01:00:10+00:00monthlyhttps://polarbearscience.com/2021/12/08/promoters-of-polar-bear-catastrophe-in-hudson-bay-gloss-over-recent-good-ice-conditions/2021-12-11T22:30:16+00:00monthlyhttps://polarbearscience.com/2021/10/26/caught-on-film-polar-bear-stalks-kills-and-eats-a-svalbard-reindeer-but-climate-change-is-hardly-to-blame/2021-12-07T18:55:32+00:00monthlyhttps://polarbearscience.com/2021/12/01/higher-than-average-svalbard-sea-ice-extent-in-november-2021-has-implications-for-birth-of-cubs/2021-12-01T22:16:52+00:00monthlyhttps://polarbearscience.com/2021/11/26/sea-ice-cometh-to-hudson-bay-freeze-up-has-begun/2021-11-26T22:01:44+00:00monthlyhttps://polarbearscience.com/2021/11/24/late-freeze-up-for-w-hudson-bay-polar-bears-at-odds-with-ice-conditions-elsewhere/2021-11-25T00:34:19+00:00monthlyhttps://polarbearscience.com/2021/11/18/chukchi-sea-ice-that-didnt-melt-this-summer-is-now-2m-thick-between-wrangel-island-and-the-shore/2021-11-18T17:44:04+00:00monthlyhttps://polarbearscience.com/2021/11/14/polar-bear-habit-more-extensive-in-most-areas-of-the-arctic-compared-to-previous-years/2021-11-14T18:45:59+00:00monthlyhttps://polarbearscience.com/2021/11/11/the-hounding-of-roger-pielke-jr-amid-the-demise-of-academic-freedom-in-climate-change/2021-11-11T19:09:30+00:00monthlyhttps://polarbearscience.com/2021/11/09/conditions-were-not-golden-for-polar-bears-in-the-1980s-despite-what-activist-expert-claims/2021-11-09T20:13:57+00:00monthlyhttps://polarbearscience.com/2021/11/04/already-too-late-to-save-churchill-polar-bears-claim-a-false-ny-times-climate-change-cliche-for-cop26/2021-11-05T00:04:59+00:00monthlyhttps://polarbearscience.com/2021/11/02/polar-bear-watching-in-high-gear-near-churchill-as-everyone-waits-for-the-sea-ice-to-form/2021-11-02T18:35:22+00:00monthlyhttps://polarbearscience.com/2021/10/31/peoples-advocate-attenboroughs-goal-is-to-knee-cap-capitalism-not-save-polar-bears-walrus/2021-11-01T05:51:09+00:00monthlyhttps://polarbearscience.com/2021/10/31/global-population-size-estimates-for-polar-bears-clash-with-extinction-predictions/2021-10-31T17:43:40+00:00monthlyhttps://polarbearscience.com/2021/10/27/fact-checkers-fail-to-refute-polar-bear-number-increases-despite-extensive-expert-rhetoric/2021-10-27T10:45:28+00:00monthlyhttps://polarbearscience.com/2021/10/20/most-chukchi-sea-ice-in-20-years-means-no-walrus-feasts-for-polar-bears-at-famous-russian-cliffs/2021-10-20T17:47:10+00:00monthlyhttps://polarbearscience.com/2021/10/18/behold-the-walrus-publicity-stunt-the-wwf-calls-science/2021-10-18T17:18:30+00:00monthlyhttps://polarbearscience.com/2021/10/15/no-signs-of-a-climate-emergency-for-w-hudson-bay-polar-bears-this-year-ahead-of-un-climate-meeting/2021-10-15T21:58:22+00:00monthlyhttps://polarbearscience.com/2021/10/08/churchill-problem-polar-bear-reports-finally-completed-and-posted-online/2021-10-08T19:22:35+00:00monthlyhttps://polarbearscience.com/2021/10/07/alaska-polar-bear-researchers-claim-poor-sea-ice-limited-spring-field-work-in-2021-more-than-2019/2021-10-07T18:04:23+00:00monthlyhttps://polarbearscience.com/2021/09/30/sea-ice-growth-after-the-summer-minimum-begins-in-the-canadian-arctic-archipelago/2021-09-30T15:53:11+00:00monthlyhttps://polarbearscience.com/2021/09/27/fat-polar-bear-of-late-summer-in-arctic-canada/2021-09-27T15:32:14+00:00monthlyhttps://polarbearscience.com/2021/09/21/wrangel-island-research-team-counted-a-record-number-of-chukchi-sea-polar-bears-in-2020/2021-09-21T14:43:05+00:00monthlyhttps://polarbearscience.com/2021/09/15/still-waiting-for-two-thirds-of-polar-bears-worldwide-to-disappear-due-to-lack-of-summer-sea-ice/2021-09-15T15:29:35+00:00monthlyhttps://polarbearscience.com/2021/09/08/svalbard-polar-bear-paper-falsely-assumes-that-loss-of-genetic-diversity-has-negative-consequences/2021-09-09T05:32:20+00:00monthlyhttps://polarbearscience.com/2021/09/03/abundant-chukchi-sea-ice-explains-silence-on-walrus-haulouts-in-alaska-and-russia-so-far/2021-09-03T16:00:12+00:00monthlyhttps://polarbearscience.com/2021/09/01/my-new-science-book-for-kids-walrus-facts-myths-is-available-now/2021-09-03T15:03:56+00:00monthlyhttps://polarbearscience.com/2021/08/31/polar-bear-facts-myths-for-young-readers-in-portugal-and-brazil/2021-09-01T03:07:16+00:00monthlyhttps://polarbearscience.com/2021/08/27/no-updates-from-churchill-polar-bear-alert-program-since-july-12/2021-08-28T01:49:46+00:00monthlyhttps://polarbearscience.com/2014/01/26/churchill-polar-bears-eat-more-caribou-and-geese-now-than-in-1968-because-there-are-more-caribou-and-geese-new-research-reveals/https://polarbearscience.com/wp-content/uploads/2014/01/polarbear_caribou_rockwell_amnh_jan-22-2014_taken-july-26-2010_sm.jpgPolarbear_caribou_Rockwell_AMNH_Jan 22 2014_taken July 26 2010_smFigure 1. Polar bear feeding on a caribou carcass, taken July 26, 2010. This photo was included in one of the papers cited in the January 2014 press release (Gormezano and Rockwell 2013:3518) and was clearly taken from the air. The caption in the paper says simply, “a polar bear looks up from the recently killed caribou it was eating,” so the bear may not have killed the caribou – some other predator (wolf or grizzly) may have made the actual kill. The dark spots on the bear appear to be flies. Credit Copyright American Museum of Natural History/ R. 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seal on ice around PEI _DFO 20172021-04-13T05:38:15+00:00monthlyhttps://polarbearscience.com/2021/04/05/polar-bear-problems-onshore-in-svalbard-before-prime-feeding-season/https://polarbearscience.com/wp-content/uploads/2021/04/todalen-svalbard-25-march-2021-sighting-location.pngTodalen Svalbard 25 March 2021 sighting locationhttps://polarbearscience.com/wp-content/uploads/2021/04/svalbard-cabin-bear-sighting-fredheim_karoline-tveraen-photo_27-march-2021.jpgSvalbard cabin bear sighting Fredheim_Karoline Tveråen photo_27 March 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victoryhttps://polarbearscience.com/wp-content/uploads/2019/07/cice_combine_thick_sm_en_20190715.pngCICE_combine_thick_SM_EN_20190715https://polarbearscience.com/wp-content/uploads/2019/07/cice_combine_thick_sm_en_20190619.pngCICE_combine_thick_SM_EN_20190619https://polarbearscience.com/wp-content/uploads/2019/07/50-years-of-victory-route-murmansk-to-the-north-pole-2019.jpg50 years of victory route Murmansk to the north pole 2019https://polarbearscience.com/wp-content/uploads/2019/07/pbi-50-years-of-victory_view-from-the-bow-of-the-ship.-photo-by-dr-thea-bechshoft.pngPBI 50 years of victory_view from the bow of the ship. Photo by Dr Thea BechshoftThe view from the bow of the ship, '50 Years of Victory'. Photo by Dr. Thea Bechshoft.https://polarbearscience.com/wp-content/uploads/2019/07/50-years-of-victory_credit_quark_expeditions-fill-800x534.jpg50 years of victory_Credit_Quark_Expeditions-fill-800x534https://polarbearscience.com/wp-content/uploads/2019/07/cice_combine_thick_sm_en_20180615.pngCICE_combine_thick_SM_EN_201806152019-07-29T07:15:57+00:00monthlyhttps://polarbearscience.com/2019/05/02/dennis-prager-radio-interview-and-the-sleaziness-of-the-new-york-times/https://polarbearscience.com/wp-content/uploads/2019/05/new-york-times_10-april-2018_headline-climate-change-denialists-say-polar-bears-are-fine.jpgNew York Times_10 April 2018_Headline Climate Change Denialists Say Polar Bears Are Fine2019-05-02T21:35:18+00:00monthlyhttps://polarbearscience.com/2019/04/21/our-planet-film-crew-is-still-lying-about-walrus-cliff-deaths-update/https://polarbearscience.com/wp-content/uploads/2019/04/polar-bears-on-the-cliff-at-cape-kozhevnikov-maxim-deminov-wwf-from-siberian-times-2017.jpgPolar bears on the cliff at Cape Kozhevnikov Maxim Deminov WWF from Siberian Times 20172019-04-21T19:50:06+00:00monthlyhttps://polarbearscience.com/2019/04/17/fat-polar-bears-causing-trouble-onshore-in-labrador-plus-sightings-in-newfoundland/https://polarbearscience.com/wp-content/uploads/2019/04/newfoundland-ne-daily-concentration-2019-april-14-ice-warming.gifNewfoundland NE daily concentration 2019 April 14 ice warminghttps://polarbearscience.com/wp-content/uploads/2019/04/westleyville-polar-bear-visit_14-april-2019-joeymarie-winter-facebook.jpgWestleyville polar bear visit_14 April 2019 JoeyMarie Winter facebookhttps://polarbearscience.com/wp-content/uploads/2019/04/labrador-coast-daily-stage-of-development-2019-april-14.gifLabrador coast daily stage of development 2019 April 14https://polarbearscience.com/wp-content/uploads/2019/04/black-tickle-labrador-location.jpgBlack Tickle Labrador locationhttps://polarbearscience.com/wp-content/uploads/2019/04/wesleyville-location-nfld.jpgWesleyville location nfldhttps://polarbearscience.com/wp-content/uploads/2019/04/black-tickle-14-april-2019-tara-keefe-photo-4.jpgBlack Tickle 14 April 2019 Tara Keefe photo 4https://polarbearscience.com/wp-content/uploads/2019/04/black-tickle-14-april-2019-tara-keefe-photo-3.jpgBlack Tickle 14 April 2019 Tara Keefe photo 3https://polarbearscience.com/wp-content/uploads/2019/04/black-tickle-14-april-2019-tara-keefe-photo-2.jpgBlack Tickle 14 April 2019 Tara Keefe photo 2https://polarbearscience.com/wp-content/uploads/2019/04/black-tickle-14-april-2019-tara-keefe-photo-1.jpgBlack Tickle 14 April 2019 Tara Keefe photo 1https://polarbearscience.com/wp-content/uploads/2019/04/batteau-labrador-carrie-dyson-photo-17-april-2019.jpgBatteau-labrador Carrie Dyson photo 17 April 2019Outside Black Tickle Labrador, mid-April 2019. Carrie Dyson photo.2019-04-17T15:34:45+00:00monthlyhttps://polarbearscience.com/2019/04/03/interview-on-the-tucker-carlson-tonight-show-scheduled-for-thursday-4-april-at-8-pm-et/https://polarbearscience.com/wp-content/uploads/2019/04/carlson-interview-blog-post-header-composite-3-april-2019.jpgCarlson interview blog post header composite 3 April 2019https://polarbearscience.com/wp-content/uploads/2019/04/tucker-carlson-tonight-headliner.jpgTucker Carlson Tonight headliner2019-04-06T21:02:30+00:00monthlyhttps://polarbearscience.com/2014/02/18/graphing-polar-bear-population-estimates-over-time/https://polarbearscience.com/wp-content/uploads/2014/02/crockford_polarbearscience-1981-2013_fig3.jpgCrockford_PolarBearScience 1981-2013_Fig3Figure 3. Graph using figures from the PBSG status tables plus "inaccurate" estimates dropped between 2005 & 2013.https://polarbearscience.com/wp-content/uploads/2014/02/crockford_polarbearscience-1981-2013_fig2.jpgCrockford_PolarBearScience 1981-2013_Fig2Fig. 2 Graph using the figures listed in PBSG status tables only.https://polarbearscience.com/wp-content/uploads/2014/02/crockford_polarbearscience-1981-2013_fig11.jpgCrockford_PolarBearScience 1981-2013_Fig1Figure 1. Upper graph uses totals reported in PBSG status tables, with min/max; Lower graph uses the same figures, but adds back in the so-called "inaccurate" estimates dropped 2005-2013. The 1960 figure * is a ballpark estimate. See previous post <a href="https://polarbearscience.com/2014/02/18/graphing-polar-bear-population-estimates-over-time/" target="_blank">here</a>.2019-03-26T17:35:49+00:00monthlyhttps://polarbearscience.com/2019/03/20/podcast-of-interview-with-glenn-beck-talking-about-polar-bear-numbers/2019-03-20T18:38:41+00:00monthlyhttps://polarbearscience.com/2019/03/19/the-polar-bear-catastrophe-that-never-happened-is-now-for-sale/2019-03-19T13:53:42+00:00monthlyhttps://polarbearscience.com/2019/03/17/next-week-new-book-release-glenn-beck-interview-talking-about-polar-bear-numbers/https://polarbearscience.com/wp-content/uploads/2019/03/beck-interview-blog-post-header-draft-12-march-2019.jpgBeck interview blog post header DRAFT 12 March 2019https://polarbearscience.com/wp-content/uploads/2019/03/final-cover-15-march-2019-image-e1552686855923.jpgFinal cover 15 March 2019 image2019-03-16T20:43:58+00:00monthlyhttps://polarbearscience.com/2019/03/15/my-international-polar-bear-op-ed-at-the-financial-post-on-27-february-2019/https://polarbearscience.com/wp-content/uploads/2019/03/crockford-financial-post-opinion_photo_27-feb-2019.jpgCrockford Financial Post Opinion_photo_27 Feb 20192019-03-15T19:30:21+00:00monthlyhttps://polarbearscience.com/2019/02/27/state-of-the-polar-bear-report-2018-polar-bears-continue-to-thrive/https://polarbearscience.com/wp-content/uploads/2019/02/state-pb-2018-cover-27-feb-2019.jpgState PB 2018 cover 27 Feb 20192019-02-27T15:59:14+00:00monthlyhttps://polarbearscience.com/2019/02/24/ringed-and-bearded-seals-still-listed-as-threatened-are-still-doing-really-well/https://polarbearscience.com/wp-content/uploads/2019/02/bearded-seal_25-oct-2016_9th-circ.-backs-climate-predictions_the-guardian-headline.jpgBearded Seal_25 Oct 2016_9th Circ. Backs Climate Predictions_The Guardian headlinehttps://polarbearscience.com/wp-content/uploads/2019/02/ringed-seal-barrow-ak_brendan-kelly.jpgRinged seal Barrow AK_Brendan Kellyhttps://polarbearscience.com/wp-content/uploads/2019/02/quakenbush-looking-for-ringed-and-bearded-seals-in-chukchi-sea_11-feb-2019-adn.jpgQuakenbush looking for ringed and bearded seals in Chukchi sea_11 Feb 2019 ADN2019-02-25T17:49:20+00:00monthlyhttps://polarbearscience.com/2019/02/03/polar-bear-lecture-in-calgary-coming-up-in-april-book-friends-of-science-event-now/https://polarbearscience.com/wp-content/uploads/2019/02/2019-friends-of-science-lecture-announcement-april-10.jpg2019 Friends of Science lecture announcement April 102019-02-04T22:50:29+00:00monthlyhttps://polarbearscience.com/2019/01/08/svalbard-polar-bears-doing-fine-with-much-less-sea-ice-say-norwegian-biologists/https://polarbearscience.com/wp-content/uploads/2019/01/barents-sea-ice-extent-2019-jan-2_nis.pngbarents sea ice extent 2019 jan 2_nishttps://polarbearscience.com/wp-content/uploads/2019/01/franz_josef_land_location_wikipedia.pngfranz_josef_land_location_wikipediahttps://polarbearscience.com/wp-content/uploads/2019/01/lying-bear-shutterstock_244419640_cropped_web-size.jpglying bear shutterstock_244419640_cropped_web sizehttps://polarbearscience.com/wp-content/uploads/2019/01/svalbard-polarbear.mirror-framsenter_aars-2015-with-caption.jpgsvalbard polarbear.mirror-framsenter_aars 2015 with captionhttps://polarbearscience.com/wp-content/uploads/2019/01/svalbard-polarbear.mirror-framsenter_aars-2015.jpgsvalbard polarbear.mirror-framsenter_aars 20152019-01-08T17:15:44+00:00monthlyhttps://polarbearscience.com/2019/01/02/polar-bear-voted-newsmaker-of-the-year-in-nunavut-a-climate-change-emblem-becomes-a-symbol-of-bitter-conflict/https://polarbearscience.com/wp-content/uploads/2019/01/Polar-bear-newsmake-of-the-year_2-Jan-2019-Nunatsiaq-News.jpgPolar bear newsmake of the year_2 Jan 2019 Nunatsiaq News2019-01-02T22:37:16+00:00monthlyhttps://polarbearscience.com/2018/12/31/may-a-polar-bear-not-be-something-you-are-faced-with-in-2019/https://polarbearscience.com/wp-content/uploads/2018/12/Walking-bear_129029633_web-size.jpgWalking bear_129029633_web size2019-01-01T04:07:57+00:00monthlyhttps://polarbearscience.com/2018/12/03/canadian-polar-bears-still-not-threatened-with-extinction-says-conservation-committee/https://polarbearscience.com/wp-content/uploads/2018/12/polar-bears_gordon-court_committee-on-the-status-of-endangered-wildlife-in-canada-dec-2018.jpgPolar bears_Gordon Court_Committee on the status of endangered wildlife in Canada Dec 20182018-12-03T22:24:55+00:00monthlyhttps://polarbearscience.com/2018/11/22/hudson-bay-polar-bear-habitat-is-highest-in-more-than-two-decades-for-this-time-of-year/https://polarbearscience.com/wp-content/uploads/2018/11/churchill-problem-bears-2018-nov-12-18-e1542909918321.jpgChurchill problem bears 2018 Nov 12-18https://polarbearscience.com/wp-content/uploads/2018/11/hudson-bay-weekly-stage-of-development-2017-nov-20.gifHudson Bay weekly stage of development 2017 Nov 20https://polarbearscience.com/wp-content/uploads/2018/11/hudson-bay-weekly-stage-of-development-2012-nov-221.gifHudson Bay weekly stage of development 2012 Nov 22https://polarbearscience.com/wp-content/uploads/2018/11/hudson-bay-weekly-stage-of-development-2016-nov-21.gifHudson Bay weekly stage of development 2016 Nov 21https://polarbearscience.com/wp-content/uploads/2018/11/hudson-bay-weekly-stage-of-development-2007-nov-19.gifHudson Bay weekly stage of development 2007 Nov 19https://polarbearscience.com/wp-content/uploads/2018/11/hudson-bay-weekly-stage-of-development-2012-nov-22.gifHudson Bay weekly stage of development 2012 Nov 22https://polarbearscience.com/wp-content/uploads/2018/11/hudson-bay-weekly-stage-of-development-2006-nov-20.gifHudson Bay weekly stage of development 2006 Nov 20https://polarbearscience.com/wp-content/uploads/2018/11/hudson-bay-weekly-stage-of-development-2005-nov-21.gifHudson Bay weekly stage of development 2005 Nov 21https://polarbearscience.com/wp-content/uploads/2018/11/hudson-bay-weekly-stage-of-development-2004-nov-22.gifHudson Bay weekly stage of development 2004 Nov 22https://polarbearscience.com/wp-content/uploads/2018/11/hudson-bay-same-week-graph-to-2018-at-nov-19.gifHudson Bay same week graph to 2018 at Nov 192018-11-22T18:07:21+00:00monthlyhttps://polarbearscience.com/2018/11/07/polar-bears-waiting-for-ice-on-russian-coast-of-chukchi-sea-threaten-village-residents/https://polarbearscience.com/wp-content/uploads/2018/11/mother-with-cubs-russia_shutterstock_71694292_web-size.jpgMother with cubs Russia_shutterstock_71694292_web sizehttps://polarbearscience.com/wp-content/uploads/2018/11/chukchi-sea-chukotka-sea-ice-at-6-november-2018-e1541619141760.jpgChukchi Sea Chukotka sea ice at 6 November 2018https://polarbearscience.com/wp-content/uploads/2018/11/chukotka-polar-bear-problems_7-november-2018.jpgChukotka polar bear problems_7 November 20182018-11-07T20:06:40+00:00monthlyhttps://polarbearscience.com/2018/07/30/churchill-problem-polar-bear-report-for-week-3-july-23-29-2018/https://polarbearscience.com/wp-content/uploads/2018/07/hudson-bay-nw-same-week_-ice-coverage-23-july-1971-2018-with-trend.pngHudson Bay NW same week_ ice coverage 23 July 1971-2018 with trendhttps://polarbearscience.com/wp-content/uploads/2018/07/2015-july-20_26_week-3-e1533015691488.jpg2015 July 20_26_week 3https://polarbearscience.com/wp-content/uploads/2018/07/2016-july-25_31_week-3-e1533015630699.jpg2016 July 25_31_week 3https://polarbearscience.com/wp-content/uploads/2018/07/churchill-pb-reports_week-3_-july-24-30_2017-e1533015548174.jpgChurchill PB reports_week 3_ July 24-30_2017https://polarbearscience.com/wp-content/uploads/2018/07/churchill-pb-reports_week-3_-july-23-29_july-2018-e1533015160552.jpgChurchill PB reports_week 3_ July 23-29_July 20182018-07-31T05:51:11+00:00monthlyhttps://polarbearscience.com/2018/07/23/churchill-area-polar-bears-off-the-ice-as-of-third-week-in-july-say-problem-bear-reports/https://polarbearscience.com/wp-content/uploads/2018/07/2015-july-13_19-week-2-e1532402512472.jpg2015 July 13_19 week 2https://polarbearscience.com/wp-content/uploads/2018/07/2016-july-18_24_week-2-e1532402427809.jpg2016 July 18_24_week 2https://polarbearscience.com/wp-content/uploads/2018/07/churchill-pb-reports_week-2_-july-17-23_july-2017.jpgChurchill PB reports_week 2_ July 17-23_July 2017https://polarbearscience.com/wp-content/uploads/2018/07/hudson-bay-weekly-concentration-2018-july-16.gifHudson Bay weekly concentration 2018 July 16https://polarbearscience.com/wp-content/uploads/2018/07/churchill-pb-reports_week-1_-july-9-15_july-2018-e1532401512844.jpgChurchill PB reports_week 1_ July 9-15_July 2018https://polarbearscience.com/wp-content/uploads/2018/07/churchill-pb-reports_week-2_-july-16-22_july-2018-e1532401528965.jpgChurchill PB reports_week 2_ July 16-22_July 20182018-07-24T03:30:18+00:00monthlyhttps://polarbearscience.com/2018/07/14/sea-ice-is-critical-habitat-for-polar-bears-from-late-fall-through-late-spring-only/https://polarbearscience.com/wp-content/uploads/2018/07/polarbears-arcticnatlwildliferefuge-suzannemiller-usfws_labeled_sm.jpgpolarbears-arcticnatlwildliferefuge-suzannemiller-usfws_labeled_smhttps://polarbearscience.com/wp-content/uploads/2018/07/st-matthew-island-composite_from-wikipedia-maps.jpgSt. Matthew Island composite_from wikipedia mapshttps://polarbearscience.com/wp-content/uploads/2018/07/wrangel-island-chukchi_sea_map-location-wikipedia-sm.pngWrangel Island Chukchi_Sea_map location wikipedia smhttps://polarbearscience.com/wp-content/uploads/2018/07/sea-ice-extent-2016-may-average_nsidc.pngSea ice extent 2016 May average_NSIDChttps://polarbearscience.com/wp-content/uploads/2018/07/walsh-et-al-2017-fig-7-ice-mins-back-to-1854_marked.jpgWalsh et al. 2017 Fig 7 ice mins back to 1854_markedhttps://polarbearscience.com/wp-content/uploads/2018/07/franz-josef-land-fat-bear_shutterstock_1014134242_web-size.jpgFranz Josef Land fat bear_shutterstock_1014134242_web size2018-07-14T20:35:52+00:00monthlyhttps://polarbearscience.com/2018/07/10/just-look-at-what-the-global-heat-wave-is-doing-to-polar-bear-sea-ice-habitat/https://polarbearscience.com/wp-content/uploads/2018/07/ice_extent_map-15-june-2018-nsidc.pngice_extent_map 15 June 2018 NSIDChttps://polarbearscience.com/wp-content/uploads/2018/07/ice_extent_map-8-july-2013-nsidc.pngice_extent_map 8 July 2013 NSIDChttps://polarbearscience.com/wp-content/uploads/2018/07/sea-ice-extent-2007-and-2018-nsidc-interactive-graph-at-july-8-2018.jpgSea ice extent 2007 and 2018 NSIDC interactive graph at July 8 2018https://polarbearscience.com/wp-content/uploads/2018/07/ice_extent_map-8-july-2017-nsidc.pngice_extent_map 8 July 2017 NSIDChttps://polarbearscience.com/wp-content/uploads/2018/07/ice_extent_map-8-july-2016-nsidc.pngice_extent_map 8 July 2016 NSIDChttps://polarbearscience.com/wp-content/uploads/2018/07/ice_extent_map-8-july-2014-nsidc.pngice_extent_map 8 July 2014 NSIDChttps://polarbearscience.com/wp-content/uploads/2018/07/ice_extent_map-8-july-2012-nsidc.pngice_extent_map 8 July 2012 NSIDChttps://polarbearscience.com/wp-content/uploads/2018/07/ice_extent_map-8-july-2011-nsidc.pngice_extent_map 8 July 2011 NSIDChttps://polarbearscience.com/wp-content/uploads/2018/07/ice_extent_map-8-july-2010-nsidc.pngice_extent_map 8 July 2010 NSIDChttps://polarbearscience.com/wp-content/uploads/2018/07/ice_extent_map-8-july-2018-nsidc.pngice_extent_map 8 July 2018 NSIDC2018-07-10T16:27:06+00:00monthlyhttps://polarbearscience.com/2018/03/25/at-the-winter-maximum-still-about-the-same-polar-bear-habitat-this-year-as-2006/https://polarbearscience.com/wp-content/uploads/2018/03/pb_male-on-ice_regehr-usfws_march-2010_labeled.jpgPB_male on ice_Regehr USFWS_March 2010_labeledPolar bear on winter sea ice around the yearly maximum, Beaufort Sea 2010 (March 21).https://polarbearscience.com/wp-content/uploads/2018/03/masie_all_zoom_4km-2006-march-12-cropped_at-winter-max-jpeg1.jpgmasie_all_zoom_4km 2006 March 12 cropped_at Winter max jpeghttps://polarbearscience.com/wp-content/uploads/2018/03/masie_all_zoom_4km-2018-march-17.pngmasie_all_zoom_4km 2018 March 17https://polarbearscience.com/wp-content/uploads/2018/03/durner-et-al-2009-fig-12c-cnrm-cm3-ice-extent-winter-models.jpgDurner et al. 2009 FIg 12c CNRM CM3 ice extent winter modelshttps://polarbearscience.com/wp-content/uploads/2018/03/arctic-masie_all_zoom_4km-2018-march-17-cf-durner-pb-habitat-at-winter-max-jpeg-e1521908590589.jpgArctic masie_all_zoom_4km 2018 March 17 cf Durner pb habitat at Winter max jpeghttps://polarbearscience.com/wp-content/uploads/2018/03/durner-et-al-2009-fig-12c-hadgem1-ice-extent-winter-models.jpgDurner et al. 2009 FIg 12c HADGEM1 ice extent winter modelshttps://polarbearscience.com/wp-content/uploads/2018/03/arctic-sea-ice-maximum-10-lowest-extents_nsidc-23-march-2018.jpgArctic sea ice Maximum 10 lowest extents_NSIDC 23 March 20182018-03-25T16:40:15+00:00monthlyhttps://polarbearscience.com/2018/03/05/my-financial-post-op-ed-polar-bears-keep-thriving-even-as-global-warming-alarmists-keep-pretending-theyre-dying/2018-03-05T18:36:01+00:00monthlyhttps://polarbearscience.com/2018/03/04/archive-of-2007-usgs-reports-supporting-2008-esa-listing-for-the-polar-bear/https://polarbearscience.com/wp-content/uploads/2018/03/amstrup-w-triplet_prudhoe-bay-2005_usgs_sm.jpgAmstrup w triplet_Prudhoe Bay 2005_USGS_smhttps://polarbearscience.com/wp-content/uploads/2018/03/usgs-2007-polar-bear-listing-headline.jpgUSGS 2007 Polar Bear Listing headline2018-03-04T19:27:30+00:00monthlyhttps://polarbearscience.com/references/2018-03-04T16:57:58+00:00weekly0.6https://polarbearscience.com/2018/02/27/state-of-the-polar-bear-report-2017-shows-polar-bears-are-thriving/https://polarbearscience.com/wp-content/uploads/2018/02/state-of-polar-bear-report-cover_12-feb-2018-image-with-bottom.jpgState of Polar Bear Report cover_12 Feb 2018 image with bottom2018-02-27T14:16:45+00:00monthlyhttps://polarbearscience.com/2018/02/25/my-polar-bear-facts-myths-book-for-kids-is-being-translated-into-dutch-norwegian/https://polarbearscience.com/wp-content/uploads/2018/02/masie_all_zoom_4km-2018-feb-21.pngmasie_all_zoom_4km 2018 Feb 21https://polarbearscience.com/wp-content/uploads/2018/02/barents-sea-ice-extent-2018-feb-22_nis.pngBarents Sea ice extent 2018 Feb 22_NIShttps://polarbearscience.com/wp-content/uploads/2018/02/sea-ice-canada-2018-feb-23.gifSea ice Canada 2018 Feb 23https://polarbearscience.com/wp-content/uploads/2018/02/walking-to-ship-bear_shutterstock_550109851_cropped-web-size.jpgWalking to ship bear_shutterstock_550109851_Cropped web sizehttps://polarbearscience.com/wp-content/uploads/2018/02/mother-with-cubs-russia_shutterstock_71694292_web-size.jpgMother with cubs Russia_shutterstock_71694292_web sizehttps://polarbearscience.com/wp-content/uploads/2018/02/franz-josef-land-fat-bear_shutterstock_1014134242_web-size.jpgFranz Josef Land fat bear_shutterstock_1014134242_web sizehttps://polarbearscience.com/wp-content/uploads/2018/02/walking-bear_129029633_web-size.jpgWalking bear_129029633_web sizehttps://polarbearscience.com/wp-content/uploads/2018/02/walking-bear-shutterstock_329214941_web-size.jpgWalking bear shutterstock_329214941_web sizehttps://polarbearscience.com/wp-content/uploads/2018/02/lying-bear-shutterstock_244419640_cropped_web-size-e1520273851615.jpgLying bear shutterstock_244419640_Cropped_web size2018-02-23T18:42:53+00:00monthlyhttps://polarbearscience.com/2018/02/20/state-of-the-polar-bear-report-2017-to-be-released-feb-2017-at-press-lunch-toronto/https://polarbearscience.com/wp-content/uploads/2018/02/state-of-polar-bear-report-cover_12-feb-2018-image.jpgState of Polar Bear Report cover_12 Feb 2018 image2018-02-21T03:19:54+00:00monthlyhttps://polarbearscience.com/2017/09/19/breaking-2016-w-hudson-bay-polar-bear-survey-shows-the-population-is-still-stable/https://polarbearscience.com/wp-content/uploads/2017/09/crockford-2017-sea-ice-graphic-e1505870943498.jpgCrockford 2017 sea ice graphichttps://polarbearscience.com/wp-content/uploads/2017/09/western-hudson-bay-pb-2016-marked_gn-report_table-10.jpgWestern Hudson Bay PB 2016 MARKED_GN REPORT_Table 10https://polarbearscience.com/wp-content/uploads/2017/09/sea-ice-extent-sept-averages-1979-2016-nsidc.pngSea ice extent Sept averages 1979-2016 NSIDChttps://polarbearscience.com/wp-content/uploads/2017/09/western-hudson-bay-pb-2016-population-assessment_fig-11-map.jpgWestern Hudson Bay PB 2016 Population Assessment_fig 11 map2018-02-07T22:32:26+00:00monthlyhttps://polarbearscience.com/2014/07/22/low-genetic-diversity-will-not-make-polar-bears-more-vulnerable-to-extinction/https://polarbearscience.com/wp-content/uploads/2014/05/photo1007_polar-bear-image-from-alaska-science-center_usgs.jpgPhoto1007_Polar-Bear-image-from-Alaska-Science-Center_USGSPhoto credit USGS2018-02-06T23:00:23+00:00monthlyhttps://polarbearscience.com/2014/04/14/polar-bears-move-around-as-sea-ice-habitat-changes-this-is-what-resilience-looks-like/https://polarbearscience.com/wp-content/uploads/2014/04/amstrup-et-al-2005_fig-3-subset-of-bear-locations.jpgAmstrup et al 2005_Fig 3 subset of bear locationsFigure 3. This is Fig. 3 from Amstrup et al. (2005), showing the overlap of collared western North American polar bears – the Southern Beaufort, Chukchi Sea and Northern Beaufort subpopulations. When <a href="https://polarbearscience.com/2013/06/28/why-is-it-that-every-decade-eastern-beaufort-sea-ice-gets-really-thick/" target="_blank">heavy spring ice conditions</a> periodically develop in the Eastern Beaufort, many bears in that area probably move west into the Chukchi Sea, as ringed seals did during the winter of 1974/75 (Burns 1975).https://polarbearscience.com/wp-content/uploads/2014/04/mauritzen_etal_2002_barents-sea-pbs-shared-with-russia_fig-6.jpgMauritzen_etal_2002_Barents Sea PBs shared with Russia_Fig 6Figure 3. This is Fig. 6 from Maurizen et al. (2002:85), which shows as part of their results, the overlap in the ranges of radio-collared females from 1988-1999, between Svalbard (Norway) and Franz Josef Land in the North Kara Sea (Russia).https://polarbearscience.com/wp-content/uploads/2014/04/franz_josef_land-wikipedia.pngFranz_Josef_Land-wikipediaFigure 2. Close-up of Franz Josef Land, Russia, a short polar bear jog of 260 kilometers (160 mi) east of Svalbard. See cool <a href="http://www.blancpain.com/en/blogpost/expedition-logbook/polar-bears-franz-josef-land" target="_blank"><em>National Geographic</em> video clip</a> of polar bears there. https://polarbearscience.com/wp-content/uploads/2014/04/svalbard-pb-denning-kongsoya-and-hopen-and-east_april-13-2014.jpgSvalbard PB denning Kongsoya and Hopen and east_April 13 2014Figure 1. Top, Primary denning areas in the Svalbard Archipelago circled (Kong Karls Land and Hopen Island); Middle, “Barents Sea” popular bear subpopulation boundaries, courtesy PBSG; Bottom, Sea ice extent around Svalbard (circled) as of April 10, 2014, courtesy NSIDC.https://polarbearscience.com/wp-content/uploads/2014/04/polarbear_2008_usgs.jpgPolarBear_2008_USGS2018-01-15T19:17:32+00:00monthlyhttps://polarbearscience.com/2017/11/06/twenty-reasons-not-to-worry-about-polar-bears-the-2017-update/https://polarbearscience.com/wp-content/uploads/2017/11/fig-1-adjusted-population-numbers.jpgFig 1 adjusted population numbersFigure 1: Official estimates of polar bear numbers. Upper graph uses totals reported in PBSG status tables (to 2013), with min/max; lower graph uses the same figures, but adds back in the so-called ‘inaccurate’ estimates dropped between 2005 and 2013 (in 2014, the PBSG finally did the same). The 1960 figure is a ballpark estimate. See https://polarbearscience.com/2014/02/18/graphing-polar-bearpopulation-estimates-over-time/ and Crockford 2017. https://polarbearscience.com/wp-content/uploads/2017/11/cover-image_twenty-reasons_polarbearscience-e1515021014260.jpgCover image_Twenty Reasons_polarbearsciencehttps://polarbearscience.com/wp-content/uploads/2017/11/sea-ice-canada-2017-nov-6.gifSea ice Canada 2017 Nov 6[not included in the print version but added here for emphasis]https://polarbearscience.com/wp-content/uploads/2017/11/fig-7-nunavut.jpgFig 7 NunavutFigure 7: Polar bear research regimes in Canada Red: permits no longer issued; green: mark–recapture still permitted. https://polarbearscience.com/wp-content/uploads/2017/11/fig-4-south-beaufort-2012.jpgFig 4 South Beaufort 2012Figure 4: Sea ice extent at the 2012 late summer minimum. As at 16 September 2012. Source: NSIDC https://polarbearscience.com/wp-content/uploads/2017/11/fig-5-mentioned-populations.jpgFig 5 mentioned populationsFigure 5 [formerly 4]: Some polar bear assessment areas SB, Southern Beaufort Sea; BB, Baffin Bay; FB, Foxe Basin; WH, Western Hudson Bay; DS, Davis Strait. https://polarbearscience.com/wp-content/uploads/2017/11/172fig4-2-perovich-to-2016.png172fig4.2-perovich to 2016Figure 6. Arctic sea-ice levels 1978–2016 Source: NOAA’s ‘Arctic Report Card 2016’. Note the lack of error bars indicating the estimated accuracy of each value, which should be present on a scientific graph. https://polarbearscience.com/wp-content/uploads/2017/11/polar_bear_sow_two_cubs_feeding_with_gulls_kaktovik_usgs.jpgpolar_bear_sow_two_cubs_feeding_with_gulls_Kaktovik_USGShttps://polarbearscience.com/wp-content/uploads/2017/11/fig-3-sea-ice-prediction-vs-reality-2012.jpgFig 3 Sea ice prediction vs reality 2012 Figure 3. Predicted sea ice changes (based on 2004 data) at 2020, 2050, and 2080 that were used in 2007 to predict a 66% decline in global polar bear numbers vs. an example of the sea ice extent reality experienced since 2007 (shown is 2012). See Crockford 2017 for details. 2017-11-06T15:44:11+00:00monthlyhttps://polarbearscience.com/2017/10/04/breaking-pacific-walrus-is-not-threatened-with-extinction-says-us-fish-wildlife/https://polarbearscience.com/wp-content/uploads/2017/10/walrus-female-point-lay-alaska_ryan-kingsbery-usgs.jpgWalrus female Point Lay Alaska_Ryan Kingsbery USGS2017-10-05T19:47:10+00:00monthlyhttps://polarbearscience.com/2017/09/19/fabulous-polar-bear-science-book-for-kids-now-available-in-french-and-german/https://polarbearscience.com/wp-content/uploads/2017/09/crockford-ours-polaire_french-front-cover_web-size_10-sept-2017.jpgCrockford Ours Polaire_French front cover_web size_10 Sept 20172017-09-19T20:10:45+00:00monthlyhttps://polarbearscience.com/2017/08/29/polar-bear-facts-myths-translations-in-french-and-german-coming-soon/https://polarbearscience.com/wp-content/uploads/2017/08/fm-french-and-german-covers_10-sept-2017.jpgFM French and German covers_10 Sept 20172017-09-11T01:55:27+00:00monthlyhttps://polarbearscience.com/2017/08/08/churchill-polar-bear-reports-to-6-august-show-fewer-problems-than-last-two-years/https://polarbearscience.com/wp-content/uploads/2017/08/seal-river-lodge-location-2017.jpgSeal River Lodge location 2017https://polarbearscience.com/wp-content/uploads/2017/08/seal-river-polar-bear-report-for-2017-aug-5.jpgSeal River polar bear report for 2017 Aug 5https://polarbearscience.com/wp-content/uploads/2017/08/2015-july-20_26_week-3.jpg2015 July 20_26_week 3https://polarbearscience.com/wp-content/uploads/2017/08/2016-july-25_31_week-3.jpg2016 July 25_31_week 3https://polarbearscience.com/wp-content/uploads/2017/08/churchill-pb-reports_week-3_-july-24-30_2017.jpgChurchill PB reports_week 3_ July 24-30_2017https://polarbearscience.com/wp-content/uploads/2017/08/2016-aug-1-7_week-4.jpg2016 Aug 1-7_week 4https://polarbearscience.com/wp-content/uploads/2017/08/churchill-pb-reports_week-4_-july-31-aug-6_2017.jpgChurchill PB reports_week 4_ July 31- Aug 6_20172017-08-08T18:04:22+00:00monthlyhttps://polarbearscience.com/2012/11/13/how-long-have-polar-bears-lived-in-hudson-bay/https://polarbearscience.com/wp-content/uploads/2012/11/hudson-bay-1000-bp_cmc_ottawa-morlan.jpgHudson Bay 1000 BP_CMC_Ottawa MorlanFigure 7. Map showing known North American archaeological sites at about 1,000 BP (years before present), note very few around Hudson Bay. Courtesy Canadian Museum of Civilization, R. Morlan.https://polarbearscience.com/wp-content/uploads/2012/11/hudson-bay-5000-bp_cmc_ottawa-morlan.jpgHudson Bay 5000 BP_CMC_Ottawa MorlanFigure 6. Map showing known North American archaeological sites at about 5,000 BP (years before present), note none around Hudson Bay. Courtesy Canadian Museum of Civilization, R. Morlan.https://polarbearscience.com/wp-content/uploads/2012/11/dredge-1992-sea-level-churchill.jpgDredge 1992 sea level ChurchillFigure 5. After the ice had melted about 7,800 years ago, the shore of Hudson Bay was still depressed due to the weight of the Laurentide Ice Sheet. It has been slowly rebounding since then. As this graph shows, Churchill (on the west coast of Hudson Bay) would have been 165m under water 7,800 years ago and the Hudson Bay shoreline would have been well inland from its present position. By 2,000 years ago, sea level would have been about 25m above present levels and the shoreline perhaps several kilometers inland from its present position. This means that coastal sites once occupied by ancient people - and any maternity dens of polar bears - will be found inland from the present coast. Graph from Dregde (1992:11). https://polarbearscience.com/wp-content/uploads/2012/11/champlain-sea-to-post.jpgChamplain Sea to post Figure 3. Left, the Champlain Sea, an extension of the sea that flooded a large region either side of what is now the St. Lawrence River during the early Holocene. Bones of ringed seals and other Arctic seals, as well as beluga - all known prey of polar bears - have been found in ancient Champlain Sea deposits, but so far no polar bear bones have been found (Haringon 1988, 2003). Map of the Champlain Sea, left, from Wikipedia; modern configuration of the Great Lakes and St. Lawrence River, right, from "top 1000 destinations." https://polarbearscience.com/wp-content/uploads/2012/11/hudsone-bay-8000-bp-for-post.jpgHudsone Bay 8000 BP for postFigure 5. About 8,000 years ago, the Tyrrell Sea (left) dominated central Canada (modern configuration, on right, shown for comparison). An ice dam at the north end broke, transforming glacial Lake Agassiz into the Tyrrell Sea. Further changes in the Tyrrell Sea conformation established Hudson Bay. Map on left from the Canadian Museum of Civilization (R. Morlan), map on right from "top 1000 destinations."https://polarbearscience.com/wp-content/uploads/2012/11/hudsone-bay-11500-bp-for-post.jpgHudsone Bay 11500 BP for postFigure 2. By 11,500 years ago (after the so-called “Younger Dryas” cold period had ended), central Canada and many of the Canadian Arctic Islands were still covered by ice year round (left). Modern configuration, on right, shown for comparison. Map on left from the Canadian Museum of Civilization (R. Morlan), map on right from "top 1000 destinations." https://polarbearscience.com/wp-content/uploads/2012/11/condron-and-winsor-in-press-fig-1.jpgCondron and Winsor in press fig 1Figure 1. At 13,000 years ago, the central Arctic Basin and Baffin Bay - colored blue in this map - were free of sea ice in the summer as they are today, making them available polar bear habitat (land is black). However, the Laurentide Ice Sheet that remained over central Canada (area in white) excluded polar bears and ringed seals from the Canadian Arctic Archipelago and Hudson Bay, which today are home to more than half of the world’s polar bears. This map is fig.1 from Condron and Winsor (2012 in press).https://polarbearscience.com/wp-content/uploads/2012/11/hb-bears-plus-map_wikipedia_lg.jpgHB bears plus map_Wikipedia_lgModern polar bears on the sea ice of Hudson Bay (Wikipedia photo and map).2017-08-01T17:18:35+00:00monthlyhttps://polarbearscience.com/2017/07/31/churchill-polar-bear-report-24-30-july-rather-boring-compared-to-last-year/https://polarbearscience.com/wp-content/uploads/2017/07/churchill-pb-reports_week-3_-july-24-30_july-2017.jpgChurchill PB reports_week 3_ July 24-30_July 2017https://polarbearscience.com/wp-content/uploads/2017/07/hudson-bay-ice-weekly-stage-of-development-2017_july-24.gifHudson Bay ice weekly stage of development 2017_July 242017-07-31T17:25:09+00:00monthlyhttps://polarbearscience.com/2017/07/24/churchill-polar-bear-report-17-23-july-20-those-ashore-appear-to-be-in-great-shape/https://polarbearscience.com/wp-content/uploads/2017/07/churchillpolarbearsdotorg_july-14-2017-alex-de-vries-photo.jpgChurchillPolarBearsDotOrg_July 14 2017 Alex De Vries photohttps://polarbearscience.com/wp-content/uploads/2017/07/2016-july-18_24_week-2.jpg2016 July 18_24_week 2https://polarbearscience.com/wp-content/uploads/2017/07/churchill-pb-reports_week-2_-july-17-23_2017.jpgChurchill PB reports_week 2_ July 17-23_20172017-07-24T19:26:01+00:00monthlyhttps://polarbearscience.com/2017/07/18/western-hudson-bay-polar-bears-reportedly-still-on-ice-as-of-17-july-2017/https://polarbearscience.com/wp-content/uploads/2017/07/castro-de-la-guardia-et-al-2017-abstract-highlighted.jpgCastro de la Guardia et al 2017 Abstract highlightedhttps://polarbearscience.com/wp-content/uploads/2017/07/hudson-bay-south-daily-ice-concentration-2017_july-17-e1500351283883.pngHudson Bay south daily ice concentration 2017_July 17https://polarbearscience.com/wp-content/uploads/2017/07/hudson-bay-north-daily-ice-concentration-2017_july-17.gifHudson Bay North daily ice concentration 2017_July 17https://polarbearscience.com/wp-content/uploads/2017/07/hudson-bay-south-daily-ice-stage-of-development-2017_july-17-e1500351106188.pngHudson Bay south daily ice stage of development 2017_July 17https://polarbearscience.com/wp-content/uploads/2017/07/hudson-bay-north-daily-ice-stage-of-development-2017_july-17.gifHudson Bay North daily ice stage of development 2017_July 17https://polarbearscience.com/wp-content/uploads/2017/07/sea-ice-canada-2017-july-17.gifSea ice Canada 2017 July 17https://polarbearscience.com/wp-content/uploads/2017/07/churchill_polar_bear_2004-11-15-wikipedia.jpgChurchill_Polar_Bear_2004-11-15 Wikipedia2017-07-20T03:51:37+00:00monthlyhttps://polarbearscience.com/2017/06/12/stock-up-on-polar-bear-gifts-and-summer-reading-before-you-set-off-on-your-travels/https://polarbearscience.com/wp-content/uploads/2017/06/jeannette04-returning-from-a-bear-hunt-1880.jpgJeannette04 returning from a bear hunt 1880https://polarbearscience.com/wp-content/uploads/2017/06/pbs-have-big-feet-front-small.jpgPBs have Big Feet Front small2017-06-12T17:40:30+00:00monthlyhttps://polarbearscience.com/2015/05/15/beaufort-sea-polynyas-open-two-weeks-before-1975-open-water-is-good-news-for-polar-bears/https://polarbearscience.com/wp-content/uploads/2015/05/beaufort-sea-same-week-14-may-1968_2015-with-average_cis.pngBeaufort Sea same week 14 May 1968_2015 with average_CISFigure 5. Ice cover in the Beaufort Sea for the week of 14 May, 1968-2015, using Canadian Ice Service data. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/05/beaufort-sea-ice-thickness_2015-april-8-nrl.gifBeaufort sea ice thickness_2015 April 8 NRLFigure 4. Ice thickness map from the Naval Research Laboratory for 8 April 2015.https://polarbearscience.com/wp-content/uploads/2015/05/beaufort-sea-ice-thickness_2015-may-14-nrl.gifBeaufort sea ice thickness_2015 May 14 NRLFigure 3. Ice thickness map from the Naval Research Laboratory for 14 May 2015.https://polarbearscience.com/wp-content/uploads/2015/05/bathurst-and-w-beaufort-polynyas_1975-vs-2015_polarbearscience.jpgBathurst and W Beaufort polynyas_1975 vs 2015_PolarBearScienceFigure 2. West Barrow polynya at 17 May 1975 (Smith and Rigby 1981: Fig. 15c) and the polynya this year at 14 May (<a href="http://www7320.nrlssc.navy.mil/hycomARC/navo/beauforticennowcast.gif" target="_blank">Naval Research Laboratory</a>). Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/05/bathurst-polynya_1975-vs-2015_polarbearscience.jpgBathurst polynya_1975 vs 2015_PolarBearScienceFigure 1. Cape Bathurst polynya at 28 May 1975 (Smith and Rigby 1981: Fig. 14h) and the polynya this year at 14 May (Canadian Ice Service). Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/05/sb-polynyas-on-ice-thickness-map-14-may-2015_polarbearscience.jpgSB polynyas on ice thickness map 14 May 2015_PolarBearScience2017-05-20T16:22:58+00:00monthlyhttps://polarbearscience.com/2014/10/15/churchill-problem-bears-and-early-breakup-dates-in-whb-the-1983-2004-anomalies/https://polarbearscience.com/wp-content/uploads/2014/10/towns-et-al-2009-fig-2_polarbearscience.jpgTowns et al 2009 Fig 2_PolarBearScienceFigure 7. From Towns et al. (2009:1533), number of problem bears in a core area of Churchill from 1970 to 2004. Data from Kearney 1989 is excluded as “incomplete” https://polarbearscience.com/wp-content/uploads/2014/10/stirling-and-parkinson-2006-fig-4b.jpgStirling and Parkinson 2006 fig 4bFigure 7. This is Fig. 4b from Stirling and Parkinson 2006, showing the number of problem bears handled vs. breakup dates, a simple correlation scatter plot. http://www.regentsprep.org/regents/math/algebra/AD4/scatter.htm However, note that the breakup dates given don’t match those provided in the breakup dates figure from the same paper (Fig. 2 in the paper, Fig. 4 in this essay). The latest breakup date for this period according to their breakup dates graph should be about July 11 (Day 193), but the latest date on the figure above is July 24; similarly, the earliest breakup date on the breakup date graph (for 2003) is about Day 145 (May 25) but the earliest point on the graph above is positioned about June 3.¹Am I missing something here? Even if the ticks on the x-axis are incorrectly labeled, the point for 2003 should stand out as the earliest breakup date (~May 25) with the most problem bears (>150) – instead, the highest dot on the graph (>150) is located at about June 15. https://polarbearscience.com/wp-content/uploads/2014/10/kearney-1989-table-1-marked.jpgKearney 1989 Table 1 markedFigure 4. From Kearney 1989 (his Table 1), the number of reported occurrences of polar bears and number of bears handled in the Churchill area, 1969 to 1986. 1983 (marked) had the highest numbers of problem bears handled for this period. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2014/10/stirling-and-parkinson-2006-fig-4-e1413254519354.jpgStirling and Parkinson 2006 fig 4Figure 3. Graph from Stirling and Parkinson (2006:267, Fig. 4a) showing the number of problem bears handled by Conservation Officers in Churchill, Manitoba. Note the graph starts at 1984, although the study period for body condition (see Fig. 2) began in 1980, and ends at 2003, although the study period for body conditions (Fig. 2) ends in 2004. https://polarbearscience.com/wp-content/uploads/2014/10/churchill-manitoba_google-maps-2.jpgChurchill Manitoba_Google Maps 2Figure 2. Location of Churchill, Manitoba. Google Maps.https://polarbearscience.com/wp-content/uploads/2014/10/polar-bear-transported-to-polar-prison_w-huff-post-2011.jpgPolar bear-TRANSPORTED-TO-POLAR-PRISON_w Huff Post 2011Figure 1. A bear is transported to Churchill’s polar bear holding facility, from a 2011 Huffington Post article <a href="http://www.huffingtonpost.co.uk/2011/12/19/polar-bear-prison-churchill-polar-bear-jail-canada_n_1157689.html" target="_blank">“Polar Bear Prison.”</a>2017-05-09T20:15:53+00:00monthlyhttps://polarbearscience.com/2012/12/30/bearded-and-ringed-seals-join-the-polar-bear-as-threatened-by-a-computer-modeled-future/https://polarbearscience.com/wp-content/uploads/2012/12/bearded-and-ringed-seal-composite-noaa-photos.jpgBearded and ringed seal composite NOAA photosNOAA photos of bearded seal (top) and ringed seal (bottom)https://polarbearscience.com/wp-content/uploads/2012/12/kelly-et-al-2010-ringed-seal-distribution-fixed.jpgKelly et al 2010 ringed seal distribution fixedFig. 2. Map of global ringed seal distribution, from Kelly et al. 2010:61. Note that these authors include the Bering Sea in the "Chukchi Sea" population. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2012/12/can-geo_polar_bears_map.jpgCan Geo_polar_bears_mapFig. 1. Map of the Arctic showing polar bear subpopulations and sea ice. Reproduced from <em>Canadian Geographic</em>, December issue, "The truth about polar bears," by Zac Unger. Click to enlarge2017-04-03T18:55:24+00:00monthlyhttps://polarbearscience.com/2017/03/26/exposing-the-failed-polar-bear-scare-to-a-an-enthusiastic-and-influential-audience/https://polarbearscience.com/wp-content/uploads/2017/03/crockford-2017_slide-12-screencap.jpgCrockford 2017_Slide 12 screencap2017-03-26T19:10:18+00:00monthlyhttps://polarbearscience.com/2017/03/20/prehistoric-polar-bear-find-has-elongated-body-type-inuit-know-as-a-weasel-bear/https://polarbearscience.com/wp-content/uploads/2017/03/inuvialuit-nanuq-polar-bear-traditional-knowledge-2015_map-33-pg-130.jpgInuvialuit Nanuq Polar Bear Traditional Knowledge 2015_Map 33 pg 130https://polarbearscience.com/wp-content/uploads/2017/03/weasel-bear-headline-with-skull-graphic-18-march-20171.jpgWeasel bear headline with skull graphic 18 March 2017https://polarbearscience.com/wp-content/uploads/2017/03/weasel-pb-skull-alaska_daily-mail-headline-march-18-2017.jpgWeasel PB skull Alaska_Daily Mail headline March 18 20172017-03-20T16:24:43+00:00monthlyhttps://polarbearscience.com/2015/05/31/global-polar-bear-population-size-is-about-26000-20000-32000-despite-pbsg-waffling/https://polarbearscience.com/wp-content/uploads/2015/05/crockford-unofficial-polar-bear-numbers-to-2015-sept-1-final1.jpgCrockford unofficial polar bear numbers to 2015 Sept 1 FINALhttps://polarbearscience.com/wp-content/uploads/2015/05/crockford-official-polar-bear-numbers-to-2015-sept-1-final.jpgCrockford OFFICIAL polar bear numbers to 2015 Sept 1 FINALhttps://polarbearscience.com/wp-content/uploads/2015/05/crockford-unofficial-polar-bear-numbers-to-2015-sept-1-final.jpgCrockford unofficial polar bear numbers to 2015 Sept 1 FINALhttps://polarbearscience.com/wp-content/uploads/2015/05/polar-bears-usfws_cover-polarbearnews2013_2014.jpgPolar bears USFWS_cover PolarBearNews2013_2014https://polarbearscience.com/wp-content/uploads/2015/05/crockford_polarbearscience-1981-2013_fig3.jpgCrockford_PolarBearScience 1981-2013_Fig3https://polarbearscience.com/wp-content/uploads/2015/05/pb-map-all-populations-pbsg-original-plus-okhotsk.jpgPB map-all-populations PBSG original plus Okhotskhttps://polarbearscience.com/wp-content/uploads/2015/05/cambridge-bay_we-re-ok_from-joe-prins.jpgCambridge Bay_we re OK_from Joe Prinshttps://polarbearscience.com/wp-content/uploads/2015/05/snow-leopard-uncia_uncia_wikipedia.jpgSnow leopard Uncia_uncia_wikipediahttps://polarbearscience.com/wp-content/uploads/2015/05/white-rhinoceros_wikipedia.jpgWhite rhinoceros_wikipedia2017-02-24T06:22:19+00:00monthlyhttps://polarbearscience.com/2017/02/20/polar-bear-habitat-update-masie-charts-show-more-ice-in-2017-than-2006/https://polarbearscience.com/wp-content/uploads/2017/02/masie_all_r00_v01_2006050_4km_cropped_14_point_3mkm2.pngmasie_all_r00_v01_2006050_4km_cropped_14_point_3mkm2https://polarbearscience.com/wp-content/uploads/2017/02/masie_all_r00_v01_2017050_4km_cropped_14_point_7mkm22.pngmasie_all_r00_v01_2017050_4km_cropped_14_point_7mkm2https://polarbearscience.com/wp-content/uploads/2017/02/sea-ice-at-19-feb-2017_vs-2006_nsidc-interactive.jpgsea-ice-at-19-feb-2017_vs-2006_nsidc-interactive2017-02-20T22:32:41+00:00monthlyhttps://polarbearscience.com/2017/02/06/listen-to-the-evidence-polar-bears-are-thriving-in-current-sea-ice-habitat/https://polarbearscience.com/wp-content/uploads/2017/02/sea-ice-extent-canada-2017-feb-6_cis.gifsea-ice-extent-canada-2017-feb-6_cishttps://polarbearscience.com/wp-content/uploads/2017/02/masie_all_r00_v01_2017036_4km.pngmasie_all_r00_v01_2017036_4kmhttps://polarbearscience.com/wp-content/uploads/2017/02/2017-pbi-save-polar-bears-and-sea-ice.jpg2017-pbi-save-polar-bears-and-sea-icehttps://polarbearscience.com/wp-content/uploads/2017/02/2017-peoples-climate-march-in-april-for-polar-bears-pbi-plea.jpg2017-peoples-climate-march-in-april-for-polar-bears-pbi-plea2017-02-14T16:21:48+00:00monthlyhttps://polarbearscience.com/2017/01/22/polar-bear-habitat-update-as-much-sea-ice-in-2017-as-2006-at-18-january/https://polarbearscience.com/wp-content/uploads/2017/01/masie_all_zoom_4km-2017-jan-21.pngmasie_all_zoom_4km-2017-jan-21https://polarbearscience.com/wp-content/uploads/2017/01/sea-ice-extent-canada-2017-jan-22_cis.gifsea-ice-extent-canada-2017-jan-22_cishttps://polarbearscience.com/wp-content/uploads/2017/01/sea-ice-extent-canada-2017-jan-18_cis.gifsea-ice-extent-canada-2017-jan-18_cishttps://polarbearscience.com/wp-content/uploads/2017/01/canadian-northern-waters_regional_same-week-15-jan-1971-2017.pngcanadian-northern-waters_regional_same-week-15-jan-1971-2017https://polarbearscience.com/wp-content/uploads/2017/01/masie_all_r00_v01_2006018_4km-closeup-with-label.jpgmasie_all_r00_v01_2006018_4km-closeup-with-labelhttps://polarbearscience.com/wp-content/uploads/2017/01/masie_all_zoom_4km-2017-jan-18.pngmasie_all_zoom_4km-2017-jan-182017-01-22T16:55:30+00:00monthlyhttps://polarbearscience.com/2016/12/14/coming-soon-the-polar-bear-science-books-youve-been-requesting/https://polarbearscience.com/wp-content/uploads/2016/12/os-and-fm-cover-drafts-14-dec-2016.jpgos-and-fm-cover-drafts-14-dec-20162016-12-15T05:06:48+00:00monthlyhttps://polarbearscience.com/2016/11/06/eaten-the-movie-what-are-the-odds/https://polarbearscience.com/wp-content/uploads/2016/11/jaws-1975-and-the_shallows_poster_aug-2016.jpgjaws-1975-and-the_shallows_poster_aug-20162016-11-05T23:47:27+00:00monthlyhttps://polarbearscience.com/2016/10/14/new-ecology-book-25-myths-that-are-destroying-the-environment/https://polarbearscience.com/wp-content/uploads/2016/10/botkin-2017-25-myths-cover.jpgbotkin-2017-25-myths-cover2016-10-14T16:01:52+00:00monthlyhttps://polarbearscience.com/2016/03/24/both-sides-now-new-paper-critiques-canadian-polar-bear-population-status/https://polarbearscience.com/wp-content/uploads/2016/03/york-et-al-2016-fig-1_numbers-2013.pngYork et al 2016 fig 1_numbers 20132016-10-03T14:48:57+00:00monthlyhttps://polarbearscience.com/2016/08/04/polar-bears-off-the-ice-in-w-hudson-bay-are-well-fed-and-in-great-shape-this-year/https://polarbearscience.com/wp-content/uploads/2016/08/sea-ice-extent-canada-2016-july-17_cis.gifSea ice extent Canada 2016 July 17_CIShttps://polarbearscience.com/wp-content/uploads/2016/08/hudson-bay-same-week-9-july-1971-2016.pngHudson Bay same week 9 July 1971-2016https://polarbearscience.com/wp-content/uploads/2016/08/seal-river-lodge-location.jpgSeal River Lodge locationhttps://polarbearscience.com/wp-content/uploads/2016/08/churchill_polar_bear_2004-11-15-wikipedia.jpgChurchill_Polar_Bear_2004-11-15 Wikipediahttps://polarbearscience.com/wp-content/uploads/2016/08/2015-july-20_26.jpg2015 July 20_26https://polarbearscience.com/wp-content/uploads/2016/08/2015-july-5_12.jpg2015 July 5_12https://polarbearscience.com/wp-content/uploads/2016/08/2016-july-25_31_week-3.jpg2016 July 25_31_week 3https://polarbearscience.com/wp-content/uploads/2016/08/2016-july-18_24_week-2.jpg2016 July 18_24_week 2https://polarbearscience.com/wp-content/uploads/2016/08/2016-july-11_17_bears-off-the-ice.jpg2016 July 11_17_bears off the ice2016-08-05T04:00:36+00:00monthlyhttps://polarbearscience.com/2014/11/10/no-proof-walrus-are-struggling-from-the-loss-of-sea-ice-as-new-earthjustice-lawsuit-claims/https://polarbearscience.com/wp-content/uploads/2014/11/walrus-puss_usgs_img_4763.jpgWalrus puss_USGS_IMG_47632016-08-02T18:27:20+00:00monthlyhttps://polarbearscience.com/2014/10/12/where-have-all-the-walrus-gone/2016-08-02T18:27:03+00:00monthlyhttps://polarbearscience.com/2014/10/02/mass-gatherings-of-walrus-follow-up-sea-ice-maps-for-1978-and-1972/https://polarbearscience.com/wp-content/uploads/2014/10/1972-august-sea-ice-atlas-uaf_polarbearscience.jpg1972 August Sea ice atlas UAF_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2014/10/fay-and-kelly-1980_pg-227-map_polarbearscience.jpgFay and Kelly 1980_pg 227 map_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2014/10/1972-september-sea-ice-atlas-uaf_polarbearscience1.jpg1972 September Sea ice atlas UAF_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2014/10/1972-september-sea-ice-atlas-uaf_polarbearscience.jpg1972 September Sea ice atlas UAF_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2014/10/1978-november-sea-ice-atlas-uaf_polarbearscience.jpg1978 November Sea ice atlas UAF_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2014/10/1978-october-sea-ice-atlas-uaf_polarbearscience.jpg1978 October Sea ice atlas UAF_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2014/10/walrus-1-chukchi-sea-june-2014-_usfws.jpgPacific WalrusChukchi Sea walrus, June 2014. US Fish and Wildlife Service.2016-08-02T18:26:42+00:00monthlyhttps://polarbearscience.com/2014/10/04/high-walrus-numbers-may-explain-why-females-and-calves-are-hauling-out-in-droves/https://polarbearscience.com/wp-content/uploads/2014/10/walrus-2013-point-lay-nat-post-noaa.jpgPacific WalrusPoint Lay 2013 NOAA photohttps://polarbearscience.com/wp-content/uploads/2014/10/walrus-haulouts_noaa-status-report-2011-polarbearscience.jpgWalrus haulouts_NOAA status report 2011 PolarBearScienceFigure 1. Walrus haulouts by season, from the 2011 status report (Garlich-Miller et al. 2011).https://polarbearscience.com/wp-content/uploads/2014/10/walruses-at-point-lay-sept-27-2014-noaa-cmda0007_sm.jpgWalruses at Point Lay Sept 27 2014 NOAA CMDA0007_sm2016-08-02T18:25:17+00:00monthlyhttps://polarbearscience.com/2014/10/07/mass-haulouts-of-female-pacific-walrus-as-a-sign-of-population-health/https://polarbearscience.com/wp-content/uploads/2014/10/walruses-on-svalbard_thomas-nilsen_barents-observer_oct-6-2014.jpgWalruses on Svalbard_Thomas Nilsen_Barents Observer_Oct 6 2014Figure 1. Walrus females and calves hauled out on a beach in Svalbard, photo accompanying an <a href="http://www.rcinet.ca/eye-on-the-arctic/2014/10/06/norway-rapid-growth-in-svalbard-walrus-population/" target="_blank">October 6, 2014 news report in “Eye on the Arctic”</a> of the rapidly increasing Atlantic walrus population there. (Photo: Thomas Nilsen/Barents Observer). 2016-08-02T18:24:16+00:00monthlyhttps://polarbearscience.com/2014/10/01/mass-haulouts-of-pacific-walrus-and-stampede-deaths-are-not-new-not-due-to-low-ice-cover/https://polarbearscience.com/wp-content/uploads/2014/10/fay-et-al-1997-table-3-marked.jpgFay et al 1997 Table 3 markedhttps://polarbearscience.com/wp-content/uploads/2014/10/walrus-haulouts-ak_fay-et-al-1997-fig-1-map.jpgWalrus haulouts AK_Fay et al 1997 fig 1 maphttps://polarbearscience.com/wp-content/uploads/2014/10/fay-and-kelly-1980_pg-244-conclusions-1978-mortality-st-lawrence.jpgFay and Kelly 1980_pg 244 Conclusions 1978 mortality St Lawrencehttps://polarbearscience.com/wp-content/uploads/2014/10/fay-and-kelly-1980_pg-244-sm-wrangel-islands-aug-1972.jpgFay and Kelly 1980_pg 244 sm Wrangel islands Aug 1972https://polarbearscience.com/wp-content/uploads/2014/10/fay-and-kelly-1980_pg-241-sm-punuk-islands.jpgFay and Kelly 1980_pg 241 sm Punuk islandshttps://polarbearscience.com/wp-content/uploads/2014/10/fay-and-kelly-1980_pg-239-st-lawrence-sm.jpgFay and Kelly 1980_pg 239 St. Lawrence smhttps://polarbearscience.com/wp-content/uploads/2014/10/pt-lay-walrus-01-2-noaa-photo-sept-27-2014.jpgPt Lay Walrus 01-2 NOAA photo Sept 27 2014 https://polarbearscience.com/wp-content/uploads/2014/10/pt-lay-map-google-marked.jpgPt Lay map Google marked2016-08-02T18:22:54+00:00monthlyhttps://polarbearscience.com/2014/10/20/walrus-and-sea-ice-a-summary/2016-08-02T18:21:41+00:00monthlyhttps://polarbearscience.com/2014/10/23/walrus-mass-haulout-hype-refuted-the-video/https://polarbearscience.com/wp-content/uploads/2014/10/walrus-fuss_gwpf-video-crockford.jpgWalrus fuss_GWPF video Crockford2016-08-02T18:21:01+00:00monthlyhttps://polarbearscience.com/2015/03/30/us-biologists-used-same-flawed-models-for-listing-walrus-and-polar-bears-as-threatened/https://polarbearscience.com/wp-content/uploads/2015/03/atwood-et-al-2014_list-of-experts.jpgAtwood et al 2014_list of expertshttps://polarbearscience.com/wp-content/uploads/2015/03/walruses_usfws-photo_030515_march-2015.jpgWalruses_USFWS photo_030515_March 20152016-08-02T18:19:59+00:00monthlyhttps://polarbearscience.com/2015/08/06/pacific-walrus-sob-stories-begin-again/https://polarbearscience.com/wp-content/uploads/2015/08/walrus-2012-july-usgs.jpgWalrus 2012 July USGS2016-08-02T18:19:16+00:00monthlyhttps://polarbearscience.com/2015/08/28/pacific-walruses-hauled-out-at-point-lay-alaska-again-this-year/https://polarbearscience.com/wp-content/uploads/2015/08/walrus-haulouts_noaa-status-report-2011-polarbearscience.jpgWalrus haulouts_NOAA status report 2011 PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2015/08/walrus-at-pt-lay-2015-vs-2014-lg.jpgWalrus at Pt Lay 2015 vs 2014 lghttps://polarbearscience.com/wp-content/uploads/2015/08/walrus-pt-lay-adn-story-aug-27-screencap.jpgWalrus Pt Lay ADN story Aug 27 screencaphttps://polarbearscience.com/wp-content/uploads/2015/08/walrus-at-pt-lay-2015-vs-2014-long-sm.jpgWalrus at Pt Lay 2015 vs 2014 long sm2016-08-02T18:18:15+00:00monthlyhttps://polarbearscience.com/2015/09/13/pacific-walrus-herd-hauled-out-in-alaska-during-august-was-as-large-as-last-years/https://polarbearscience.com/wp-content/uploads/2015/09/walrus-haul-out-noaa-sept-2-2015.jpgwalrus haul out NOAA Sept 2 2015https://polarbearscience.com/wp-content/uploads/2015/09/walruses_usfws-photo_030515_march-2015.jpgWalruses_USFWS photo_030515_March 20152016-08-02T18:17:03+00:00monthlyhttps://polarbearscience.com/2016/07/27/why-is-polar-bear-conservation-such-a-contentious-issue/https://polarbearscience.com/wp-content/uploads/2016/07/uphere-magazine_july-2016-cover-cropped.jpgUpHere Magazine_July 2016 cover croppedhttps://polarbearscience.com/wp-content/uploads/2016/07/uphere-magazine_july-2016-cover.jpgUpHere Magazine_July 2016 cover2016-07-27T09:43:41+00:00monthlyhttps://polarbearscience.com/2016/07/23/sea-ice-habitat-canada-update-for-23-july-2016-vs-2014-the-start-of-bear-problems/https://polarbearscience.com/wp-content/uploads/2016/07/kashechewan_map_wikipedia.jpgKashechewan_map_wikipediahttps://polarbearscience.com/wp-content/uploads/2016/07/sea-ice-extent-canada-2016-june-23-cis.gifSea ice extent Canada 2016 June 23 CIShttps://polarbearscience.com/wp-content/uploads/2016/07/sea-ice-extent-canada-2014-june-23-2014-cis.gifSea ice extent Canada 2014 June 23 2014 CIShttps://polarbearscience.com/wp-content/uploads/2016/07/sea-ice-extent-canada-2014-july-23-cis.gifSea ice extent Canada 2014 July 23 CIShttps://polarbearscience.com/wp-content/uploads/2016/07/sea-ice-extent-canada-2016-july-23_cis.gifSea ice extent Canada 2016 July 23_CIS2016-07-23T18:05:49+00:00monthlyhttps://polarbearscience.com/2016/07/06/sharks-off-cape-cod-vs-my-polar-bear-attack-thriller-an-unnerving-parallel/https://polarbearscience.com/wp-content/uploads/2016/07/smashwords_logo.pngSmashwords_logohttps://polarbearscience.com/wp-content/uploads/2016/07/barnesnoble-icon.jpgbarnesnoble iconhttps://polarbearscience.com/wp-content/uploads/2016/07/kobo-logo.pngkobo-logohttps://polarbearscience.com/wp-content/uploads/2016/07/itunes-icon.pngitunes-iconhttps://polarbearscience.com/wp-content/uploads/2016/07/amazon-icon1.jpgamazon-iconhttps://polarbearscience.com/wp-content/uploads/2016/07/cape-cod-grey-seals-video-capture-2011.jpgCape cod grey seals video capture 2011https://polarbearscience.com/wp-content/uploads/2016/07/cape-cod-shark-detections-2015_capecodtimes2016.jpgCape Cod shark detections 2015_CapeCodTimes2016https://polarbearscience.com/wp-content/uploads/2016/07/sharkattacks-seal-cape-cod-2012-video-capture.jpgSharkAttacks seal cape cod 2012 video capture2016-07-06T22:20:12+00:00monthlyhttps://polarbearscience.com/2013/02/21/where-were-the-appeals-to-feed-starving-polar-bears-in-1974/2016-06-15T16:34:55+00:00monthlyhttps://polarbearscience.com/2016/06/05/wwf-and-the-international-bear-conference/https://polarbearscience.com/wp-content/uploads/2016/06/2016-bear-conference-wwf-pb-video-screencap.jpg2016 Bear conference WWF pb video screencaphttps://polarbearscience.com/wp-content/uploads/2016/06/apm_the-science-of-bears_june-7-2016-radio-screencap_at-5-june-marked.jpgAPM_The Science of Bears_June 7 2016 radio screencap_at 5 June markedhttps://polarbearscience.com/wp-content/uploads/2016/06/2016-bear-conference-ak-wwf-host-and-main-sponsor.jpg2016 Bear conference AK WWF host and main sponsor2016-06-08T15:03:13+00:00monthlyhttps://polarbearscience.com/2015/06/21/polar-bear-news-1st-fat-bear-ashore-in-whb-trouble-in-s-greenland-and-more-hybrid-hype/https://polarbearscience.com/wp-content/uploads/2015/06/greenland-s_nanortalik_pb-location-w-sea-ice-20-june_polarbearscience.jpgGreenland S_Nanortalik_pb location w sea ice 20 June_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2015/06/greenland-s_nanortalik_pb-location-w-sea-ice_polarbearscience.jpgGreenland S_Nanortalik_pb location w sea ice_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2015/06/greenland-south_polar-bear-nanortalik-08_henrik-hansen_june_18_2015.jpgGreenland South_polar-bear-nanortalik-08_henrik-hansen_June_18_2015https://polarbearscience.com/wp-content/uploads/2015/06/cfax-interview-17-june-2015.jpgCFAX interview 17 June 20152016-05-18T14:26:21+00:00monthlyhttps://polarbearscience.com/2013/07/15/global-population-of-polar-bears-has-increased-by-2650-5700-since-2001/https://polarbearscience.com/wp-content/uploads/2013/07/chukchi-male-1240-lbs-labeled-durner-2008.jpgChukchi male 1240 lbs labeled Durner 2008https://polarbearscience.com/wp-content/uploads/2013/07/global-pb-numbers-2001-vs-2013.jpgGlobal PB numbers 2001 vs 2013Polar bear subpopulations as defined by the PBSG: Top, in the 2001 report; Bottom, 2009 report. Map courtesy PBSG, with a few labels added and the subpopulations identified where “accounting” changes or adjustments to estimates took place.SB, Southern Beaufort; NB, Northern Beaufort; VM, Viscount Melville; MC, M’Clintock Channel; LS, Lancaster Sound; GB, Gulf of Boothia; NW, Norwegian Bay; KB, Kane Basin; WH, Western Hudson Bay. Click to enlarge.2016-05-15T16:31:21+00:00monthlyhttps://polarbearscience.com/2016/05/03/rcmp-shot-fearless-polar-bear-that-came-ashore-on-fogo-island-newfoundland/2016-05-04T15:56:36+00:00monthlyhttps://polarbearscience.com/2016/03/28/2016-record-low-maximum-will-make-headlines-but-unlikely-to-affect-polar-bears/https://polarbearscience.com/wp-content/uploads/2016/03/polar_bear_male_regehr-photo_march-21-2010_labeled.jpgPolar_Bear_male_Regehr photo_March 21 2010_labeledhttps://polarbearscience.com/wp-content/uploads/2016/03/masie_all_zoom_4km-2016-march-24.pngmasie_all_zoom_4km 2016 March 24https://polarbearscience.com/wp-content/uploads/2016/03/sea-ice-extent-2016-march-24-nsidc_max-14_52mkm2-sm.pngSea ice extent 2016 March 24 NSIDC_max 14_52mkm2 sm2016-03-28T23:14:17+00:00monthlyhttps://polarbearscience.com/2015/07/29/hudson-bay-davis-strait-and-foxe-basin-sea-ice-highest-since-1992/https://polarbearscience.com/wp-content/uploads/2015/07/hudson-bay-breakup-july-30-2015_cis.gifHudson Bay breakup July 30 2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/07/nw-hb-coverage-week-of-11-june_1971-2015.jpgNW HB coverage week of 11 June_1971-2015https://polarbearscience.com/wp-content/uploads/2015/07/foxe-basin-same-week-30-july-1968-2015-cis.pngFoxe Basin same week 30 July 1968-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/07/davis-strait-same-week-july-30-1971-2015-cis.pngDavis Strait same week July 30 1971-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/07/hudson-bay-same-week-30-july-1971-2015.pngHudson Bay same week 30 July 1971-2015https://polarbearscience.com/wp-content/uploads/2015/07/eastern-arctic-departure-from-normal_2015-july-27_cis.gifEastern Arctic departure from normal_2015 July 27_CIShttps://polarbearscience.com/wp-content/uploads/2015/07/masie_all_r10_v01_2009209_4km.pngmasie_all_r10_v01_2009209_4kmhttps://polarbearscience.com/wp-content/uploads/2015/07/stirling-et-al-1999-fig-5_collared-bears-ashore.jpgStirling et al 1999 fig 5_collared bears ashoreThis is Figure 5 from Stirling et al. 1999.https://polarbearscience.com/wp-content/uploads/2015/07/derocher-tweet-2015-july-20-tracking-update.jpgDerocher tweet 2015 July 20 tracking updatehttps://polarbearscience.com/wp-content/uploads/2015/07/hudson-bay-breakup-2015_28-july-onshore-locations.jpgHudson Bay breakup 2015_28 July onshore locations2016-03-22T04:11:33+00:00monthlyhttps://polarbearscience.com/2015/09/18/barents-sea-polar-bears-in-excellent-condition-say-norwegian-biologists/https://polarbearscience.com/wp-content/uploads/2015/09/barents-sea-bear-2015-august-cobbing_npi.jpgBarents Sea bear 2015 August Cobbing_NPIhttps://polarbearscience.com/wp-content/uploads/2015/09/barents-sea-with-franz-josef-land.jpgBarents Sea with Franz Josef Landhttps://polarbearscience.com/wp-content/uploads/2015/09/svalbard-polar-bear-jon-aars_norsk-polarinstitutt.jpgSvalbard polar bear Jon Aars_Norsk PolarinstituttJon Aars with a polar bear on the Barents Sea ice.https://polarbearscience.com/wp-content/uploads/2015/09/barents-sea-pb-count_cobbing-photo-2015_aars-and-andersson_sm.jpg) Ei binne er immobilisert og får påført et satellitthalsbånd. En 7 måneder gammel unge ser påPhoto above: Magnus Andersson and Jon Aars from the Norwegian Polar Institute are waiting for the anesthetic to work on polar bears. The bear is immobilized and will incur a satellite collars. A 7 month old young watching. (Photo: Nick Cobbing) https://polarbearscience.com/wp-content/uploads/2015/09/masie_all_r11_v01_2007261_4km.pngmasie_all_r11_v01_2007261_4kmhttps://polarbearscience.com/wp-content/uploads/2015/09/masie_all_r11_v01_2012261_4km.pngmasie_all_r11_v01_2012261_4kmhttps://polarbearscience.com/wp-content/uploads/2015/09/masie_all_r11_v01_2015254_4km.pngmasie_all_r11_v01_2015254_4kmhttps://polarbearscience.com/wp-content/uploads/2015/09/arctic-basin-at-17-sept-2015_vs-10-april.jpgArctic Basin at 17 Sept 2015_vs 10 April2016-03-16T15:41:15+00:00monthlyhttps://polarbearscience.com/2014/10/27/beaufort-sea-polar-bear-subpopulation-boundary-has-been-changed/https://polarbearscience.com/wp-content/uploads/2014/10/ec_polarbearstatusmapcanada_oct-26-2014_direct.jpgEC_PolarBearStatusMapCanada_Oct 26 2014_directFigure 4. The Davis Strait (DS) subpopulation region runs from just below the Arctic Circle at the north end to at least 470N in the south. About half of DS lays at the same latitude as Western Hudson Bay (WH). Courtesy <a href="https://www.ec.gc.ca/nature/default.asp?lang=En&n=F77294A3-1#_fig03" target="_blank">Environment Canada.</a>https://polarbearscience.com/wp-content/uploads/2014/10/pbsg-status-table-oct-27-2014_polarbearscience.jpgPBSG status table Oct 27 2014_PolarBearScienceFigure 4. <span style="color:#3366ff;"><a style="color:#3366ff;" href="http://pbsg.npolar.no/en/status/status-table.html" target="_blank">PBSG 2013 Status Table</a></span> published in February 2014. This is a screencap taken the morning of October 27 2014.https://polarbearscience.com/wp-content/uploads/2014/10/ec_polarbearstatus_and-trends-lg_2010-2014-mapscanada_oct-26-2014.jpgEC_PolarBearStatus_and Trends LG_2010-2014 MapsCanada_Oct 26 2014Figure 3. "Series of Circumpolar Polar Bear Subpopulation and Status Trend Maps 2010, 2013 & 2014" Note the asterisk below the 2014 map, which is dated "June 2014" and is different in its status assessment from the one released in February 2013 by the PBSG. Original <a href="https://www.ec.gc.ca/nature/default.asp?lang=En&n=F77294A3-1#_fig04" target="_blank">here</a>. https://polarbearscience.com/wp-content/uploads/2014/10/nick-lunn_pbsg-profile_polarbearscience_oct-27-2014.jpgNick Lunn_PBSG profile_PolarBearScience_Oct 27 2014https://polarbearscience.com/wp-content/uploads/2014/10/ec-s_n-beaufort-boundary-changesept-8-2014-sm_polarbearscience.jpgEC S_N Beaufort boundary changeSept 8 2014 sm_PolarBearScienceFigure 1. Boundary change between Southern Beaufort (SB) and Northern Beaufort (NB) polar bear subpopulations on a map apparently published at the Environment Canada website <a href="https://www.ec.gc.ca/nature/default.asp?lang=En&n=F77294A3-1#_fig02" target="_blank">8 September 2014</a>. https://polarbearscience.com/wp-content/uploads/2014/10/ec-s_n-beaufort-boundary-change-sept-8-2014_cropped-polarbearscience.jpgEC S_N Beaufort boundary change Sept 8 2014_cropped PolarBearScience2016-03-12T16:21:19+00:00monthlyhttps://polarbearscience.com/2016/02/21/february-polar-bear-focus-daily-posts-plus-special-deals-on-my-new-novel/https://polarbearscience.com/wp-content/uploads/2016/02/polar_bear_in-fall-terry-debruyne_usfws-nov-10-2010_w-label_sm.jpgPolar_Bear_in fall Terry Debruyne_USFWS Nov 10 2010_w label_smhttps://polarbearscience.com/wp-content/uploads/2016/02/polar_bear_in-fall_usfws-nov-10-2010_cropped.jpgPolar_Bear_in fall_USFWS Nov 10 2010_cropped2016-02-21T23:00:29+00:00monthlyhttps://polarbearscience.com/2013/05/25/buffet-time-for-polar-bears-springearly-summer-is-for-eating-baby-seals/https://polarbearscience.com/wp-content/uploads/2013/05/sea-ice-extent-2009-jun-30-nsidc.pngSea ice extent 2009 Jun 30 NSIDCFigure 5. Sea ice extent at June 30, 2009 (NSIDC), the year that polar bears in western Hudson Bay had ice for hunting well into August (as late as in 1992), see previous post <a href="https://polarbearscience.com/2013/03/21/polar-bears-of-w-hudson-bay-came-ashore-in-2009-as-late-as-in-1992/" target="_blank">here</a>. https://polarbearscience.com/wp-content/uploads/2013/05/sea-ice-extent-2012-jun-27-nsidc.pngSea ice extent 2012 Jun 27 NSIDCFigure 4. Sea ice extent at June 27, 2012 (NSIDC), showing the ice remaining in Hudson Bay and the Chukchi Sea (upper left).https://polarbearscience.com/wp-content/uploads/2013/05/sea-ice-extent-2013-may-24-nsidc-graph.pngSea ice extent 2013 May 24 NSIDC graphFigure 3. Arctic sea ice extent graph at May 24, 2013, against 2012 and the 1979-2000 average.https://polarbearscience.com/wp-content/uploads/2013/05/sea-ice-extent-2013-may-24-nsidc.pngSea ice extent 2013 May 24 NSIDCFigure 2. Sea ice extent at May 24, 2013 (NSIDC). Still far more ice than average in the Bering Sea (upper left) and less than average in the Barents Sea (lower right). See previous post <a href="https://polarbearscience.com/2013/05/07/not-much-has-changed-in-polar-bear-country-since-the-sea-ice-maximum/" target="_blank">here</a> for maps from May 15.https://polarbearscience.com/wp-content/uploads/2013/05/peeling-baby-seals_april-15-2013.jpgPeeling baby seals_April 15 2013Figure 1. The ice seal species consumed by polar bears, pictured at or close to weaning age when they may be 50% fat by weight. Ringed seals are consumed the most often, with bearded seals the second – other species are consumed if encountered but they are much less common and occur only in particular areas. The banana is a reminder that polar bears usually eat the fat of seals first, pealing the skin off the body and consuming the underlying fat. When seals are abundant, adult bears may not eat any more than the fat, leaving behind the carcasses – which are then available for younger bears and arctic foxes. 2016-02-20T04:55:09+00:00monthlyhttps://polarbearscience.com/2016/02/13/give-your-love-a-polar-bear-attack-thriller-for-valentines-day/https://polarbearscience.com/wp-content/uploads/2016/02/valentines-day-book-cover2_eaten1.jpgValentines Day book cover2_EATENhttps://polarbearscience.com/wp-content/uploads/2016/02/valentines-day-book-cover_eaten.jpgValentines Day book cover_EATEN2016-02-13T16:51:29+00:00monthlyhttps://polarbearscience.com/2016/01/07/davis-strait-polar-bear-habitat-well-above-average-for-the-first-week-of-winter/https://polarbearscience.com/wp-content/uploads/2016/01/sea-ice-extent-canada-2015-march-12-cis.gifSea ice extent Canada 2015 March 12 CIShttps://polarbearscience.com/wp-content/uploads/2016/01/east-coast-same-week-12-mar-1969-20151.pngEast Coast same week 12 Mar 1969-2015https://polarbearscience.com/wp-content/uploads/2016/01/davis-strait-southern-labrador-same-week-1-jan-1971-2016.pngDavis Strait Southern Labrador same week 1 Jan 1971-2016https://polarbearscience.com/wp-content/uploads/2016/01/davis-strait-northern-labrador-same-week-1-jan-1971-2016.pngDavis Strait Northern Labrador same week 1 Jan 1971-2016https://polarbearscience.com/wp-content/uploads/2016/01/davis-strait-same-week-1-jan-1971-2016.pngDavis Strait same week 1 Jan 1971-2016https://polarbearscience.com/wp-content/uploads/2016/01/davis-stait-in-ec-context.jpgDavis Stait in EC contexthttps://polarbearscience.com/wp-content/uploads/2016/01/canadian-arctic-jan-7-2016_cis.gifCanadian Arctic Jan 7 2016_CIS2016-01-08T05:51:07+00:00monthlyhttps://polarbearscience.com/2015/10/07/sea-ice-is-not-a-stable-habitat-for-polar-bears-summarized-today-in-the-arctic-journal/https://polarbearscience.com/wp-content/uploads/2015/10/unstable-thinking-about-polar-bear-habitat_oct-7-2015-title-page.jpgUnstable thinking about polar bear habitat_Oct 7 2015 title pagehttps://polarbearscience.com/wp-content/uploads/2015/10/polar_bear_male-on-sea-ice_alaska-katovik-regehr-photo_april-29-2005_sm-labeled.jpgPolar_Bear_male on sea ice_Alaska Katovik Regehr photo_April 29, 2005_sm labeled2015-12-20T17:57:30+00:00monthlyhttps://polarbearscience.com/2015/11/26/perfect-time-to-buy-eaten-30-discount/2015-11-27T04:02:56+00:00monthlyhttps://polarbearscience.com/2015/11/17/eaten-a-novel-now-available/2015-11-17T11:40:32+00:00monthlyhttps://polarbearscience.com/2015/11/14/eaten-my-first-novel-coming-soon/https://polarbearscience.com/wp-content/uploads/2015/11/eaten_a-new-novel_final_lg.jpgEATEN_A new novel_final_lghttps://polarbearscience.com/wp-content/uploads/2015/11/eaten_a-new-novel_final_sm.jpgEATEN_A new novel_final_smhttps://polarbearscience.com/wp-content/uploads/2015/11/eaten_a-new-novel-2_sm.jpgEATEN_A new novel 2_smhttps://polarbearscience.com/wp-content/uploads/2015/11/eaten_a-new-novel_2.jpgEATEN_A new novel_22015-11-14T14:06:59+00:00monthlyhttps://polarbearscience.com/2015/11/12/polar-bear-habitat-update-arctic-sea-ice-today-covers-same-area-as-it-did-on-june-30/2015-11-13T02:49:29+00:00monthlyhttps://polarbearscience.com/2015/11/09/specialists-mum-on-low-chukchi-sea-polar-bear-habitat-this-summer-and-fall/https://polarbearscience.com/wp-content/uploads/2015/11/sea-ice-ecoregions-vs-ec-subpopoulations_polarbearscience_march-22-2015.jpgSea ice ecoregions vs EC subpopoulations_PolarBearScience_March 22 2015https://polarbearscience.com/wp-content/uploads/2015/11/masie_all_zoom_4km-2015_nov-8.pngmasie_all_zoom_4km 2015_Nov 8https://polarbearscience.com/wp-content/uploads/2015/11/r02_chukchi_sea_ts_4km.pngr02_Chukchi_Sea_ts_4kmhttps://polarbearscience.com/wp-content/uploads/2015/11/r01_beaufort_sea_ts_4km.pngr01_Beaufort_Sea_ts_4kmhttps://polarbearscience.com/wp-content/uploads/2015/11/chukchi-vs-beaufort-ice-at-29-oct-2015_polarbearscience.jpgChukchi vs Beaufort ice at 29 Oct 2015_polarbearscience2015-11-10T14:59:23+00:00monthlyhttps://polarbearscience.com/2015/11/05/who-tagged-the-beaufort-sea-polar-bear-with-the-tight-collar/2015-11-05T17:27:27+00:00monthlyhttps://polarbearscience.com/2015/10/28/sickening-effect-of-satellite-radio-collars-polar-bear-researchers-dont-want-you-to-see/https://polarbearscience.com/wp-content/uploads/2015/10/photo-by-jake-steven-arnatsiaq-2012.jpgPhoto by Jake Steven Arnatsiaq 2012Photo by Jake Steven Arnatsiaq.https://polarbearscience.com/wp-content/uploads/2015/10/polar-bear-radio-collar_cbc-oct-28-2015.jpgpolar-bear-radio-collar_CBC Oct 28 20152015-11-05T16:47:20+00:00monthlyhttps://polarbearscience.com/2015/11/05/hudson-bay-freeze-up-moving-faster-than-recent-years-whb-polar-bear-habitat-imminent/https://polarbearscience.com/wp-content/uploads/2015/11/sea-ice-extent-canada_2013-nov-4_cis.gifSea ice extent Canada_2013 Nov 4_CIShttps://polarbearscience.com/wp-content/uploads/2015/11/masie_all_zoom_4km.pngmasie_all_zoom_4kmhttps://polarbearscience.com/wp-content/uploads/2015/11/hudson-bay-north-stage-of-development_nov-4-2015.gifHudson Bay North stage of development_Nov 4 2015https://polarbearscience.com/wp-content/uploads/2015/11/beaufort-sea-same-week-5-nov-1968_2015_cis-a.pngBeaufort Sea same week 5 Nov 1968_2015_CIS ahttps://polarbearscience.com/wp-content/uploads/2015/11/foxe-basin-same-week-5-nov-1968_2015_cis-b.pngFoxe Basin same week 5 Nov 1968_2015_CIS bhttps://polarbearscience.com/wp-content/uploads/2015/11/davis-strait-same-week-5-nov-1971-2015-a.pngDavis Strait same week 5 Nov 1971-2015 ahttps://polarbearscience.com/wp-content/uploads/2015/11/hudson-bay-same-week-nov-5-oct-1971-2015-b.pngHudson Bay same week Nov 5 Oct 1971-2015 bhttps://polarbearscience.com/wp-content/uploads/2015/11/sea-ice-extent-canada-cis_nov-12-2012.gifSea ice extent Canada CIS_Nov 12 2012https://polarbearscience.com/wp-content/uploads/2015/11/sea-ice-extent-canada_2013-nov-8_cis.gifSea ice extent Canada_2013 Nov 8_CIShttps://polarbearscience.com/wp-content/uploads/2015/11/sea-ice-extent-canada-2014-nov-5-cis.gifSea ice extent Canada 2014 Nov 5 CIS2015-11-05T16:13:13+00:00monthlyhttps://polarbearscience.com/2015/11/04/discovery-news-spreads-old-misinformation-about-w-hudson-bay-polar-bears/2015-11-04T17:43:13+00:00monthlyhttps://polarbearscience.com/2015/11/04/tracking-polar-bears-in-the-beaufort-sea-all-three-bears-on-the-ice-during-october-2015/https://polarbearscience.com/wp-content/uploads/2015/11/beaufort-tracking-usgs-bear-movements-october-2014-lg.jpgBeaufort tracking USGS bear-movements-October-2014 lgMovements of 12 satellite-tagged polar bears for the month of October, 2014. Polar bears were tagged in 2014 on the spring-time sea ice of the southern Beaufort Sea. Ice coverage for 31 October, 2014. Click to enlarge. It looks to me like the 12th bear is a light pink icon that's now "hiding" under one of the others onshore.https://polarbearscience.com/wp-content/uploads/2015/11/beaufort-tracking-usgs-bear-movements-october-2015-lg.jpgBeaufort tracking USGS bear-movements-October 2015 lgOriginal caption: "Movements of 3 satellite-tagged polar bears for the month of October, 2015. Polar bears were tagged in 2014 and 2015 on the spring-time sea ice of the southern Beaufort Sea. All 3 of these bears have satellite collar transmitters. Polar bear satellite telemetry data are shown with AMSR2 remotely-sensed ice coverage for 31 October, 2015." Click to enlarge.2015-11-04T13:45:35+00:00monthlyhttps://polarbearscience.com/2015/10/29/2015-may-be-the-earliest-in-many-years-that-w-hudson-bay-polar-bears-head-for-the-sea-ice/https://polarbearscience.com/wp-content/uploads/2015/10/masie_all_zoom_4km-2015-oct-28.pngmasie_all_zoom_4km 2015 Oct 28https://polarbearscience.com/wp-content/uploads/2015/10/beaufort-sea-ice-thickness_2015-oct-28-nrl.gifBeaufort sea ice thickness_2015 Oct 28 NRLhttps://polarbearscience.com/wp-content/uploads/2015/10/beaufort-sea-ice-concentration_2015-oct-28-nrl.gifBeaufort sea ice concentration_2015 Oct 28 NRLhttps://polarbearscience.com/wp-content/uploads/2015/10/beaufort-sea-same-week-29-oct-1968_2015_cis.pngBeaufort Sea same week 29 Oct 1968_2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/10/davis-strait-same-week-29-oct-1971-2015.pngDavis Strait same week 29 Oct 1971-2015https://polarbearscience.com/wp-content/uploads/2015/10/foxe-basin-same-week-29-oct-1968_2015_cis.pngFoxe Basin same week 29 Oct 1968_2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/10/hudson-bay-same-week-29-oct-1971-2015.pngHudson Bay same week 29 Oct 1971-2015https://polarbearscience.com/wp-content/uploads/2015/10/sea-ice-extent-canada-2014-oct-29-cis.gifSea ice extent Canada 2014 Oct 29 CIShttps://polarbearscience.com/wp-content/uploads/2015/10/sea-ice-extent-canada-oct-31-2013.gifSea ice extent Canada Oct 31 2013https://polarbearscience.com/wp-content/uploads/2015/10/canadian-arctic-oct-29-2015_cis.gifCanadian Arctic Oct 29 2015_CIS2015-10-29T16:16:06+00:00monthlyhttps://polarbearscience.com/2015/10/25/beaufort-sea-polar-bear-habitat-highest-since-2008-at-this-date/https://polarbearscience.com/wp-content/uploads/2015/10/masie_all_r00_v01_2006297_4km.pngmasie_all_r00_v01_2006297_4kmhttps://polarbearscience.com/wp-content/uploads/2015/10/masie_all_r00_v01_2007297_4km.pngmasie_all_r00_v01_2007297_4kmhttps://polarbearscience.com/wp-content/uploads/2015/10/masie_all_r00_v01_2008298_4km.pngmasie_all_r00_v01_2008298_4kmhttps://polarbearscience.com/wp-content/uploads/2015/10/masie_all_r00_v01_2009297_4km.pngmasie_all_r00_v01_2009297_4kmhttps://polarbearscience.com/wp-content/uploads/2015/10/masie_all_r00_v01_2010297_4km.pngmasie_all_r00_v01_2010297_4kmhttps://polarbearscience.com/wp-content/uploads/2015/10/canadian-arctic-oct-25-2015_cis.gifCanadian Arctic Oct 25 2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/10/masie_all_zoom_4km.pngmasie_all_zoom_4kmhttps://polarbearscience.com/wp-content/uploads/2015/10/r01_beaufort_sea_ts_4km1.pngr01_Beaufort_Sea_ts_4km2015-10-25T16:42:47+00:00monthlyhttps://polarbearscience.com/2015/10/23/churchill-problem-polar-bear-report-for-13-18-october-2015/https://polarbearscience.com/wp-content/uploads/2015/10/2015-oct-13_18_at-oct-19_lg.jpg2015 Oct 13_18_at Oct 19_lg2015-10-23T15:13:00+00:00monthlyhttps://polarbearscience.com/2015/10/21/winter-returns-to-the-arctic-freeze-up-2015-at-october-20-expands-polar-bear-habitat/https://polarbearscience.com/wp-content/uploads/2015/10/r02_chukchi_sea_ts_4km.pngr02_Chukchi_Sea_ts_4kmhttps://polarbearscience.com/wp-content/uploads/2015/10/r09_canadian_archipelago_ts_4km.pngr09_Canadian_Archipelago_ts_4kmhttps://polarbearscience.com/wp-content/uploads/2015/10/r01_beaufort_sea_ts_4km.pngr01_Beaufort_Sea_ts_4kmhttps://polarbearscience.com/wp-content/uploads/2015/10/sea-ice-2015-at-20-oct-vs-2007_2012_nsidc-interact.jpgSea ice 2015 at 20 Oct vs 2007_2012_NSIDC interacthttps://polarbearscience.com/wp-content/uploads/2015/10/barents-sea-ice-extent-2015-oct-21_nis.pngBarents Sea ice extent 2015 Oct 21_NIShttps://polarbearscience.com/wp-content/uploads/2015/10/sea-ice-extent-canada-2014-oct-21-cis.gifSea ice extent Canada 2014 Oct 21 CIShttps://polarbearscience.com/wp-content/uploads/2015/10/canadian-arctic-oct-21-2015_cis.gifCanadian Arctic Oct 21 2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/10/masie_all_zoom_4km_2015-oct-20.pngmasie_all_zoom_4km_2015 Oct 202015-10-21T15:52:11+00:00monthlyhttps://polarbearscience.com/2015/10/16/bbc-perspective-on-arviat-polar-bears-those-not-included-in-the-last-mark-recapture-study/https://polarbearscience.com/wp-content/uploads/2015/10/churchill_polar_bear_2004-11-15-wikipedia.jpgChurchill_Polar_Bear_2004-11-15 Wikipediahttps://polarbearscience.com/wp-content/uploads/2015/10/lunn-et-al-2013-breakup-freeze-up-dates-marked.jpgLunn et al 2013 breakup freeze up dates markedhttps://polarbearscience.com/wp-content/uploads/2015/10/lunn-et-al-2013_pg-15_breakup-freeze-up-dates_1979_2012.jpgLunn et al 2013_pg 15_breakup freeze up dates_1979_2012https://polarbearscience.com/wp-content/uploads/2015/10/bbc-magazine-arviat-map_oct-16-2015.jpgBBC magazine Arviat map_Oct 16 20152015-10-16T16:33:50+00:00monthlyhttps://polarbearscience.com/2015/10/13/western-hudson-bay-polar-bear-numbers-are-stable-no-trend-in-ice-breakup-or-freeze-up/https://polarbearscience.com/wp-content/uploads/2015/10/iucn-pgsg-whb-population-status_10-oct-2015.jpgIUCN PGSG WHB population status_10 Oct 2015https://polarbearscience.com/wp-content/uploads/2015/10/lunn-et-al-2014-fig-1.jpgLunn et al 2014 fig 1Lunn et al. 2013, 2014. Map of study area.https://polarbearscience.com/wp-content/uploads/2015/10/triplets-in-wapusk-np-from-mccall-webpage-2013.jpgTriplets in Wapusk NP from McCall webpage 2013https://polarbearscience.com/wp-content/uploads/2015/10/guardian-pg-interactive-2013_03-graphs.jpgGuardian pg interactive 2013_03 graphs2015-10-13T09:15:08+00:00monthlyhttps://polarbearscience.com/2015/10/06/churchill-has-polar-bears-victoria-has-cougars/https://polarbearscience.com/wp-content/uploads/2015/10/victoria-cougar-location-oct-5-2015.jpgVictoria cougar location Oct 5 2015https://polarbearscience.com/wp-content/uploads/2015/10/cougar_victoria-downtown_oct-5-2015_01.jpgCougar_Victoria downtown_Oct 5 2015_012015-10-06T19:07:19+00:00monthlyhttps://polarbearscience.com/2015/10/03/tracking-polar-bears-3-out-of-4-s-beaufort-bears-on-the-ice-during-september-2015/https://polarbearscience.com/wp-content/uploads/2015/10/kaktovik-pb-males_posted-sept-30-2015_eliasson-facebook.jpgKaktovik pb males_posted Sept 30 2015_Eliasson facebookhttps://polarbearscience.com/wp-content/uploads/2015/10/kaktovik-pb-family_posted-oct-2-2015_eliasson-facebook.jpgKaktovik pb family_posted Oct 2 2015_Eliasson facebookhttps://polarbearscience.com/wp-content/uploads/2015/10/kaktovik-sightings-sept-29-2015-eliasson.jpgKaktovik sightings Sept 29 2015 Eliassonhttps://polarbearscience.com/wp-content/uploads/2015/10/beaufort-tracking-usgs-bear-movements-september-2015-lg.jpgBeaufort tracking USGS bear-movements-September 2015 lgFigure 1. Original caption: “Movements of 4 satellite-tagged polar bears for the month of September, 2015. Polar bears were tagged in 2014 and 2015 on the spring-time sea ice of the southern Beaufort Sea. All 4 of these bears have satellite collar transmitters. Polar bear satellite telemetry data are shown with AMSR2 remotely-sensed ice coverage for 30 September, 2015.” 2015-10-03T08:30:33+00:00monthlyhttps://polarbearscience.com/2015/10/01/beaufort-sea-swimming-polar-bears-far-from-land-but-not-very-far-from-sea-ice/https://polarbearscience.com/wp-content/uploads/2015/09/curious-swimming-pbs-beaufort-sea_16-sept-2015-sea-ice.jpgCurious swimming pbs Beaufort Sea_16 Sept 2015 sea icehttps://polarbearscience.com/wp-content/uploads/2015/09/beaufort-swimming-polar-bears_sept-30-2015_global-news.jpgBeaufort swimming polar bears_Sept 30 2015_Global news2015-10-01T06:44:09+00:00monthlyhttps://polarbearscience.com/2015/09/24/polar-bear-town-churchill-bear-stories-on-tv-without-gloom-and-doom-propaganda/https://polarbearscience.com/wp-content/uploads/2015/09/polar-bear-town-cast_snip.jpgPolar Bear Town cast_sniphttps://polarbearscience.com/wp-content/uploads/2015/09/polar-bear-town-premiere-sept-22-2015.jpgPolar Bear Town premiere Sept 22 20152015-10-01T02:34:12+00:00monthlyhttps://polarbearscience.com/2015/09/30/activist-explorer-blames-more-polar-bear-encounters-since-1985-on-reduced-sea-ice/https://polarbearscience.com/wp-content/uploads/2015/09/severnaya_zemlya_kara-sea_wikipedia.pngSevernaya_Zemlya_Kara Sea_wikipediahttps://polarbearscience.com/wp-content/uploads/2015/09/icelegacy_ng-video-sept-30-2015.jpgIceLegacy_NG video Sept 30 20152015-09-30T17:43:53+00:00monthlyhttps://polarbearscience.com/2015/09/25/churchill-problem-polar-bear-report-for-14-20-september-2015/https://polarbearscience.com/wp-content/uploads/2015/09/2015-sept-14_20_at-sept-21.jpg2015 Sept 14_20_at Sept 212015-09-25T14:53:16+00:00monthlyhttps://polarbearscience.com/2015/09/22/summer-refuge-for-polar-bears-in-arctic-basin-only-0-3-mkm2-below-its-possible-maximum/https://polarbearscience.com/wp-content/uploads/2015/09/healy-aug-24-2015-polar-bear-iii-tim-kenna.jpgHealy Aug 24 2015 Polar-Bear III Tim Kennahttps://polarbearscience.com/wp-content/uploads/2015/09/pb-resting_patrick-kelly-23-august-2009_uscoast-guard_sm.jpgPolar BearA polar bear rests on the ice Aug. 23, 2009, after following the Coast Guard Cutter Healy for nearly an hour.https://polarbearscience.com/wp-content/uploads/2015/09/pb-resting_patrick-kelly-23-august-2009_uscoast-guard_lg.jpgPolar BearA polar bear rests on the ice Aug. 23, 2009, after following the Coast Guard Cutter Healy for nearly an hour.2015-09-21T23:11:37+00:00monthlyhttps://polarbearscience.com/2015/09/18/churchill-problem-polar-bear-report-for-7-13-september-2015/https://polarbearscience.com/wp-content/uploads/2015/09/polar-bear-transported-to-polar-prison_w-huff-post-2011.jpgPolar bear-TRANSPORTED-TO-POLAR-PRISON_w Huff Post 2011https://polarbearscience.com/wp-content/uploads/2015/09/2015-sept-7-13_at-sept-14.jpg2015 Sept 7-13_at Sept 142015-09-18T15:02:19+00:00monthlyhttps://polarbearscience.com/2015/09/14/september-minimum-2015-looks-like-the-earliest-end-of-arctic-melt-season-since-2007/https://polarbearscience.com/wp-content/uploads/2015/09/sea-ice-extent-sept-mins-ten-lowest_official-nsidc-sept-15-2015.jpgSea ice extent Sept mins ten lowest_official NSIDC Sept 15 2015https://polarbearscience.com/wp-content/uploads/2015/09/sea-ice-extent-sept-mins-2015-back-to-2006-official-nsidc-sept-15.jpgSea ice extent Sept mins 2015 back to 2006 official NSIDC Sept 15https://polarbearscience.com/wp-content/uploads/2015/09/sea-ice-min-2015-at-12-sept-vs-2011_2012_nsidc-interact.jpgSea ice min 2015 at 12 Sept vs 2011_2012_NSIDC interacthttps://polarbearscience.com/wp-content/uploads/2015/09/sea-ice-extent-sept-mins-2015-back-to-2007-chart-nsidc.jpgSea ice extent Sept mins 2015 back to 2007 chart NSIDChttps://polarbearscience.com/wp-content/uploads/2015/09/sea-ice-extent-2015-sept-12-nsidc.pngSea ice extent 2015 Sept 12 NSIDChttps://polarbearscience.com/wp-content/uploads/2015/09/masie_all_zoom_v01_2015255_4km.pngmasie_all_zoom_v01_2015255_4kmhttps://polarbearscience.com/wp-content/uploads/2015/09/masie_all_zoom_v01_2015252_4km.pngmasie_all_zoom_v01_2015252_4km2015-09-15T18:02:39+00:00monthlyhttps://polarbearscience.com/2015/09/09/last-years-dead-svalbard-polar-bear-used-for-this-years-propaganda/https://polarbearscience.com/wp-content/uploads/2015/09/svalbard-ice-extent-2015-july-3_nis.pngSvalbard ice extent 2015 July 3_NIShttps://polarbearscience.com/wp-content/uploads/2015/09/stirlings-other-pb-that-died-of-climate-change_sept-8-2015.jpgStirlings other pb that died of climate change_Sept 8 20152015-09-09T17:09:29+00:00monthlyhttps://polarbearscience.com/2015/09/06/polar-bears-will-not-be-considered-for-severe-cites-trade-restrictions/https://polarbearscience.com/wp-content/uploads/2015/09/cites-2015-meeting-logo.jpgCITES 2015 meeting logo2015-09-07T19:02:10+00:00monthlyhttps://polarbearscience.com/2015/09/06/polar-bears-are-not-hungriest-in-summer-when-scientists-are-busy-in-the-arctic/https://polarbearscience.com/wp-content/uploads/2015/09/beseiged-by-bears-russia-bbc-video-sept-1-2015.jpgBeseiged by bears Russia BBC video Sept 1 2015https://polarbearscience.com/wp-content/uploads/2015/09/polar-bear-feeding-budget_polarbearscience_6sept2015.jpgPolar bear feeding budget_PolarBearScience_6Sept20152015-09-07T00:10:35+00:00monthlyhttps://polarbearscience.com/2015/09/02/tracking-polar-bears-two-s-beaufort-bears-spent-august-2015-on-ice-that-doesnt-exist/https://polarbearscience.com/wp-content/uploads/2015/09/masie_all_zoom_v01_2015242_4km.pngmasie_all_zoom_v01_2015242_4kmhttps://polarbearscience.com/wp-content/uploads/2015/09/beaufort-tracking-usgs-bear-movements-august-2015-lg.jpgBeaufort tracking USGS bear-movements-August 2015 lgFigure 1. Original caption: “Movements of 7 satellite-tagged polar bears for the month of August, 2015. Polar bears were tagged in 2014 and 2015 on the spring-time sea ice of the southern Beaufort Sea. All 7 of these bears have satellite collar transmitters. Polar bear satellite telemetry data are shown with AMSR2 remotely-sensed ice coverage for 30 August, 2015.” Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/09/thin-ice-lisa-robbins-sept-15-usgs_04.jpgThin ice Lisa Robbins Sept 15 USGS_042015-09-02T04:15:22+00:00monthlyhttps://polarbearscience.com/2015/08/26/polar-bear-habitat-update-more-ice-than-2012-when-all-the-bears-didnt-die/https://polarbearscience.com/wp-content/uploads/2015/08/pb-on-thin-ice_patrick-kelly-21-august-2009_uscoast-guard_lg.jpgOn thin iceA polar bear slides across thin Actic Ocean ice Aug. 21, 2009. P. Kelly, US Coast Guard.https://polarbearscience.com/wp-content/uploads/2015/08/svalbard-ice-extent-2015-august-26_nis.pngSvalbard ice extent 2015 August 26_NIShttps://polarbearscience.com/wp-content/uploads/2015/08/barents-sea-ice-extent-2015-aug-26_nis.pngBarents Sea ice extent 2015 Aug 26_NIShttps://polarbearscience.com/wp-content/uploads/2015/08/canadian-eastern-arctic-same-week-aug-27-1971-2015-cis.pngCanadian Eastern Arctic same week Aug 27 1971-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/08/canadian-waters-north-same-week-27-aug-1968_2015_cis.pngCanadian waters north same week 27 Aug 1968_2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/08/beaufort-sea-west-ak-same-week-27-aug-1968_2015_cis.pngBeaufort Sea West AK same week 27 Aug 1968_2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/08/beaufort-sea-same-week-27-aug-1968_2015_cis.pngBeaufort Sea same week 27 Aug 1968_2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/08/baffin-bay-same-week-aug-27-1968_2015-with-average_cis.pngBaffin Bay same week Aug 27 1968_2015 with average_CIShttps://polarbearscience.com/wp-content/uploads/2015/08/foxe-basin-same-week-27-aug-1968-2015-cis1.pngFoxe Basin same week 27 Aug 1968-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/08/foxe-basin-same-week-27-aug-1968-2015-cis.pngFoxe Basin same week 27 Aug 1968-2015 CIS2015-08-27T04:45:01+00:00monthlyhttps://polarbearscience.com/2015/08/25/arctic-basin-polar-bears-researchers-spot-fat-pregnant-female-from-icebreaker/https://polarbearscience.com/wp-content/uploads/2015/08/healy-aug-24-2015-polar-bear-v-tim-kenna.jpgHealy Aug 24 2015 Polar-Bear V Tim Kennahttps://polarbearscience.com/wp-content/uploads/2015/08/healy-position-8_24_2015.jpgHealy position-8_24_2015https://polarbearscience.com/wp-content/uploads/2015/08/healy-aug-24-2015-polar-bear-vi-tim-kenna.jpgHealy Aug 24 2015 Polar-Bear VI Tim Kenna2015-08-26T03:21:32+00:00monthlyhttps://polarbearscience.com/2015/08/25/in-1999-climate-change-apparently-threatened-western-hudson-bay-polar-bears/https://polarbearscience.com/wp-content/uploads/2015/08/hudson-bay-same-week-20-aug-1971-20151.pngHudson Bay same week 20 Aug 1971-2015https://polarbearscience.com/wp-content/uploads/2015/08/foxe-basin-same-week-20-aug-1968-2015-cis.pngFoxe Basin same week 20 Aug 1968-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/08/davis-strait-same-week-aug-20-1971-2015-cis.pngDavis Strait same week Aug 20 1971-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/08/hudson-bay-breakup-aug-24-2015_cis.gifHudson Bay breakup Aug 24 2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/08/climate-change-threatens-polar-bears_cbc-1999.jpgClimate change threatens polar bears_CBC 1999https://polarbearscience.com/wp-content/uploads/2015/08/climate-change-threatens-polar-bears-2_cbc-1999.jpgClimate change threatens polar bears 2_CBC 1999https://polarbearscience.com/wp-content/uploads/2015/08/lunn-et-al-2013-whb-breakup-dates-to-2012-with-1999-marked.jpgLunn et al 2013 WHB breakup dates to 2012 with 1999 markedhttps://polarbearscience.com/wp-content/uploads/2015/08/hudson-bay-same-week-2-july-1971-2015.pngHudson Bay same week 2 July 1971-20152015-08-25T09:05:16+00:00monthlyhttps://polarbearscience.com/2015/08/20/summer-habitat-for-most-polar-bears-is-either-shoreline-or-sea-ice-in-the-arctic-basin/https://polarbearscience.com/wp-content/uploads/2015/08/sea-ice-extent-at-16-aug-2015-masie-vs-nsidc-passive-mw.jpgSea ice extent at 16 Aug 2015 MASIE vs NSIDC passive mwhttps://polarbearscience.com/wp-content/uploads/2015/08/hudson-bay-same-week-20-aug-1971-2015.pngHudson Bay same week 20 Aug 1971-2015https://polarbearscience.com/wp-content/uploads/2015/08/polar-bear-on-ice_sara-registry-webpage_gov-can.jpgPolar bear on ice_SARA registry webpage_gov Canhttps://polarbearscience.com/wp-content/uploads/2015/08/hb-polar_bears_2004-wapusk-nat-park-wikipedia.jpgHB Polar_Bears_2004 Wapusk Nat Park WikipediaThin Western Hudson Bay bears, Wakusp National Park, 2004.https://polarbearscience.com/wp-content/uploads/2015/08/spitsbergen-polar_bear_2003.jpgSpitsbergen Polar_Bear_2003Starving Spitsbergen bear, 2003.https://polarbearscience.com/wp-content/uploads/2015/08/starving-polar-bear-2007-ungava-bay-80104_polar_bear.jpgStarving polar bear 2007 Ungava Bay 80104_polar_bearStarving bear, Ungava Bay, 2007.https://polarbearscience.com/wp-content/uploads/2015/08/polarbear_parks-canada-wapusk-in-august.jpgPolarbear_Parks Canada Wapusk in AugustWestern Hudson Bay bear, Wakusp National Park, August 2011.https://polarbearscience.com/wp-content/uploads/2015/08/james-bay-female-and-cub_ontaro-govt.jpgJames Bay female and cub_Ontaro GovtFat James Bay female with cub.https://polarbearscience.com/wp-content/uploads/2015/08/foxe-basin-polar_bears_rowley_island_stapleton-2012-press-photo-labeled-sm.jpgFoxe Basin polar_bears_rowley_island_Stapleton 2012 press photo labeled smFoxe Basin bears onshore.https://polarbearscience.com/wp-content/uploads/2015/08/polarbears-arcticnatlwildliferefuge-suzannemiller-usfws_labeled_sm.jpgpolarbears-arcticnatlwildliferefuge-suzannemiller-usfws_labeled_smSouthern Beaufort mother with cubs relaxes for the summer onshore.2015-08-21T06:26:25+00:00monthlyhttps://polarbearscience.com/2015/08/16/barents-sea-polar-bear-research-in-the-good-old-days-196869-with-video/https://polarbearscience.com/wp-content/uploads/2015/08/dutch-expedition-route-map.jpgDutch expedition route map2015-08-16T19:51:46+00:00monthlyhttps://polarbearscience.com/2015/08/13/well-fed-polar-bears-onshore-at-height-of-summer-easily-deterred-by-noise-cbc-reports/https://polarbearscience.com/wp-content/uploads/2015/08/sea-ice-extent-canada-2014-nov-13-cis.gifSea ice extent Canada 2014 Nov 13 CIShttps://polarbearscience.com/wp-content/uploads/2015/08/map-foxebasin_lg.jpgmap-FoxeBasin_lghttps://polarbearscience.com/wp-content/uploads/2015/08/chesterfield-inlet-nunavut-map_cbc-13-aug-2015.pngchesterfield-inlet-nunavut-map_CBC 13 Aug 2015https://polarbearscience.com/wp-content/uploads/2015/08/polar-bear2-chesterfield-inlet_maggie-putulik-29-july-2015.jpgpolar-bear2-chesterfield-inlet_Maggie Putulik 29 July 2015Maggie Putulik photo #2, 29 July 2015 Chesterfield Inlet, Nunavut.https://polarbearscience.com/wp-content/uploads/2015/08/polar-bears-chesterfield-inlet_maggie-putulik-29-july-2015.jpgpolar-bears-chesterfield-inlet_Maggie Putulik 29 July 2015Maggie Putulik photo, 29 July 2015 Chesterfield Inlet, Nunavut.2015-08-13T16:09:31+00:00monthlyhttps://polarbearscience.com/2015/08/13/2nd-highest-ice-coverage-for-hudson-bay-since-1971-at-mid-august-only-1992-higher/https://polarbearscience.com/wp-content/uploads/2015/08/hudson-bay-breakup-aug-13-2015_cis.gifHudson Bay breakup Aug 13 2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/08/hudson-bay-regional-departure-from-normal_2015-aug-10_cis.gifHudson Bay regional departure from normal_2015 Aug 10_CIShttps://polarbearscience.com/wp-content/uploads/2015/08/beaufort-sea-same-week-13-aug-1968_2015_cis.pngBeaufort Sea same week 13 Aug 1968_2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/08/baffin-bay-same-week-aug-13-1968_2015-with-average_cis.pngBaffin Bay same week Aug 13 1968_2015 with average_CIShttps://polarbearscience.com/wp-content/uploads/2015/08/foxe-basin-same-week-13-aug-1968-2015-cis.pngFoxe Basin same week 13 Aug 1968-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/08/davis-strait-same-week-aug-13-1971-2015-cis.pngDavis Strait same week Aug 13 1971-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/08/hudson-bay-same-week-13-aug-1971-2015.pngHudson Bay same week 13 Aug 1971-20152015-08-13T06:04:52+00:00monthlyhttps://polarbearscience.com/2015/08/12/hudson-bay-ice-update-researchers-awfully-quiet-about-what-polar-bears-are-doing/https://polarbearscience.com/wp-content/uploads/2015/08/masie_all_r10_v01_2015222_4km.pngmasie_all_r10_v01_2015222_4kmhttps://polarbearscience.com/wp-content/uploads/2015/08/masie_all_r10_v01_2009222_4km.pngmasie_all_r10_v01_2009222_4kmhttps://polarbearscience.com/wp-content/uploads/2015/08/masie_all_r10_v01_2009232_4km.pngmasie_all_r10_v01_2009232_4kmhttps://polarbearscience.com/wp-content/uploads/2015/08/hudson-bay-breakup-aug-10-2015_cis.gifHudson Bay breakup Aug 10 2015_CIS2015-08-12T05:30:46+00:00monthlyhttps://polarbearscience.com/2015/08/09/summer-polar-bear-habitat-then-now-little-impact-from-2007-record-breaking-sea-ice-low/https://polarbearscience.com/wp-content/uploads/2015/08/masie_all_r10_v01_2015220_4km.pngmasie_all_r10_v01_2015220_4kmhttps://polarbearscience.com/wp-content/uploads/2015/08/masie_all_r10_v01_2007220_4km.pngmasie_all_r10_v01_2007220_4kmhttps://polarbearscience.com/wp-content/uploads/2015/08/masie_all_r08_v01_2015220_4km.pngmasie_all_r08_v01_2015220_4kmhttps://polarbearscience.com/wp-content/uploads/2015/08/masie_all_r08_v01_2007220_4km.pngmasie_all_r08_v01_2007220_4kmhttps://polarbearscience.com/wp-content/uploads/2015/08/barents-sea-ice-extent-2015-aug-7_nis.pngBarents Sea ice extent 2015 Aug 7_NIShttps://polarbearscience.com/wp-content/uploads/2015/08/svalbard-sea-ice-2007-august-7_nis.jpgSvalbard sea ice 2007 August 7_NIShttps://polarbearscience.com/wp-content/uploads/2015/08/masie_all_r01_v01_2015220_4km.pngmasie_all_r01_v01_2015220_4kmhttps://polarbearscience.com/wp-content/uploads/2015/08/masie_all_r01_v01_2007220_4km.pngmasie_all_r01_v01_2007220_4kmhttps://polarbearscience.com/wp-content/uploads/2015/08/masie_all_r02_v01_2015220_4km.pngmasie_all_r02_v01_2015220_4kmhttps://polarbearscience.com/wp-content/uploads/2015/08/masie_all_r02_v01_2007220_4km.pngmasie_all_r02_v01_2007220_4km2015-08-09T23:41:23+00:00monthlyhttps://polarbearscience.com/2015/08/05/long-underwater-stalk-by-polar-bear-shows-how-hard-it-is-to-catch-seals-in-summer/https://polarbearscience.com/wp-content/uploads/2015/08/underwater-stalk_04-seals-in-the-water.jpgUnderwater stalk_04 seals in the waterhttps://polarbearscience.com/wp-content/uploads/2015/08/underwater-stalk_03.jpgUnderwater stalk_03https://polarbearscience.com/wp-content/uploads/2015/08/underwater-stalk_02.jpgUnderwater stalk_02https://polarbearscience.com/wp-content/uploads/2015/08/underwater-stalk_01.jpgUnderwater stalk_012015-08-06T02:24:27+00:00monthlyhttps://polarbearscience.com/2015/06/12/polar-bear-behaviour-gets-the-animal-tragedy-porn-treatment-two-new-papers/https://polarbearscience.com/wp-content/uploads/2015/06/barents-sea-ice-and-white-beaked-dolphins-spring-2014_polarbearscience.jpgBarents Sea ice and white beaked dolphins spring 2014_PolarBearScienceFigure . Range of white-beaked dolphin compared to sea ice on the date Raudfjorden was ice-free on 11 March and when it became ice covered on 11 April, according to NSIDC MASIE charts. Trapped dolphins were about 6 weeks earlier than usual. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/aars-et-al-2015-fig-1-polar-bear-and-dolphin.jpgdoi:10.3402/polar.v34.26612https://polarbearscience.com/wp-content/uploads/2015/06/aars-et-al-2015-fig-2c-map.jpgdoi:10.3402/polar.v34.26612Figure 3. This is Fig. 3c from Aars et al. 2015. It shows sea ice conditions for April 2014 (when dolphin-feeding incident described took place, located at #1). #2 and #3 indicate regions where two bears were feeding on a dolphin carcass in July 2014. Bears were also seen feeding on dolphin carcasses at location #1 in July (see photo in Fig. 2 above) and in September. https://polarbearscience.com/wp-content/uploads/2015/06/aars-et-al-2015-fig-3-polar-bear-and-dolphin.jpgdoi:10.3402/polar.v34.26612Figure 2. Polar bear feeds on the carcass of a white-beaked dolphin trapped in sea ice near Svalbard on 2 July 2014. This is Fig. 3 from the Aars et al. 2015 paper, photo by co-author Samuel Blanc. https://polarbearscience.com/wp-content/uploads/2015/06/stirling-and-van-meurs_2015-in-press-fig-1.jpgStirling and van Meurs_2015 in press Fig 12015-08-05T18:03:55+00:00monthlyhttps://polarbearscience.com/2015/08/04/july-2015-all-13-collared-polar-bears-in-the-southern-beaufort-are-out-on-the-sea-ice/https://polarbearscience.com/wp-content/uploads/2015/08/polar-bear-s-beaufort_polarbearnews2010.jpgPolar bear S Beaufort_PolarBearNews2010https://polarbearscience.com/wp-content/uploads/2015/08/masie_all_zoom_v01_2015214_4km.pngmasie_all_zoom_v01_2015214_4km Figure 3. Arctic sea ice extent at 2 August 2015. 7.0 mkm2. NSIDC MASIE, original <a href="http://nsidc.org/data/masie/" target="_blank">here</a>. https://polarbearscience.com/wp-content/uploads/2015/08/r01_beaufort_sea_ts.pngr01_Beaufort_Sea_tsFigure 2. Beaufort Sea ice extent to August 2, 2011-2015. NSIDC MASIE. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/08/beaufort-tracking-usgs-bear-movements-july-2015-med.jpgBeaufort tracking USGS bear-movements-July 2015 medFigure 1. Original caption: “Movements of 13 satellite-tagged polar bears for the month of July, 2015. Polar bears were tagged in 2014 and 2015 on the spring-time sea ice of the southern Beaufort Sea. All 13 of these bears have satellite collar transmitters. Polar bear satellite telemetry data are shown with MODIS imagery from 23 July, 2015.” US Geological Survey. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/08/beaufort-sea_ice_usgs.jpgBeaufort sea_ice_USGS2015-08-04T03:22:33+00:00monthlyhttps://polarbearscience.com/2015/08/02/keeping-track-of-problem-bears-in-churchill/https://polarbearscience.com/wp-content/uploads/2015/08/lunn-et-al-2013-breakup-freeze-up-dates-marked.jpgLunn et al 2013 breakup freeze up dates markedhttps://polarbearscience.com/wp-content/uploads/2015/08/2015-july-20_26.jpg2015 July 20_26https://polarbearscience.com/wp-content/uploads/2015/08/2015-july-13_19.jpg2015 July 13_19https://polarbearscience.com/wp-content/uploads/2015/08/2015-july-5_12.jpg2015 July 5_12https://polarbearscience.com/wp-content/uploads/2015/08/2014-oct-27_nov-3.jpg2014 Oct 27_Nov 32015-08-02T16:05:40+00:00monthlyhttps://polarbearscience.com/2015/07/25/researcher-says-most-s-hudson-bay-polar-bears-still-on-the-ice-may-have-to-swim-home/https://polarbearscience.com/wp-content/uploads/2015/07/cream-ale-main.jpgcream-ale-mainhttps://polarbearscience.com/wp-content/uploads/2015/07/hudson-bay-breakup-july-25-2015_cis.gifHudson Bay breakup July 25 2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/07/hudson-bay-breakup-july-20-2015_cis1.gifHudson Bay breakup July 20 2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/07/cape-henrietta-maria-on_sh-bears-ashore.jpgCape Henrietta Maria ON_SH bears ashore2015-07-26T02:38:57+00:00monthlyhttps://polarbearscience.com/2015/07/23/polar-bear-habitat-update-eastern-canada-well-above-normal-lots-of-sea-ice-worldwide/https://polarbearscience.com/wp-content/uploads/2015/07/masie_all_zoom_v01_2015203_4km.pngmasie_all_zoom_v01_2015203_4kmhttps://polarbearscience.com/wp-content/uploads/2015/07/barents-sea-ice-extent-2015-july-23_nis.pngBarents Sea ice extent 2015 July 23_NIShttps://polarbearscience.com/wp-content/uploads/2015/07/svalbard-ice-extent-2015-july-23_nis.pngSvalbard ice extent 2015 July 23_NIShttps://polarbearscience.com/wp-content/uploads/2015/07/beaufort-sea-same-week-23-july-1968_2015-with-average_cis.pngBeaufort Sea same week 23 July 1968_2015 with average_CIShttps://polarbearscience.com/wp-content/uploads/2015/07/foxe-basin-same-week-23-july-1968-2015-cis.pngFoxe Basin same week 23 July 1968-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/07/davis-strait-same-week-july-23-1971-2015-cis.pngDavis Strait same week July 23 1971-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/07/hudson-bay-same-week-23-july-1971-2015.pngHudson Bay same week 23 July 1971-2015https://polarbearscience.com/wp-content/uploads/2015/07/map-southernhudsonbay_lg.jpgmap-SouthernHudsonBay_lgIUCN PGSG SHB boundaryhttps://polarbearscience.com/wp-content/uploads/2015/07/stirling-01-no-date_sm3.jpgStirling 01 no date_smhttps://polarbearscience.com/wp-content/uploads/2015/07/stirling-01-no-date_sm2.jpgStirling 01 no date_sm2015-07-23T16:32:28+00:00monthlyhttps://polarbearscience.com/2015/07/22/heavy-ice-in-hudson-bay-derails-arcticnet-global-warming-research-plans-irony-bites/https://polarbearscience.com/wp-content/uploads/2015/07/fogo-island_newfoundland_pb-sighting-23-april-2015.jpgFogo Island_Newfoundland_PB sighting 23 April 2015https://polarbearscience.com/wp-content/uploads/2015/07/sea-ice-hudson-bay-22-july-2015-ice-breaker-destinations.jpgSea ice Hudson Bay 22 July 2015 ice breaker destinationsSea ice at 22 July 2015, with Inukjuak (EHB) and Iqaliuk, Baffin Island marked. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/07/hudson-bay-breakup-july-22-2015_cis.gifHudson Bay breakup July 22 2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/07/ccgs-pierre-radisson-in-sea-ice_to_iqaluit_july-17_2015.jpgccgs-pierre-radisson-in-sea-ice_to_Iqaluit_july 17_20152015-07-23T03:33:58+00:00monthlyhttps://polarbearscience.com/2015/07/21/alarm-over-future-summer-polar-bear-habitat-disguises-how-good-conditions-are-right-now/https://polarbearscience.com/wp-content/uploads/2015/07/derocher-tweet-2015-july-20-tracking-update-whb.jpgDerocher tweet 2015 July 20 tracking update WHBhttps://polarbearscience.com/wp-content/uploads/2015/07/hudson-bay-bears-whb_2015-july-20-from-derocher.jpgHudson Bay bears WHB_2015 July 20 from Derocherhttps://polarbearscience.com/wp-content/uploads/2015/07/r01_beaufort_sea_ts1.pngr01_Beaufort_Sea_tshttps://polarbearscience.com/wp-content/uploads/2015/07/r10_hudson_bay_ts.pngr10_Hudson_Bay_tshttps://polarbearscience.com/wp-content/uploads/2015/07/r02_chukchi_sea_ts.pngr02_Chukchi_Sea_tshttps://polarbearscience.com/wp-content/uploads/2015/07/pb-walking_patrick-kelly-21-august-2009_uscoast-guard_lg.jpgPolar BearA polar bear walks on the Arctic Ocean ice Aug. 21, 2009.https://polarbearscience.com/wp-content/uploads/2015/07/hudson-bay-breakup-july-20-2015_cis.gifHudson Bay breakup July 20 2015_CIS2015-07-21T03:03:29+00:00monthlyhttps://polarbearscience.com/2015/07/16/new-paper-finds-experts-were-wrong-polar-bears-are-not-walking-hibernators/https://polarbearscience.com/wp-content/uploads/2015/07/whiteman-and-colleagues-male-bear-october-on-ice-2008.jpgWhiteman and colleagues male bear October on ice 2008Whiteman and colleagues on the ice, 2008.https://polarbearscience.com/wp-content/uploads/2015/07/polarbears-arcticnatlwildliferefuge-suzannemiller-usfws_labeled_sm.jpgpolarbears-arcticnatlwildliferefuge-suzannemiller-usfws_labeled_smhttps://polarbearscience.com/wp-content/uploads/2015/07/stirling-01-no-date_sm1.jpgStirling 01 no date_smhttps://polarbearscience.com/wp-content/uploads/2015/07/stirling-01-no-date_sm.jpgStirling 01 no date_sm2015-07-16T18:26:58+00:00monthlyhttps://polarbearscience.com/2015/07/15/polar-bear-habitat-looking-good-for-early-summer-last-days-before-the-fast/https://polarbearscience.com/wp-content/uploads/2015/07/canadian-arctic-same-week-july-16-1971-2015-cis.pngCanadian Arctic same week July 16 1971-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/07/beaufort-sea-same-week-16-july-1968_2015-with-average_cis.pngBeaufort Sea same week 16 July 1968_2015 with average_CIShttps://polarbearscience.com/wp-content/uploads/2015/07/baffin-bay-same-week-july-16-1968_2015-with-average_cis.pngBaffin Bay same week July 16 1968_2015 with average_CIShttps://polarbearscience.com/wp-content/uploads/2015/07/foxe-basin-same-week-16-july-1968-2015-cis.pngFoxe Basin same week 16 July 1968-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/07/davis-strait-same-week-july-16-1971-2015-cis.pngDavis Strait same week July 16 1971-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/07/hudson-bay-same-week-16-july-1971-2015.pngHudson Bay same week 16 July 1971-2015https://polarbearscience.com/wp-content/uploads/2015/07/hudson-bay-breakup-2015-vs-2009-at-14-july_masie.jpgHudson Bay breakup 2015 vs 2009 at 14 July_MASIEFigure 4. Sea ice extent on Hudson Bay at 15 July 2019 vs. 2015, and mean date of WHB polar bears shore. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/07/hudson-bay-breakup-july-15-2015_cis.gifHudson Bay breakup July 15 2015_CISFigure 3. Sea ice concentration in Canada at 15 July 2015. Canadian Ice Service. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/07/barents-sea-ice-extent-2015-july-15_nis.pngBarents Sea ice extent 2015 July 15_NISFigure 2. Barents Sea ice map from <a href="http://polarview.met.no/" target="_blank">Norwegian Ice Service</a>. https://polarbearscience.com/wp-content/uploads/2015/07/sea-ice-extent-2015-july-14-nsidc_sm_wuwt.pngSea ice extent 2015 July 14 NSIDC_sm_WUWTFigure 1. Sea ice extent with anomaly. NSIDC. Click to enlarge.2015-07-16T03:34:45+00:00monthlyhttps://polarbearscience.com/2015/07/14/its-the-middle-of-july-do-researchers-know-where-their-hudson-bay-polar-bears-are/https://polarbearscience.com/wp-content/uploads/2015/07/arctic-sea-ice-canada-2015_2014_14-july.jpgArctic sea ice Canada 2015_2014_14 JulyFigure 3. Sea ice in Canada 2015 vs. 2014 at 14 July. Hudson Bay, Davis Strait and Eastern Beaufort Sea.https://polarbearscience.com/wp-content/uploads/2015/07/hudson-bay-breakup-2015_2014_14-july.jpgHudson Bay breakup 2015_2014_14 July2015-07-14T05:29:16+00:00monthlyhttps://polarbearscience.com/2015/07/08/sea-ice-breakup-update-high-ice-coverage-just-about-everywhere-even-hudson-bay/https://polarbearscience.com/wp-content/uploads/2015/07/hudson-bay-breakup-2014_wh_sh_at-july-08_pbi.jpgHudson Bay Breakup 2014_wh_sh_at July 08_PBIFigure 7. Positions of Western and Southern Hudson Bay females with collars, on <a href="http://www.polarbearsinternational.org/news-room/news/long-fast-begins" target="_blank"><span style="color:#3366ff;">remnant ice at 8 July.</span></a> Courtesy Polar Bears International.https://polarbearscience.com/wp-content/uploads/2015/07/derocher-tweet-2015-july-6-two-whb-bears-ashore.jpgDerocher tweet 2015 July 6 two WHB bears ashoreFigure 6. Tweet from Andrew Derocher noting 2 out of 9 collared WHB females were onshore on 6 July 2015. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/07/beaufort-sea-same-week-9-july-1968_2015-with-average_cis.pngBeaufort Sea same week 9 July 1968_2015 with average_CISFigure 5. Beaufort Sea ice coverage for the week 9 July, 1968-2015. CIS. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/07/baffin-bay-same-week-july-9-1968_2015-with-average_cis.pngBaffin Bay same week July 9 1968_2015 with average_CISFigure 4. Baffin Bay ice coverage for the week 9 July, 1968-2015. CIS. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/07/foxe-basin-same-week-9-july-1968-2015-cis.pngFoxe Basin same week 9 July 1968-2015 CISFigure 3. Foxe Basin ice coverage for the week 9 July, 1968-2015. CIS. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/07/davis-strait-same-week-july-9-1971-2015-cis.pngDavis Strait same week July 9 1971-2015 CISFigure 2. Davis Strain ice coverage for the week 9 July, 1971-2015. CIS. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/07/hudson-bay-same-week-9-july-1971-2015.pngHudson Bay same week 9 July 1971-2015Figure 1. Hudson Bay ice coverage for the week 9 July, 1971-2015. CIS. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/07/hudson-bay-breakup-july-8-2015_cis.gifHudson Bay breakup July 8 2015_CIS2015-07-12T16:47:54+00:00monthlyhttps://polarbearscience.com/2015/07/08/polar-bear-doom-and-gloom-from-usgs-vs-biologist-mitch-taylors-reasoned-thoughts/https://polarbearscience.com/wp-content/uploads/2015/07/taylor-interview_5-july-2015-polar-bear-numbers_radio.jpgTaylor interview_5 July 2015 Polar bear numbers_radio2015-07-09T18:53:05+00:00monthlyhttps://polarbearscience.com/2015/07/07/polar-bears-fine-now-but-give-us-more-money-us-fish-wildlife-management-plan-subtext/2015-07-07T17:39:33+00:00monthlyhttps://polarbearscience.com/2015/07/05/polar-bear-science-envy-polar-bear-biologist-andrew-derocher-steals-my-blog-name/https://polarbearscience.com/wp-content/uploads/2015/07/derocher-lab-website-home_july-5-2015.jpgDerocher lab website home_July 5 2015https://polarbearscience.com/wp-content/uploads/2015/07/derocher-lab-twitter-page.jpgDerocher lab twitter pagehttps://polarbearscience.com/wp-content/uploads/2015/07/derocher-lab-website_my-google-search_marked.jpgDerocher lab website_my google search_markedhttps://polarbearscience.com/wp-content/uploads/2015/07/derocher-lab-website-title-page_july-5-2015.jpgDerocher lab website title page_July 5 20152015-07-05T21:11:33+00:00monthlyhttps://polarbearscience.com/2015/07/05/tracking-polar-bears-in-the-southern-beaufort-june-2015-all-17-bears-out-on-the-sea-ice/https://polarbearscience.com/wp-content/uploads/2015/07/beaufort-sea-ice-thickness_2015-july-5-nrl.gifBeaufort sea ice thickness_2015 July 5 NRLFigure 3. Beaufort Sea ice thickness at 5 July 2015. NRL. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/07/beaufort-sea-ice-concentration_2015-july-5-nrl2.gifBeaufort sea ice concentration_2015 July 5 NRLhttps://polarbearscience.com/wp-content/uploads/2015/07/beaufort-sea-ice-concentration_2015-june-23-nrl.gifBeaufort sea ice concentration_2015 June 23 NRLhttps://polarbearscience.com/wp-content/uploads/2015/07/beaufort-sea-ice-concentration_2015-july-5-nrl1.gifBeaufort sea ice concentration_2015 July 5 NRLhttps://polarbearscience.com/wp-content/uploads/2015/07/beaufort-sea-ice-concentration_2015-july-5-nrl.gifBeaufort sea ice concentration_2015 July 5 NRLFigure 3. Beaufort Sea ice concentration at 5 July 2015. NRL. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/07/r01_beaufort_sea_ts.pngr01_Beaufort_Sea_tsFigure 2. Beaufort Sea ice extent to July 3, 2011-2015. NSIDC MASIE. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/07/beaufort-tracking-usgs-bear-movements-june-2015-lg.jpgBeaufort tracking USGS bear-movements-June 2015 lgFigure 1. Original caption: "Movements of 17 satellite-tagged polar bears for the month of June, 2015. Polar bears were tagged in 2014 and 2015 on the spring-time sea ice of the southern Beaufort Sea. Sixteen of these bears have satellite collar transmitters and 1 of these bears has a glue-on satellite transmitter. Polar bear satellite telemetry data are shown with MODIS imagery from 21 June, 2015." Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/07/alaska-pb-usgs_marked.jpgAlaska PB USGS_marked2015-07-05T14:01:15+00:00monthlyhttps://polarbearscience.com/2015/06/30/usgs-promotes-another-flawed-polar-bear-model-ghg-emissions-still-primary-threat/https://polarbearscience.com/wp-content/uploads/2015/06/polarbearcv1_usgs_2009.jpgPolarBearCV1_USGS_20092015-07-02T15:40:25+00:00monthlyhttps://polarbearscience.com/2015/07/01/hudson-bay-breakup-later-than-average-longer-hunting-season-for-polar-bears/https://polarbearscience.com/wp-content/uploads/2015/07/hudson-bay-same-week-2-july-1971-2015.pngHudson Bay same week 2 July 1971-2015Figure 8. Hudson Bay sea ice coverage, 1971-2015 for the week 2 July. CIS. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/07/davis-strait-same-week-july-2-1971-2015-cis.pngDavis Strait same week July 2 1971-2015 CISFigure 10. Davis Strait sea ice coverage 1971-2015 at 2 July. CIS. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/07/foxe-basin-same-week-2-july-1968-2015-cis.pngFoxe Basin same week 2 July 1968-2015 CISFigure 9. Foxe Basin sea ice coverage 1968-2015 at 2 July. CIS. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/07/hudson-bay-regional-same-week-2-july-1971-2015.pngHudson Bay regional same week 2 July 1971-2015Figure 8. Hudson Bay sea ice coverage, 1971-2015 for the week 2 July. CIS. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/sea-ice-extent-2015-june-29_label-wuwt.pngSea ice extent 2015 June 29_label WUWT Figure 7. Sea ice extent at 29 June 2015. Courtesy NSIDC and <a href="http://wattsupwiththat.com/reference-pages/sea-ice-page/" target="_blank">WUWT Sea Ice Page</a>. https://polarbearscience.com/wp-content/uploads/2015/06/ice-thickness-navy-forecast-june-30-2015.gifIce thickness Navy forecast June 30 2015Figure 6. Sea ice thickness estimates at 30 June 2015. Courtesy NRL. https://polarbearscience.com/wp-content/uploads/2015/06/ice-concentration-navy-forecast-june-30-2015.gifIce concentration Navy forecast June 30 2015Figure 5. Sea ice concentration estimates at 30 June 2015. Courtesy NRL. https://polarbearscience.com/wp-content/uploads/2015/06/hudson-bay-breakup-2014-pb-tracking_30-june-vs-8-july_pbi.jpgHudson Bay breakup 2014 PB tracking_30 June vs 8 July_PBIFigure 4. Sea ice coverage and locations of <a href="http://www.polarbearsinternational.org/news-room/news/long-fast-begins" target="_blank">female polar bears with tracking collars</a> for 30 June 2014 and 8 July 2014 (black, Western Hudson Bay bears; blue, Southern Hudson Bay bears), courtesy Alysa McCall, Polar Bears International. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/r10_hudson_bay_ts1.pngr10_Hudson_Bay_tsFigure. 3 Sea ice extent for Hudson Bay for 2011-2015 at June 29. NSIDC.https://polarbearscience.com/wp-content/uploads/2015/06/hudson-bay-breakup-2014-vs-2015_30-june_polarbearscience.jpgHudson Bay breakup 2014 vs 2015_30 June_PolarBearScienceFigure 1. Left, Sea ice coverage and locations of <a href="http://www.polarbearsinternational.org/news-room/news/paw-prints-beach" target="_blank">female polar bears with tracking collars</a> for 30 June 2014 (black, Western Hudson Bay bears; blue, Southern Hudson Bay bears), courtesy Alysa McCall, Polar Bears International; Right, sea ice coverage for 30 June 2015, cropped from the CIS daily map. Click to enlarge.2015-07-02T14:40:12+00:00monthlyhttps://polarbearscience.com/2015/06/25/polar-bear-habitat-update-many-bears-on-the-ice-in-hudson-bay-lots-of-sea-ice-globally/https://polarbearscience.com/wp-content/uploads/2015/06/sea-ice-extent-2015-june-23_label-wuwt.pngSea ice extent 2015 June 23_label WUWTFigure 8. Global sea ice extend with anomaly for 23 June 2015. NSIDC, courtesy. WUWT Sea Ice Page. https://polarbearscience.com/wp-content/uploads/2015/06/barents-sea-ice-extent-2015-june-25_nis.pngBarents Sea ice extent 2015 June 25_NISFigure 7. Barents Sea ice concentration at 25 June 2015. NIS.https://polarbearscience.com/wp-content/uploads/2015/06/beaufort-sea-ice-concentration_2015-june-23-nrl.gifBeaufort sea ice concentration_2015 June 23 NRLFigure 6. Sea ice concentration over the Chukchi and Beaufort Seas. NRL, http://www.nrlmry.navy.mil/ courtesy WUWT Beaufort Sea Ice Page. https://polarbearscience.com/wp-content/uploads/2015/06/beaufort-sea-same-week-25-june-1968-2014-at-24-june-2015.pngBeaufort Sea same week 25 June 1968-2014 at 24 June 2015Figure 4. Sea ice coverage for the Beaufort Sea, week of 25 June, 1968-2015. CIS.https://polarbearscience.com/wp-content/uploads/2015/06/derocher-tweet-2015-june-23-some-tracked-pbs-almost-onshore_map.jpgDerocher tweet 2015 June 23 some tracked pbs almost onshore_mapFigure 3. Locations of nine Western Hudson Bay polar bears on 22 June 2015. Tweet from polar bear biologist Andrew Derocher, 23 June 2015. https://polarbearscience.com/wp-content/uploads/2015/06/hudson-bay-breakup-june-25-2015_cis.gifHudson Bay breakup June 25 2015_CISFigure 2. Sea ice concentration for Canada at 25 June 2015. End of spring for the Arctic is 30 June. CIS.https://polarbearscience.com/wp-content/uploads/2015/06/hudson-bay-regional-departure-from-normal_2015-june-22_cis.gifHudson Bay regional departure from normal_2015 June 22_CISFigure 1. Hudson Bay sea ice, difference from average at 22 June 2015. Blue is less than average, red is more than average. CIS. https://polarbearscience.com/wp-content/uploads/2015/06/hudson-bay-breakup-2015-june-22-and-24_sm.jpgHudson Bay breakup 2015 June 22 and 24_sm2015-06-25T15:35:55+00:00monthlyhttps://polarbearscience.com/2015/06/24/many-polar-bears-cubs-seen-in-svalbard-this-year-says-norwegian-biologist/https://polarbearscience.com/wp-content/uploads/2015/06/svalbard-sea-ice-2014-vs-2013-at-nov-1_masie_polarbearscience1.jpgSvalbard sea ice 2014 vs 2013 at Nov 1_MASIE_PolarBearScienceFigure 2. Barents Sea ice coverage at 1 November 2013 (top) and 2014 (bottom). Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/svalbard-sea-ice-2014-vs-2013-at-nov-1_masie_polarbearscience.jpgSvalbard sea ice 2014 vs 2013 at Nov 1_MASIE_PolarBearScienceFigure 2. Sea ice coverage in the Barents Sea at 1 November 2013 (top) and 2014 (bottom). Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/sea-ice-extent-2014-aug-5-2014_nsidc.pngSea ice extent 2014 Aug 5 2014_NSIDCFigure 3. Sea ice extent at 5 August 2014. Almost everywhere except Svalbard was below average.https://polarbearscience.com/wp-content/uploads/2015/06/svalbard-cub-w-jon-aars_norsk-polarinstitutt_june-2015-article.jpgSvalbard cub w Jon Aars_Norsk Polarinstitutt_June 2015 articleFigure 1. Biologist Jon Aars with a Svalbard cub. https://polarbearscience.com/wp-content/uploads/2015/06/svalbard-female-with-cubs_roy-mangersnes-wildphoto_june-23-2015.jpgSvalbard female with cubs_Roy Mangersnes WILDPHOTO_June 23 2015 Roy Mangersnes /<a href="http://wildphoto.com/expeditions/autumn-light/" target="_blank"> Wildphoto</a> 2015-06-24T04:47:47+00:00monthlyhttps://polarbearscience.com/2015/06/05/hudson-bay-breakup-date-for-2015-will-really-depend-on-which-definition-you-use/https://polarbearscience.com/wp-content/uploads/2015/06/cherry_derocher-et-al-2013_whb-polar-bears_fig-1-jpeg.jpgCherry_Derocher et al 2013_WHB polar bears_fig 1 JPEGFigure 8. Defining breakup for WHB polar bears when sea ice coverage reaches 30% over western Hudson Bay, from Cherry et al. 2013. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/cherry_derocher-et-al-2013-in-press_whb-polar-bears_fig-1.pngCherry_Derocher et al 2013 in press_WHB polar bears_fig 1Figure 8. https://polarbearscience.com/wp-content/uploads/2015/06/hudson-bay-age_2015-june-1_cis.gifHudson Bay age_2015 June 1_CISFigure 5. Sea ice development (age) over the Hudson Bay region at 1 June 2015. CIS. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/sea-ice-canada-2015-june-5_cis.gifSea ice Canada 2015 June 5_CISFigure 5. Sea ice coverage over Hudson Bay at 5 June 2015. Canadian Ice Service. Click to enlarge.2015-06-22T15:54:13+00:00monthlyhttps://polarbearscience.com/2015/06/08/my-new-arctic-fallacy-paper-sea-ice-stability-and-the-polar-bear/2015-06-22T15:53:46+00:00monthlyhttps://polarbearscience.com/2015/06/16/same-amount-of-sea-ice-for-hudson-bay-polar-bears-as-2013-bears-still-on-the-ice/https://polarbearscience.com/wp-content/uploads/2015/06/beaufort-ice-age-and-concentration-15_17-june-2015.jpgBeaufort ice age and concentration 15_17 June 2015Figure 6. Beaufort Sea ice age for the week of 15 June 2015 (top), CIS; Beaufort sea ice concentration at 17 June 2015 (bottom), NRL. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/beaufort-sea-same-week-june-18-1968_2015-with-average_cis.pngBeaufort Sea same week June 18 1968_2015 with average_CISFigure 5. Beaufort Sea ice coverage for the week of 18 June, 1971-2015. CIS. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/beaufort-sea-masie-charts-16-june-day-167.jpgBeaufort Sea Masie charts 16 June day 167Figure 4. Beaufort Sea ice cover at 16 June 2015 (centre), with the most ice, vs. 2008 (top) and 2012 (bottom). Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/hudson-bay-sea-ice-age-week-of-15-june-2015-cis.jpgHudson Bay sea ice age week of 15 June 2015 CISFigure 2c. Hudson Bay sea ice age for the week of 15 June. CIS. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/hudson-bay-cis-week-of-15-june-vs-8-june-2015.jpgHudson Bay CIS week of 15 June vs 8 June 2015Figure 2c. Hudson Bay sea ice concentration for the week of 15 June (top) vs. 8 June (bottom). CIS. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/hudson-bay-masie-charts-16-june-day-167.jpgHudson Bay Masie charts 16 June day 167Figure 2b. Sea ice coverage at 16 June 2015 (centre) vs. 2011 (top) and 2013 (bottom). NSIDC Masie charts. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/hudson-bay-same-week-june-18-1971-2015cis.pngHudson Bay same week June 18 1971-2015CISFigure 2a. Sea ice coverage over Hudson Bay for the week of 18 June, 1971-2015. CIS. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/sea-ice-extent-2015-june-13-nsidc-with-anomaly_wuwt.pngSea ice extent 2015 June 13 NSIDC with anomaly_WUWTFigure 3. Global sea ice extent for the Arctic, NSIDC for 13 June 2015. A little below average but still lots of polar bear habitat remaining in all subpopulation regions. Courtesy <a href="http://wattsupwiththat.com/reference-pages/sea-ice-page/" target="_blank">WUWT Sea Ice Page.</a>https://polarbearscience.com/wp-content/uploads/2015/06/sea-ice-extent-canada-2015-june-15-cis.gifSea ice extent Canada 2015 June 15 CISFigure 2. Sea ice extent in Canada, 15 June 2015. From the <a href="http://www.ec.gc.ca/glaces-ice/default.asp?lang=En&n=542306E5-1" target="_blank">Canadian Ice Service</a>https://polarbearscience.com/wp-content/uploads/2015/06/hudson-bay-polar-bears-at-15-june-2015.jpgHudson Bay Polar Bears at 15 June 2015Figure 1. Seven out of ten Hudson Bay polar bears with tracking collars are out on the sea ice, along the ice edge. At least one appears to be utilizing shorefast ice near Churchill and one lone bear is off on a journey to Davis Strait, hunting on the remaining sea ice there. Original <a href="https://twitter.com/AEDerocher/status/610563156797075456" target="_blank">here</a>. 2015-06-22T15:52:38+00:00monthlyhttps://polarbearscience.com/2015/06/17/when-was-the-earliest-ice-breakup-year-for-western-hudson-bay-polar-bears/https://polarbearscience.com/wp-content/uploads/2015/06/sea-ice-extent-canada-2015-june-17-cis.gifSea ice extent Canada 2015 June 17 CIShttps://polarbearscience.com/wp-content/uploads/2015/06/derocher-tweet-2015-june-1-whb-earliest-breakup-on-record.jpgDerocher tweet 2015 June 1 WHB earliest breakup on recordhttps://polarbearscience.com/wp-content/uploads/2015/06/scott-and-marshall_2010-fig-5_no-caption.jpgScott and Marshall_2010 fig 5_no captionFigure 2. Breakup dates for Western Hudson Bay with error bars of ± 15% (which no one else ever includes), for 1971-2008. This is figure 5 from Scott and Marshall 2010. Click to enlarge.[https://polarbearscience.com/wp-content/uploads/2015/06/hudson-bay-same-week-june-18-1971-2014-cis.pngHudson Bay same week June 18 1971-2014 CISFigure 6. Sea ice extent coverage over Hudson Bay, by percentage, for the week of 18 June, 1971-2014. Note that 1990 ice coverage is down to about 60% over the entire bay, 2 weeks after “breakup” supposedly occurred. Note the position of 1999 at 40%, corresponds closely to Cherry et al.’s breakup date for that year as 17 June and the earliest between 1991 and 2009 (Table 1). Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/whb-breakup_ice-coverage-jun-4_1971_2015_lg.jpgWHB breakup_ice coverage Jun 4_1971_2015_lgFigure 5. Sea ice extent coverage over Hudson Bay, by percentage, for the week of 04 June, 1971-2015. Three earliest breakup years marked, with the exact date when breakup was called using satellite data by Lunn et al. 2013. Note the amount for 1990 is estimated (grey) but is almost 80% coverage. Compare to two weeks later, Fig. 7, when data were more secure. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/june-1990_nsidc.jpgJune 1990_NSIDCFigure 4. Sea ice extent average for June 1990 (end of June), according to NSIDC. Breakup for Hudson Bay in 1990 was said to have occurred at the beginning of June (2-6). How is that possible with this much ice showing as the June average (which is usually quite similar to the extent for the end of the month). Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/scott-and-marshall_2010-fig-5.jpgScott and Marshall_2010 fig 5Figure 2. Breakup dates for Western Hudson Bay with error bars of ± 15% (which no one else ever includes), for 1971-2008. This is figure 5 from Scott and Marshall 2010. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/whb-breakup-dates-by-publication-polarbearscience_16-jun-2015_sm.jpgWHB breakup dates by publication PolarBearScience_16 Jun 2015_smFigure 1. Breakup dates 1975-2012, from Stirling et al. 1999, Stirling and Parkinson 2006, Stirling and Derocher 2012, and Lunn et al. 2013. Internal labels added by me; dates may be off by a day. Note how much of an outlier 1990 is in most of these plots, but also, the differences in dates for breakup in 2003. The two charts on the left used sea ice chart data calculated weekly; the two on the right used satellite data calculated daily. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/hudson-bay-same-week-4-june-1971-2015-cis1.pngHudson Bay same week 4 June 1971-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/06/02-jun-1990-vs-1991-cryo.jpg02 Jun 1990 vs 1991 CryoFigure 4. Sea ice concentration at 2 June 1990 (left) and 1991 (right). 2 June was the official breakup date for WHB. Click to enlarge.2015-06-17T23:51:01+00:00monthlyhttps://polarbearscience.com/2015/06/10/hudson-bay-breakup-progressing-slowly-still-lots-of-polar-bear-habitat/https://polarbearscience.com/wp-content/uploads/2015/06/cherry-et-al-breakup-dates-for-whb_1991-2009-with-average_july-8-2014.jpgCherry et al breakup dates for WHB_1991-2009 with average_July 8 2014https://polarbearscience.com/wp-content/uploads/2015/06/hudson-bay-breakup-8-june-2015-vs-2009-and-2011_polarbearscience.jpgHudson Bay breakup 8 June 2015 vs 2009 and 2011_PolarBearScienceFigure 4. Sea ice coverage at 8 June 2015 (centre) to the same date in 2009 (an late breakup year, July 2, top) and 2011 (an early breakup year, June 5, below). Compare amount of ice in each of the three coloured areas. Note that in 2015 there is less open water in Hudson Strait (magenta) and eastern Hudson Bay (yellow) than there was in 2009 – despite the larger area of open water in NW Hudson Bay this year. Click to enlarge. https://polarbearscience.com/wp-content/uploads/2015/06/sea-ice-canada-2015-june-10_cis.gifSea ice Canada 2015 June 10_CISFigure 2. Sea ice concentration in Canada at 10 June 2015. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/hudson-bay-same-week-june-11-1971-2015-cis.pngHudson Bay same week June 11 1971-2015 CISFigure 1. Sea ice coverage, by percentage, for 1971-2015 for the week of 11 June. Canadian Ice Service. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/hudson-bay-breakup-8-june-2015-vs-1-june_polarbearscience.jpgHudson Bay breakup 8 June 2015 vs 1 June_PolarBearScience2015-06-11T01:28:27+00:00monthlyhttps://polarbearscience.com/2015/06/03/tracking-polar-bears-in-the-southern-beaufort-may-2015-thick-ice-and-polynyas/https://polarbearscience.com/wp-content/uploads/2015/06/beaufort-sea-ice-thickness_2015-may-22-nrl.gifBeaufort sea ice thickness_2015 May 22 NRLFigure 2. Sea ice thickness map for 22 May, 2015 (courtesy <a href="http://www7320.nrlssc.navy.mil/hycomARC/beaufort.html" target="_blank">Navy Research Laboratory</a>), the <a href="http://www7320.nrlssc.navy.mil/hycomARC/navo/beaufortictn/nowcast/ictn2015052118_2015052200_040_beaufortictn.001.gif" target="_blank">same day as Fig. 1</a> above. Multiyear pack ice offshore and compressed ice nearshore (green/yellow/red areas) would be poor seal hunting habitat for polar bears, given the 3-5 m (10-16 ft) thickness. Most of the region shown in Fig. 1 lies below 76⁰N latitude on this map (which is a different projection). Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/06/beaufort-tracking-usgs-bear-movements-may-2015-lg_marked.jpgBeaufort tracking USGS bear-movements-May 2015 lg_markedFigure 1. Original caption: “Movements of 23 satellite-tagged polar bears for the month of May, 2015. Polar bears were tagged in 2014 and 2015 on the spring-time sea ice of the southern Beaufort Sea. Seventeen of these bears have satellite collar transmitters and 6 of these bears have glue-on satellite transmitters. Polar bear satellite telemetry data are shown with MODIS imagery from 22 May, 2015.” Original image <a href="http://alaska.usgs.gov/science/biology/polar_bears/images/bear-movements-May-2015.jpg" target="_blank">here</a>. North latitude labels added. Click to enlarge. 2015-06-04T04:20:13+00:00monthlyhttps://polarbearscience.com/2015/05/18/polar-bear-habitat-update-hudson-bay-sea-ice-breakup-on-track/https://polarbearscience.com/wp-content/uploads/2015/05/hudson-bay-ice-at-17-may-compared-2015_2011_2009_2006_2007_sm.jpgHudson Bay ice at 17 May compared 2015_2011_2009_2006_2007_smFigure 5. Hudson Bay breakup patterns for 17 May (Region 10, day 137) compared: 2015, 2011, 2009, 2010, 2007, 2006. NSIDC MAISE products <a href="ftp://sidads.colorado.edu/DATASETS/NOAA/G02186/png/" target="_blank">archive</a>. Note that 2<a href="https://polarbearscience.com/2014/07/10/breakup-date-average-for-w-hudson-bay-is-july-1-this-year-its-late-again/" target="_blank">009 had one of the latest breakup dates</a> on record (30 July), while 2006 was relatively early (mid-June). Comparing the current year to only one previous year is uninformative because breakup patterns and dates are so variable year to year. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/05/sea-ice-canada-2015-may-14_cis.gifSea ice Canada 2015 May 14_CIShttps://polarbearscience.com/wp-content/uploads/2015/05/sea-ice-in-canada-may-23-2013.gifSea ice in Canada May 23 2013Figure 2. Sea ice coverage over Canada at 23 May 2013, showing patches of open water and/or low ice concentrations along the southwest coast of Hudson Bay, near Churchill (a bit south of where an opening occurs this year), and along the west coast.https://polarbearscience.com/wp-content/uploads/2015/05/hudson-bay-same-week-may-14-1971-2015-cis.pngHudson Bay same week May 14 1971-2015 CISFigure 1. Sea ice coverage over Hudson Bay for the week of 14 May, 1971-2015. Canadian Ice Service. Click to enlarge. https://polarbearscience.com/wp-content/uploads/2015/05/sea-ice-canada-2015-may-18_cis.gifSea ice Canada 2015 May 18_CIS2015-05-27T11:13:19+00:00monthlyhttps://polarbearscience.com/2015/05/26/hudson-bay-sea-ice-coverage-is-atypical-this-year-but-what-does-that-mean-for-polar-bears/https://polarbearscience.com/wp-content/uploads/2015/05/hudson-bay-breakup-patterns-compared_1-july_polarbearscience.jpgHudson Bay breakup patterns compared_1 July_PolarBearScienceFigure 8. Hudson Bay sea ice patterns compared at 01 July (Region 10, day 182), which has been the average date of breakup since 1991: 2014, 2013, 2006, 2009. NSIDC MAISE products <span style="color:#3366ff;"><a style="color:#3366ff;" href="ftp://sidads.colorado.edu/DATASETS/NOAA/G02186/png/" target="_blank">archive</a>.</span> Note that <span style="color:#3366ff;"><a style="color:#3366ff;" href="https://polarbearscience.com/2014/07/10/breakup-date-average-for-w-hudson-bay-is-july-1-this-year-its-late-again/" target="_blank">2009 had one of the latest breakup dates</a></span> on record (30 July), while 2006 was relatively early (mid-June). Breakup ice patterns and dates for Hudson Bay are variable year to year, as is ice cover over Hudson Strait. http://en.wikipedia.org/wiki/Hudson_Strait Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/05/hudson-bay-regional-same-week-may-21-1971-2015-cis1.pngHudson Bay Regional same week May 21 1971-2015 CISFigure 7. Sea ice cover over Hudson Bay, Hudson Strait and southern Davis Strait for the week of 21 May, 1971-2015. CIS. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/05/hudson-bay-same-week-may-21-1971-2015-cis1.pngHudson Bay same week May 21 1971-2015 CISFigure 6. Sea ice cover over Hudson Bay for the week of 21 May, 1971-2015. CIS.https://polarbearscience.com/wp-content/uploads/2015/05/hudson-bay-breakup-patterns-compared_at-may-21_polarbearscience.jpgHudson Bay breakup patterns compared_at May 21_PolarBearScienceFigure 5. Comparing 2015 at 21 May (upper left) to 2009, 2010, 2011, 2006, and 2007. Original maps found <a href="ftp://sidads.colorado.edu/DATASETS/NOAA/G02186/png/" target="_blank">here</a>. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/05/hudson-bay-breakup-patterns-2015-vs-2011-at-may-21_polarbearscience.jpgHudson Bay breakup patterns 2015 vs 2011 at May 21_PolarBearScienceFigure 4. From NSIDC MAISE, 2011 (right) had almost exactly the same amount of ice cover at 21 May as did 2015 (left), according to CIS chart, Fig. 6. (below). However, the ice was distributed differently. There was an extensive wide shore lead along eastern Hudson Bay in 2011 that extended into James Bay – we are seeing none of that open water this year at this date (see also Fig.1). Despite the large patch of open water in NW Hudson Bay, there is also very little open water in Hudson Strait this year – much less than there was in 2011, which was an earlier breakup year.https://polarbearscience.com/wp-content/uploads/2015/05/sea-ice-concentration-2015-may-25-cryospheretoday.pngSea ice concentration 2015 May 25 CryosphereTodayFigure 3. Sea ice thickness, at May 25 2015, courtesy <a href="http://arctic.atmos.uiuc.edu/cryosphere/" target="_blank">Cryosphere Today</a>. Sea ice over Hudson Bay is virtually all 80-100% concentration and 1-2 m thick (not shown, see it <a href="http://www7320.nrlssc.navy.mil/hycomARC/navo/arcticict_nowcast_anim30d.gif" target="_blank">here</a>).https://polarbearscience.com/wp-content/uploads/2015/05/sea-ice-concentration-2015_arcticicennowcast_nrl_may-26.gifSea ice concentration 2015_arcticicennowcast_NRL_May 26Figure 2. Sea ice concentration at 26 May 2015, courtesy <a href="http://www7320.nrlssc.navy.mil/hycomARC/" target="_blank">Naval Research Laboratory</a>. https://polarbearscience.com/wp-content/uploads/2015/05/sea-ice-canada-2015-may-26_cis.gifSea ice Canada 2015 May 26_CISFigure 1. Sea ice extent over Hudson Bay and Hudson Strait at 26 May 2015. Canadian Ice Service. https://polarbearscience.com/wp-content/uploads/2015/05/churchill_polar_bear_2004-11-15-wikipedia.jpgChurchill_Polar_Bear_2004-11-15 Wikipedia2015-05-27T11:11:29+00:00monthlyhttps://polarbearscience.com/2015/05/21/arctic-polynyas-and-sea-ice-extent-in-canada-at-20-may-2015/https://polarbearscience.com/wp-content/uploads/2015/05/polynyas-and-shore-leads_smith-and-rigby-1981.jpgPolynyas and shore leads_Smith and Rigby 1981https://polarbearscience.com/wp-content/uploads/2015/05/sea-ice-canada-2015-may-20_cis.gifSea ice Canada 2015 May 20_CIShttps://polarbearscience.com/wp-content/uploads/2015/05/masie_all_zoom_v01_2015139_4km.pngmasie_all_zoom_v01_2015139_4kmhttps://polarbearscience.com/wp-content/uploads/2015/05/barents-sea-ice-2009_19-may_nis.jpgBarents Sea ice 2009_19 May_NIShttps://polarbearscience.com/wp-content/uploads/2015/05/barents-sea-ice-2014_19-may_nis.jpgBarents Sea ice 2014_19 May_NIShttps://polarbearscience.com/wp-content/uploads/2015/05/barents-sea-ice-plus-east-greenland-2015-may-19_nis.pngBarents Sea ice plus East Greenland 2015 May 19_NIShttps://polarbearscience.com/wp-content/uploads/2015/05/beaufort-sea-same-week-21-may-1968_2015-with-average_cis.pngBeaufort Sea same week 21 May 1968_2015 with average_CIShttps://polarbearscience.com/wp-content/uploads/2015/05/hudson-bay-same-week-may-21-1971-2015-cis.pngHudson Bay same week May 21 1971-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/05/hudson-bay-regional-same-week-may-21-1971-2015-cis.pngHudson Bay Regional same week May 21 1971-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/05/davis-strait-same-week-may-21-1971-2015-cis.pngDavis Strait same week May 21 1971-2015 CIS2015-05-21T23:28:01+00:00monthlyhttps://polarbearscience.com/2015/05/20/university-newspaper-misleads-readers-on-status-of-western-hudson-bay-polar-bears/https://polarbearscience.com/wp-content/uploads/2015/05/whb-fat_female_1984_stirling_w-label.jpgWHB fat_female_1984_Stirling_w labelFigure 1. The same very fat female discussed by Ramsay and Stirling (1988:614). Captured in July 1984, she weighed 410 kg (910 lbs) and was too fat to be fitted with a tracking collar (this picture was taken before a tag was put on her head). However, she had been captured 8 months before (November), after the <a href="https://polarbearscience.com/2014/10/15/churchill-problem-bears-and-early-breakup-dates-in-whb-the-1983-2004-anomalies/" target="_blank">disastrous winter of 1983</a>, when she weighed only 99 kg (218 lbs). See the <a href="http://www.polarbearsinternational.org/news-room/scientists-and-explorers-blog/she-or-isn%27t-she" target="_blank">recent discussion</a> at Polar Bears International. Picture taken by Ian Stirling, when he worked for the Canadian Wildlife Service. https://polarbearscience.com/wp-content/uploads/2015/05/whb-status-2015-iucn-pbsg_polarbearscience.jpgWHB status 2015 IUCN PBSG_PolarBearScience2015-05-20T18:28:53+00:00monthlyhttps://polarbearscience.com/2014/07/05/are-polar-bears-really-endangered/https://polarbearscience.com/wp-content/uploads/2014/07/cbd_save-the-polar-bear_final1.jpgCBD_Save the polar bear_finalFigure 1. Are polar bears really endangered? The US Fish and Wildlife Service thinks so, but only because Steven Amstrup, based on a computer model projecting sea ice out to 2050, said so (Amstrup et al. 2007). This information has been used by the Center for Biological Diversity and other NGOs, like WWF and Polar Bears International (where Amstrup is now employed), to solicit donations. 2015-05-18T16:32:01+00:00monthlyhttps://polarbearscience.com/2015/05/14/snow-depth-over-spring-sea-ice-affects-polar-bear-feeding-success-and-ringed-seal-survival/https://polarbearscience.com/wp-content/uploads/2015/05/ringed-seal-newborn-bjc3b8rn-frantzen_norwegian-polar-institute.jpgringed seal newborn Bjørn Frantzen_Norwegian Polar InstituteFigure 3. Newborn Barents Sea ringed seal with its white natal coat. <a href="http://www.npolar.no/en/species/ringed-seal.html" target="_blank">Norwegian Polar Institute,</a>Bjorn Frantzen photo.https://polarbearscience.com/wp-content/uploads/2015/05/ringed-seal_kit-kovacs_norwegian-polar-institute.jpgRinged seal_Kit Kovacs_Norwegian Polar InstituteFigure 1. Barents Sea ringed seal, Norwegian Polar Institute, Kit Kovacs photo.https://polarbearscience.com/wp-content/uploads/2015/05/snow-depth-manitoba_april-25-2015.jpgSnow depth Manitoba_April 25 2015Figure 2. Snow depth over North America, including Hudson Bay, at 25 April 2015. Courtesy <a href="http://www.theweathernetwork.com/maps/snow" target="_blank">The Weather Network</a>. https://polarbearscience.com/wp-content/uploads/2015/05/ringed-seal-lair_snow-and-ice-thickness_polarbearscience_sm.jpgRinged seal lair_snow and ice thickness_PolarBearScience_sm2015-05-14T14:12:54+00:00monthlyhttps://polarbearscience.com/2015/05/11/labrador-polar-bear-not-lost-or-in-danger-just-running-down-a-rural-highway/https://polarbearscience.com/wp-content/uploads/2015/05/sea-ice-canada-2015-may-10_cis.gifSea ice Canada 2015 May 10_CIShttps://polarbearscience.com/wp-content/uploads/2015/05/cartright-junction_labrador-location.jpgCartright Junction_Labrador locationhttps://polarbearscience.com/wp-content/uploads/2015/05/cartright-junction_labrador-pb_chelsea-morris-photo-from-video.jpgCartright Junction_Labrador pb_Chelsea Morris photo from video2015-05-11T16:53:51+00:00monthlyhttps://polarbearscience.com/2014/04/18/current-ice-conditions-dont-bode-well-for-beaufort-sea-polar-bears/https://polarbearscience.com/wp-content/uploads/2014/04/age1992_13.gifage1992_13https://polarbearscience.com/wp-content/uploads/2014/04/age1984_13.gifage1984_13https://polarbearscience.com/wp-content/uploads/2014/04/age2007_13.gifage2007_13https://polarbearscience.com/wp-content/uploads/2014/04/age2006_13.gifage2006_13https://polarbearscience.com/wp-content/uploads/2014/04/age2005_13.gifage2005_13https://polarbearscience.com/wp-content/uploads/2014/04/age2004_13.gifage2004_13https://polarbearscience.com/wp-content/uploads/2014/04/age2003_13.gifage2003_13https://polarbearscience.com/wp-content/uploads/2014/04/age2008_13.gifage2008_13https://polarbearscience.com/wp-content/uploads/2014/04/age2010_13.gifage2010_13https://polarbearscience.com/wp-content/uploads/2014/04/age2014_13.gifage2014_132015-05-10T23:25:15+00:00monthlyhttps://polarbearscience.com/2015/05/08/polar-bear-habitat-update-sea-ice-for-hunting-plentiful-in-all-subpopulation-regions/https://polarbearscience.com/wp-content/uploads/2015/05/croque_newfoundland_pb-sighting-location-may-7-2015.jpgCroque_newfoundland_PB sighting location May 7 2015https://polarbearscience.com/wp-content/uploads/2015/05/barents-sea-ice-plus-east-greenland-2015-may-8_nis.pngBarents Sea ice plus East Greenland 2015 May 8_NIShttps://polarbearscience.com/wp-content/uploads/2015/05/sea-ice-extent-2015-may-7-nsidc.pngSea ice extent 2015 May 7 NSIDChttps://polarbearscience.com/wp-content/uploads/2015/05/davis-strait-same-week-may-7-1971-2015-cis.pngDavis Strait same week May 7 1971-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/05/beaufort-sea-week-of-may-7-1968-2015-cis.pngBeaufort Sea week of May 7 1968-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/05/sea-ice-canada-2015-may-8_cis.gifSea ice Canada 2015 May 8_CIShttps://polarbearscience.com/wp-content/uploads/2015/05/newfoundland-sighting_polar-bear-in-croque_may-7-2015-photo.jpgNewfoundland sighting_Polar bear in Croque_May 7 2015 photoPhoto with this news story (7 May 2015): <a href="http://www.cbncompass.ca/News/Local/2015-05-07/article-4138899/%28Update%29Polar-bear-sighting-in-Croque/1" target="_blank">"(Update) Polar bear sighting in Croque"</a>https://polarbearscience.com/wp-content/uploads/2015/05/preferred-polar-bear-habitat-50pc-concentration_may-8-2015_polarbearscience.jpgPreferred polar bear habitat 50pc concentration_May 8 2015_PolarBearScience2015-05-08T16:56:00+00:00monthlyhttps://polarbearscience.com/2015/05/05/designated-critical-habitat-for-alaskan-polar-bears-offers-no-protection-from-thick-spring-ice-deaths/https://polarbearscience.com/wp-content/uploads/2015/05/chukchi_s-beaufort-regions-with-overlap_nyt_2009-article.jpgChukchi_S Beaufort regions with overlap_NYT_2009 articleFigure 2. Chukchi Sea and Southern Beaufort Sea polar bear habitat overlaps along much of the north coast of Alaska (about 1/2 of "critical habitat" designated: map accompanying "Polar Bear Habitat Proposed for Alaska" (<a href="http://www.nytimes.com/2009/10/23/science/earth/23bear.html" target="_blank">New York Times, October 22, 2009</a>)https://polarbearscience.com/wp-content/uploads/2015/05/usfws-polar-bear-critical-habitat-map-zoom_northslopeorg.jpgUSFWS Polar Bear Critical Habitat map zoom_NorthSlopeOrgFigure 1. US polar bear protected habitat, the big picture (from <a href="http://catalog.northslope.org/catalogs/4335-polar-bear-critical-habitat" target="_blank">North Slope Org website</a>).https://polarbearscience.com/wp-content/uploads/2015/05/critical-habitat-polar-bears-us_northslopeorg-map_labeled_polarbearscience.jpgCritical habitat Polar Bears US_NorthSlopeOrg map_labeled_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2015/05/polar_bear_male-on-sea-ice_alaska-katovik-regehr-photo_april-29-2005_sm-labeled.jpgPolar_Bear_male on sea ice_Alaska Katovik Regehr photo_April 29, 2005_sm labeled2015-05-05T17:12:37+00:00monthlyhttps://polarbearscience.com/2015/05/03/tracking-polar-bears-in-the-southern-beaufort-with-a-sea-ice-surprise-april-2015-map/https://polarbearscience.com/wp-content/uploads/2015/05/derocher-tweet-2015-april-30-e-beaufort-ice-worrisome.jpgDerocher tweet 2015 April 30 E Beaufort ice worrisomeFigure 6. Tweet from polar bear biologist Andrew Derocher, 30 April 2015https://polarbearscience.com/wp-content/uploads/2015/05/masie_all_zoom_v01_2015122_4km.pngmasie_all_zoom_v01_2015122_4kmFigure 5. MASIE sea ice map for 2 May 2015, day 122.https://polarbearscience.com/wp-content/uploads/2015/05/sea-ice-extent-2015-may-2-nsidc.pngSea ice extent 2015 May 2 NSIDCFigure 4. NSIDC map for 2 May 2015.https://polarbearscience.com/wp-content/uploads/2015/05/sea-ice-canada-2015-may-3_cis.gifSea ice Canada 2015 May 3_CISFigure 3. Canadian Ice Service sea ice concentration map for 3 May 2015. https://polarbearscience.com/wp-content/uploads/2015/05/beaufort-tracking-usgs-bear-movements-april-2015-lg.jpgBeaufort tracking USGS bear-movements-April 2015 lgFigure 1. Original caption: “Movements of 30 satellite-tagged polar bears for the month of April, 2015. Polar bears were tagged in 2014 and 2015 on the spring-time sea ice of the southern Beaufort Sea. Twenty-two of these bears have satellite collar transmitters and 8 of these bears have glue-on satellite transmitters. Polar bear satellite telemetry data are shown with MODIS imagery from 27 April, 2015.” Click to enlarge.2015-05-04T02:20:45+00:00monthlyhttps://polarbearscience.com/2015/04/29/polar-bear-season-for-newfoundland-residents-still-going-strong-recent-sightings-confirm/https://polarbearscience.com/wp-content/uploads/2015/04/newfoundland-sea-ice-conditions-at-25-and-27-april-2015.jpgNewfoundland sea ice conditions at 25 and 27 April 2015https://polarbearscience.com/wp-content/uploads/2015/04/fogo_on-fogo-island-newfoundland-details.jpgFogo_on Fogo Island Newfoundland details<a href="http://www.townoffogoisland.ca/home/" target="_blank">Fogo, Fogo Island, Newfoundland</a>. From the town website. https://polarbearscience.com/wp-content/uploads/2015/04/fog-is_nfld_april-24-2015-sighting_no-attribution-given.jpgFog Is_Nfld_April 24 2015 sighting_no attribution givenPhoto from <a href="http://vocm.com/newsarticle.asp?mn=2&id=54240&latest=1" target="_blank">VOCM news</a> report.https://polarbearscience.com/wp-content/uploads/2015/04/lascie_2004-town-website.jpgLaScie_2004 town website<a href="http://newfoundland.hilwin.nl/PHP/en/lascie.php" target="_blank">La Scie Newfoundland</a>, from the town website. https://polarbearscience.com/wp-content/uploads/2015/04/lascie-and-fogo-island-newfoundland-locations.jpgLaScie and Fogo Island Newfoundland locationshttps://polarbearscience.com/wp-content/uploads/2015/04/lascie_newfoundland_april-27-2015_colleengray-label.jpgLaScie_Newfoundland_April 27 2015_ColleenGray label2015-04-29T16:22:05+00:00monthlyhttps://polarbearscience.com/2014/09/03/the-politics-of-polar-bears-lengthy-excerpt-airs-across-canada-cue-the-outrage/2015-04-27T17:40:43+00:00monthlyhttps://polarbearscience.com/2015/04/24/melt-season-update-bering-sea-ice-abundant-davis-strait-ice-2nd-highest-since-1971/https://polarbearscience.com/wp-content/uploads/2015/04/barents-sea-ice-2015-april-22_nis.pngBarents Sea ice 2015 April 22_NISFigure 6.https://polarbearscience.com/wp-content/uploads/2015/04/regional-east-coast-week-of-april-23-1968-2015-cis.pngRegional East Coast week of April 23 1968-2015 CISFigure 5.https://polarbearscience.com/wp-content/uploads/2015/04/davis-strait-same-week-april-23-1971-2015-cis-with-trend-line.pngDavis Strait same week April 23 1971-2015 CIS with trend lineFigure 4.https://polarbearscience.com/wp-content/uploads/2015/04/sea-ice-extent-2015-feb-25-nsidc.pngSea ice extent 2015 Feb 25 NSIDCFigure 3. Sea ice extent at 25 February, when a “record low” maximum called for 2015 by NSIDC, at 14.54 mkm2). Although there was some melt, the ice was <a href="http://nsidc.org/arcticseaicenews/charctic-interactive-sea-ice-graph/" target="_blank">back up to 14.453 mkm2 by 26 March.</a> Note that both extents round to 14.5 mkm2 (i.e., not statistically different), creating what NSIDC called a <a href="http://nsidc.org/arcticseaicenews/2015/04/a-double-dip/" target="_blank">“double dip” maximum extent</a>. They are, however, sticking to the February date as the official 2015 spring maximum.https://polarbearscience.com/wp-content/uploads/2015/04/sea-ice-extent-2015-april-22-nsidc.pngSea ice extent 2015 April 22 NSIDCFigure 2. Sea ice extent at 22 April 2015 (13.976 mkm2), courtesy NSIDC. Note Bering Sea ice is about average, top left of map, but ice in Davis Strait in Eastern Canada (bottom centre) is well above average.https://polarbearscience.com/wp-content/uploads/2015/04/sea-ic-extent-2015-vs-2007-april-22_day-112_at-13_976_nsidc-interactive.jpgSea ic extent 2015 vs 2007 April 22_day 112_at 13_976_NSIDC interactiveFigure 1. Sea ice extent at 22 April (Julian day 112) for 2015, at 13.976 mkm2, was well within 2 standard deviations and higher than 2007 (shown) as well as 2004 and 2014 (not shown – see it for yourself here). 2015-04-24T04:35:16+00:00monthlyhttps://polarbearscience.com/2015/04/21/polar-bears-barely-survived-the-sea-ice-habitat-changes-of-the-last-ice-age-evidence-suggests/https://polarbearscience.com/wp-content/uploads/2015/04/robinson-projection-with-continental-shelves_www_learnnc_dot_org_2010.gifRobinson projection with continental shelves_www_learnnc_dot_org_2010https://polarbearscience.com/wp-content/uploads/2015/04/sea-ice-at-lgm-vs-modern-sea-ice-1979-march_april-15-2015.jpgSea ice at LGM vs modern sea ice 1979 March_April 15 2015https://polarbearscience.com/wp-content/uploads/2015/04/nh-perennial-and-annual-ice-at-lgm_jfbaichtal_polarbearscience_sm.jpgNH Perennial and Annual Ice at LGM_JFBaichtal_PolarBearScience_smFigure 2. Approximate sea ice extent at the Last Glacial Maximum: blue is perennial sea ice (present year round) and white is seasonal sea ice at its maximum (late winter). Purple is open ocean; black and dark grey are continental ice sheets; cream areas are land bridges exposed by lower sea level. Sea ice added by J.F. Baichtal, from <a href="http://en.wikipedia.org/wiki/Ice_age#/media/File:Iceage_north-intergl_glac_hg.png" target="_blank">this image</a>, labels added by SJ Crockford. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/04/iceage_north-glacial_sm_wikipedia.pngIceage_north-glacial_sm_wikipediaFigure 1. Usual depiction of ice age effects at the Last Glacial Maximum, ca. 26,000-11,500 years ago, emphasizing continental ice sheets and land bridges. Original <a href="http://en.wikipedia.org/wiki/Ice_age#/media/File:Iceage_north-glacial_hg.png" target="_blank">here</a>, courtesy Wikipedia.https://polarbearscience.com/wp-content/uploads/2015/04/polar_bear_usfws_no-date_sm.jpgpolar_bear_usfws_no date_sm2015-04-22T15:01:11+00:00monthlyhttps://polarbearscience.com/2012/08/03/the-conundrum-of-cold-winter-effects-in-hudson-bay/https://polarbearscience.com/wp-content/uploads/2012/08/stirling-et-al-2004-fig-3_sm_marked.jpgStirling et al 2004 fig 3_sm_markedSouthwestern Hudson Bay breakup dates for 1971-2001 used in Stirling et al. 2004. "Area 5" (the filled dots) overlaps with the Chambellant et al. 2012 study area around Churchill (others are further south). Top red line indicates the latest breakup date recorded (July 31), lower line is approximately July 21 (latest breakup date recorded in the Chambellant et al. study). Note that 2009 almost certainly had a later breakup date than any of these, see text. https://polarbearscience.com/wp-content/uploads/2012/08/chambellant-et-al-2012-breakup-graph_marked.jpgChambellant et al 2012 breakup graph_markedGraph of western Hudson Bay breakup dates used for ringed seal study by Chambellant et al. (2012:274). Note that this graph uses Julian calendar dates, so the latest breakup date shown (1992, above the red line) was July 21, 25 days later than the 1990-2007 average (Julian day 177). Breakup for the year 2000 (marked by red line) was apparently not as late in this region (July 13) as it was in southwestern Hudson Bay (see next graph), but it was still later than 1991. Note that 2009 almost certainly had a late breakup date as well, see text for details.https://polarbearscience.com/wp-content/uploads/2012/08/stirling-and-lunn-1997-map-sm.jpgStirling and Lunn 1997 map smMap showing the western Hudson Bay region and the eastern Beaufort Sea, Canada. From Stirling and Lunn 1997:168.https://polarbearscience.com/wp-content/uploads/2012/08/sea-ice-beaufort-1972-77-winter-to-summer-marked-sm.jpgSea ice Beaufort 1972-77 winter to summer marked smHere is what offshore sea ice looked like in the Beaufort Sea in winter and spring from 1972-1977. This graph shows development of ice by week from Jan. 1 of each year (ringed seals give birth beginning early April in this region) through July 16. The especially cold 1973-74 season is highlighted, when heavy ice impeded ringed seal pupping/breeding in the shorefast ice. Graph generated from Canadian Ice Service data (average is 1981-2010).https://polarbearscience.com/wp-content/uploads/2012/08/stirling-2002_fig-5-cropped.jpgStirling 2002_fig 5 croppedFigure from Stirling's 2002 paper. Note that "ovulation rate" and "natality" are measures used to assess reproductive success in ringed seals and polar bears, respectively. In effect, what it shows is that during cold, heavy ice winters (1973-74 and 1984-85), the numbers of probably-pregnant seals declined and as a consequence, overall polar bear reproduction declined. These two cold events are the only ones with reasonably good data on both ringed seals and polar bears.2015-04-21T03:47:47+00:00monthlyhttps://polarbearscience.com/2015/04/18/polar-bear-encounter-in-the-canadian-high-arctic-reminiscent-of-recent-attacks/https://polarbearscience.com/wp-content/uploads/2015/04/haig-thomas-expedition-map_telegraph_april-18-2015.jpgHaig-Thomas expedition map_Telegraph_April 18 20152015-04-18T15:57:23+00:00monthlyhttps://polarbearscience.com/2015/04/16/spring-ice-alarm-deflated-2015-ice-now-as-high-as-2014-davis-strait-highest-since-1971/https://polarbearscience.com/wp-content/uploads/2015/04/barents-sea-ice-2015-april-16_nis.pngBarents Sea ice 2015 April 16_NISFigure 4. Barents Sea ice (Norwegian Ice Service, <a href="http://polarview.met.no/regs/barents_20150416.png" target="_blank">16 April 2015</a>) is lower than average in 2015 for this date and lower than the last few years (see “Icechart Archive”). However, there appears to have been enough ice over the last few weeks for females that spent the winter in land-based dens to get their new cubs out onto the ice and begin hunting. Once they are on the ice, they can travel with it as it moves.https://polarbearscience.com/wp-content/uploads/2015/04/east-newfoundland-same-week-april-16_1969-to-2015.pngEast Newfoundland same week April 16_1969 to 2015Figure 3. Eastern Newfoundland ice cover from1969 to 2015 for the week of 16 April: 2015 had the third highest extent on record for this week, well above the long-term average. This region (see red inset map, upper left) is the largest pupping grounds for harp seals, which has been <a href="https://polarbearscience.com/2013/06/10/signs-that-davis-strait-polar-bears-are-at-carrying-capacity/" target="_blank">good news for southern Davis Strait polar bears,</a> one of the most southern subpopulation segments.https://polarbearscience.com/wp-content/uploads/2015/04/davis-strait-same-week-april-16-1971-2015-cis.pngDavis Strait same week April 16 1971-2015 CISFigure 2. Davis Strait ice cover from1971 to 2015 for the week of 16 April: 2015 had the highest extent on record for this week, well above the long-term average.https://polarbearscience.com/wp-content/uploads/2015/04/sea-ice-extent-2015-april-15-_14_1mkm2_vs-2006-and-2014.jpgSea ice extent 2015 April 15 _14_1mkm2_vs 2006 and 2014Figure 1. From <a href="http://nsidc.org/arcticseaicenews/charctic-interactive-sea-ice-graph/" target="_blank">NSIDC</a>, 2015 sea ice extent (dark blue, 14.1mkm2) compared to 2006 and 2014 at April 15 (latest date available). https://polarbearscience.com/wp-content/uploads/2015/04/harp-seal-pup_dfo-newfoundland.jpgHarp seal pup_DFO Newfoundland2015-04-16T21:02:44+00:00monthlyhttps://polarbearscience.com/2015/04/14/polar-bear-habitat-update-highly-concentrated-ice-in-eastern-hudson-bay-this-spring/https://polarbearscience.com/wp-content/uploads/2015/04/sea-ice-concentration-2004-and-2015-at-april-2_cryospheretoday_see-hb.pngSea ice concentration 2004 and 2015 at April 2_CryosphereToday_see HBhttps://polarbearscience.com/wp-content/uploads/2015/04/sea-ice-concentration-1999-and-2015-at-april-2_cryospheretoday_see-hb.pngSea ice concentration 1999 and 2015 at April 2_CryosphereToday_see HBhttps://polarbearscience.com/wp-content/uploads/2015/04/sea-ice-concentration-1992-and-2015-at-april-2_cryospheretoday_see-hb.pngSea ice concentration 1992 and 2015 at April 2_CryosphereToday_see HBhttps://polarbearscience.com/wp-content/uploads/2015/04/sea-ice-extent-canada-2014-april-11_cis.gifSea ice extent Canada 2014 April 11_CIShttps://polarbearscience.com/wp-content/uploads/2015/04/sea-ice-extent-canada-2015-april-11-cis.gifSea ice extent Canada 2015 April 11 CIS2015-04-14T18:20:23+00:00monthlyhttps://polarbearscience.com/2013/01/06/polar-bears-in-winter-insights-from-behouden-huys-1596-1597/https://polarbearscience.com/wp-content/uploads/2013/01/arctic-days-and-nights-modified_behouden-huys-2.jpgArctic days and nights modified_Behouden Huys 2Figure 3. Daylight variation in the Arctic near 80⁰N (magenta circle). Behouden Huys, the over-winter home of Barents and his crew in 1596-97 on Novaya Zemlya was located at 76⁰ 12’N. It had a “winter’s night” of 2 months (early November-early February) – half as long as that experienced at Alert and twice as long as MurmanskModified from a <a href="http://www.grida.no/polar/ipy/2840.aspx" target="_blank">poster by Hugo Ahlenius</a>, UNEP/GRID-Arendal 2008. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2013/01/polar_bear_gerrit_de_veer_1596_wikipedia.jpgPolar_bear_Gerrit_de_Veer_1596_wikipediaFigure 2. An engraving from De Veer’s journal conveys the struggle the crew faced in warding off polar bears during their winter stay at Novaya Zemlya. The bears not only stalked and attacked the crew - they got into the food stores on the ship (From Wikipedia).https://polarbearscience.com/wp-content/uploads/2013/01/barents_sea_maps-zeeberg-wiki-composite.jpgBarents_Sea_maps Zeeberg wiki compositeFigure 1. Location of Novaya Zemlya, in the Barents Sea. On the map at left (a), the black square marks the location of <em>Behouden Huys</em>, the over-winter home of William Barents and his crew (1596-97) on Novaya Zemlya (the “track of boats” noted marks the return journey of Barents in the summer of 1597). This is modified from Zeeberg et al. 2002:331. The map on the right is from Wikipedia, for perspective. click to enlarge.https://polarbearscience.com/wp-content/uploads/2013/01/polar-bear-aurora_borealis_3-t2-free.jpgpolar bear aurora_borealis_3-t2 free2015-04-12T22:55:25+00:00monthlyhttps://polarbearscience.com/2015/04/12/challenging-polar-bear-fearmongering-about-arctic-sea-ice-extent-for-march-2015/https://polarbearscience.com/wp-content/uploads/2015/04/arctic-sea-ice-extent-march-greater-than-pb-habitat_april-12-20151.jpgArctic Sea ice extent March greater than PB habitat_April 12 2015https://polarbearscience.com/wp-content/uploads/2015/04/derocher-tweet-2015-april-7-claims-march-ice-is-polar-bear-habitat.jpgDerocher tweet 2015 April 7 claims March ice is polar bear habitathttps://polarbearscience.com/wp-content/uploads/2015/04/derocher-tweet-2015-april-10_re-march-seaice-and-pb-habitat.jpgDerocher tweet 2015 April 10_re March seaice and PB habitat2015-04-12T06:40:00+00:00monthlyhttps://polarbearscience.com/2015/04/09/arctic-sea-ice-extent-total-for-march-does-not-equal-global-polar-bear-habitat/https://polarbearscience.com/wp-content/uploads/2015/04/2015-march.png2015 Marchhttps://polarbearscience.com/wp-content/uploads/2015/04/masie_all_r14_v01_2012091_4km.pngmasie_all_r14_v01_2012091_4kmhttps://polarbearscience.com/wp-content/uploads/2015/04/masie_all_r14_v01_2006090_4km.pngmasie_all_r14_v01_2006090_4kmhttps://polarbearscience.com/wp-content/uploads/2015/04/sea-of-okhotsk_1979-and-2015-march-with-ice-cover-estimates_polarbearscience_april-8.jpgSea of Okhotsk_1979 and 2015 March with ice cover estimates_PolarBearScience_April 8Figure 3. Comparing sea ice extent over the Sea of Okhotsk and northern Sea of Japan for 1979 and 2015 (extents approximate). https://polarbearscience.com/wp-content/uploads/2015/04/sea-ice-2006-vs-2015_nsidc-compare_bist.jpgSea ice 2006 vs 2015_NSIDC compare_BISTFigure 2. Arctic sea ice extent and concentration for 2015 and 2006 compared, courtesy <a href="http://nsidc.org/cgi-bin/bist/bist.pl?annot=1&legend=1&scale=100&tab_cols=2&tab_rows=2&config=seaice_index&submit=Refresh&mo0=03&hemis0=N&img0=extn&mo1=03&hemis1=N&img1=conc&year0=2015&year1=2006" target="_blank">NSIDC</a>. Note that there was less ice in the Sea of Okhotsk in 2015 than in 2006, where MASIE archives show ice covered 0.59 mkm2. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/04/sea-ice-extent-march-average-1979-to-2015-april-7-nsidc_graph.pngSea ice extent March average 1979 to 2015 April 7 NSIDC_graphFigure 1. Average monthly Arctic sea ice extent for March 1979-2015, which includes ice in the Sea of Okhotsk and the Sea of Japan, a decline of 2.6% per decade. NSIDC, <a href="http://nsidc.org/arcticseaicenews/2015/04/a-double-dip/" target="_blank">March summary 2015</a>. https://polarbearscience.com/wp-content/uploads/2015/04/sea-of-okhotsk_1979-march-marked_polarbearscience.jpgSea of Okhotsk_1979 March marked_PolarBearScience2015-04-09T23:59:46+00:00monthlyhttps://polarbearscience.com/2015/04/07/tracking-polar-bears-in-the-beaufort-sea-march-2015-map/https://polarbearscience.com/wp-content/uploads/2015/04/beaufort-tracking-usgs-bear-movements-march-2015-lg.jpgBeaufort tracking USGS bear-movements-March 2015 lgFigure 1. From original caption: “Movements of 8 satellite-tagged polar bears for the month of March, 2015. Polar bears were tagged in 2014 on the spring-time sea ice of the southern Beaufort Sea. All eight of these bears have satellite collar transmitters.” Ice map for 30 March, 2015. Original <a href="http://alaska.usgs.gov/science/biology/polar_bears/images/bear-movements-March-2015.jpg" target="_blank">here</a>. https://polarbearscience.com/wp-content/uploads/2015/04/putting_collar_on_polar_bear_slider_usgs.jpgputting_collar_on_polar_bear_slider_USGS2015-04-08T00:44:46+00:00monthlyhttps://polarbearscience.com/2015/02/27/international-polar-bear-day-polar-bears-in-the-news-this-week/https://polarbearscience.com/wp-content/uploads/2015/02/rimouski_st-lawrence-polar-bear-location-feb-2015.jpgRimouski_St Lawrence polar bear location Feb 2015https://polarbearscience.com/wp-content/uploads/2015/02/polar_bear_in-fall_usfws-nov-10-2010_cropped.jpgPolar_Bear_in fall_USFWS Nov 10 2010_croppedhttps://polarbearscience.com/wp-content/uploads/2015/02/sea-ice-extent-2015-feb-25-nsidc1.pngSea ice extent 2015 Feb 25 NSIDCSea ice extent 2015 Feb 25 NSIDChttps://polarbearscience.com/wp-content/uploads/2015/02/sea-ice-extent-2015-feb-24-nsidc.pngSea ice extent 2015 Feb 24 NSIDC2015-04-07T18:59:04+00:00monthlyhttps://polarbearscience.com/2015/04/03/superb-sea-ice-conditions-for-polar-bears-worldwide-during-their-critical-feeding-period/https://polarbearscience.com/wp-content/uploads/2015/04/1979-march-average.jpg1979 March averagehttps://polarbearscience.com/wp-content/uploads/2015/04/sea-ice-extent-2015-april-2-nsidc.pngSea ice extent 2015 April 2 NSIDChttps://polarbearscience.com/wp-content/uploads/2015/04/hudson-bay-2015-same-week-at-april-2_1971-2015_cis.jpgHudson Bay 2015 same week at April 2_1971-2015_CIShttps://polarbearscience.com/wp-content/uploads/2015/04/east-newfoundland-same-week-april-2_1969-to-2015.pngEast Newfoundland same week April 2_1969 to 2015https://polarbearscience.com/wp-content/uploads/2015/04/labrador-south-same-week-april-2-1969_2015-with-average.pngLabrador south same week April 2 1969_2015 with averagehttps://polarbearscience.com/wp-content/uploads/2015/04/davis-strait-same-week-april-2-1971-2015-cis.pngDavis Strait same week April 2 1971-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/04/regional-east-coast-week-of-april-2-1968-2015-cis.pngRegional East Coast week of April 2 1968-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/04/sea-ice-extent-canada-2015-april-2-cis.gifSea ice extent Canada 2015 April 2 CIShttps://polarbearscience.com/wp-content/uploads/2015/04/sea-ice-extent-global-2015-april-2-nsidc-with-anomaly-wuwt.pngSea ice extent global 2015 April 2 NSIDC with anomaly WUWT2015-04-03T20:14:34+00:00monthlyhttps://polarbearscience.com/2015/02/09/polar-bears-out-on-the-sea-ice-eat-few-seals-in-summer-and-early-fall/https://polarbearscience.com/wp-content/uploads/2015/02/devon_island_canada_wikipedia1.pngDevon_Island,_Canada_wikipediaFigure 1. Devon Island in the central Canadian Arctic, adjacent to Barrow Strait, where Ian Stirling observed polar bears from a tower during the summer of 1973 (24 July to 8 August). Wikipedia map.https://polarbearscience.com/wp-content/uploads/2015/02/stirling-and-oritsland1995_polarbear_vs_ringedseal_table-2-kills-per-month-copy.jpgStirling and Oritsland1995_PolarBear_vs_RingedSeal_Table 2 kills per month copyFigure 2. This is Table 2 from Stirling and Øritsland (1995), showing their estimation of the number of ringed seals killed by polar bears each month in the central Canadian Arctic in the 1970s. Note that numbers of seal kills for winter months are assumptions (no data available) and that bears are assumed to spend the summer months (August, September) onshore fasting (although some bears spent that time on the pack ice, as did the bears in Stirling’s 1973 study).https://polarbearscience.com/wp-content/uploads/2015/02/img_4960_usgs_sm.jpgPolar Bear Breaks Ice2015-04-02T21:30:31+00:00monthlyhttps://polarbearscience.com/2015/01/12/if-summer-ice-was-critical-for-s-beaufort-polar-bears-2012-would-have-decimated-them/https://polarbearscience.com/wp-content/uploads/2015/01/1979-sea-ice-extent-sept-average_nisdc.jpg1979 sea ice extent Sept average_NISDCFigure 5. Note that there was as far offshore of the coast of Alaska (the Southern Beaufort Sea) in 1979 as it was in the early 2000shttps://polarbearscience.com/wp-content/uploads/2015/01/sea-ice-extent-2007-season-by-season-southern-beaufort.jpgSea ice extent 2007 season by season Southern Beauforthttps://polarbearscience.com/wp-content/uploads/2015/01/sea-ice-extent-2012-season-by-season-southern-beaufort.jpgSea ice extent 2012 season by season Southern Beauforthttps://polarbearscience.com/wp-content/uploads/2015/01/sea-ice-extent-2002-2007-comparison-southern-beaufort.jpgSea ice extent 2002-2007 comparison Southern Beauforthttps://polarbearscience.com/wp-content/uploads/2015/01/sea-ice-extent-2012-vs-2007-comparison-southern-beaufort.jpgSea ice extent 2012 vs 2007 comparison Southern Beauforthttps://polarbearscience.com/wp-content/uploads/2015/01/sea-ice-extent-2012-southern-beaufort_polarbearscience.jpgSea ice extent 2012 Southern Beaufort_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2014/03/beaufort-sea-pressure-ridges_spring-1949-wikipedia-sm.jpgBeaufort Sea pressure ridges_Spring 1949 wikipedia sm2015-04-02T19:18:58+00:00monthlyhttps://polarbearscience.com/2014/12/17/recent-s-beaufort-polar-bear-count-was-a-cherry-picked-result-new-evidence/https://polarbearscience.com/wp-content/uploads/2014/12/amstrup-w-triplet_prudhoe-bay-2005_usgs_sm.jpgAmstrup w triplet_Prudhoe Bay 2005_USGS_smhttps://polarbearscience.com/wp-content/uploads/2014/12/rode-et-al-2014-in-press-collars_fig1.jpgRode et al 2014 in press collars_Fig1Figure 1 from new-released paper by Rode and colleagues, in Wildlife Research.2015-04-02T18:52:25+00:00monthlyhttps://polarbearscience.com/2014/12/18/polar-bear-biologists-miss-the-mark-in-new-study-on-invasive-mark-recapture-effects/https://polarbearscience.com/wp-content/uploads/2014/12/rode-et-al-2014-in-press-collars_table5.jpgRode et al 2014 in press collars_Table5https://polarbearscience.com/wp-content/uploads/2014/12/rode-et-al-2014-in-press-collars_fig3.jpgRode et al 2014 in press collars_Fig3https://polarbearscience.com/wp-content/uploads/2014/12/photo-by-jake-steven-arnatsiaq-2012.jpgPhoto by Jake Steven Arnatsiaq 2012 Photo by <a href="https://www.facebook.com/jake.arnatsiaq" target="_blank">Jake Steven Arnatsiaq</a>. Original <a href="https://fbcdn-sphotos-a-a.akamaihd.net/hphotos-ak-ash3/t1/644739_219952058149619_212461684_n.jpg" target="_blank">here</a>. 2015-04-02T18:50:31+00:00monthlyhttps://polarbearscience.com/2015/04/01/polar-bear-consumption-of-terrestrial-foods-new-paper-misses-the-point/https://polarbearscience.com/wp-content/uploads/2015/03/rode-et-al-2015-in-press-cover.jpgRode et al 2015 in press coverhttps://polarbearscience.com/wp-content/uploads/2015/03/polar-bear-cubs-barnacle-geese-spitzbergen_prop-photo.jpgPolar bear cubs barnacle geese Spitzbergen_Prop photo“Young polar bears raid the nesting grounds of barnacle geese, searching for eggs and newly hatched goslings in the Nordenskiöldkysten region of Spitsbergen, Norway.” Jouke Prop photo. https://polarbearscience.com/wp-content/uploads/2015/03/polar_bear_susi_miller-usfws.jpgpolar_bear_susi_miller USFWSFat bears on land in the Southern Beaufort, Sue Miller photo, well-prepared for a brief summer fast.2015-04-01T18:17:32+00:00monthlyhttps://polarbearscience.com/2015/03/24/polar-bear-visiting-hibernia-oil-platform-off-newfoundland-was-not-far-from-sea-ice/https://polarbearscience.com/wp-content/uploads/2015/03/stirling-cbc-quote-about-hibernia-bear-march-25-2015.jpgStirling CBC quote about Hibernia bear March 25 2015Sidebar Stirling quote enlarged in March 25, 2015 CBC article.https://polarbearscience.com/wp-content/uploads/2015/03/hibernia-swimming-polar-bear_23-march-2015.jpgHibernia swimming polar bear_23 March 2015Original CBC caption: "This polar bear was photographed from the Atlantic Merlin offshore supply vessel early Monday morning. It later attempted to climb onto the Hibernia gravity base structure. "https://polarbearscience.com/wp-content/uploads/2015/03/hibernia-platform-and-sea-ice-at-23-march-2015_polarbearscience.jpgHibernia platform and sea ice at 23 March 2015_Polarbearscience2015-03-28T14:21:06+00:00monthlyhttps://polarbearscience.com/2015/03/26/polar-bear-habitat-update-even-more-ice-this-week-in-the-barents-sea/https://polarbearscience.com/wp-content/uploads/2015/03/sea-ic-extent-2015-vs-2014-and-2011-march-26_nsidc-interactive.jpgSea ic extent 2015 vs 2014 and 2011 March 26_NSIDC interactivehttps://polarbearscience.com/wp-content/uploads/2015/03/derocher-et-al-2011-fig-3-hopen-island-sea-ice.jpgDerocher et al 2011 Fig 3 Hopen island sea iceFigure 3 from Derocher et al. 2011. Showing yearly variation in sea ice coverage around Hopen Island, Svalbard.https://polarbearscience.com/wp-content/uploads/2015/03/svalbard-ice-cover_10-dec-2014-hopen-island.jpgSvalbard ice cover_10 Dec 2014 Hopen Islandhttps://polarbearscience.com/wp-content/uploads/2015/03/1985-march-average.jpg1985 March averagehttps://polarbearscience.com/wp-content/uploads/2015/03/barents-sea-ice-coverage-march-18-vs-26_2015_polarbearscience.jpgBarents Sea ice coverage March 18 vs 26_2015_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2015/03/sea-ice-extent-2015-mar-25-nsidc.pngSea ice extent 2015 Mar 25 NSIDChttps://polarbearscience.com/wp-content/uploads/2015/03/davis-strait-same-week-march-26-1971-2015-cis.pngDavis Strait same week March 26 1971-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/03/regional-east-coast-week-of-march-26-1968-2015-cis.pngRegional East Coast week of March 26 1968-2015 CIShttps://polarbearscience.com/wp-content/uploads/2015/03/sea-ice-extent-canada-2015-march-26-cis.gifSea ice extent Canada 2015 March 26 CIShttps://polarbearscience.com/wp-content/uploads/2015/03/img_4960_usgs_sm.jpgPolar Bear Breaks Ice2015-03-26T21:48:15+00:00monthlyhttps://polarbearscience.com/2014/11/19/polar-bear-researchers-knew-s-beaufort-population-continued-to-increase-up-to-2012/https://polarbearscience.com/wp-content/uploads/2014/11/usfws-2013-2014-pb-news_cover_polarbearscience.jpgUSFWS 2013-2014 PB News_cover_PolarBearScience2015-03-26T15:20:45+00:00monthlyhttps://polarbearscience.com/2014/11/18/s-beaufort-polar-bears-largely-recovered-from-known-2004-2006-decline-says-new-study/https://polarbearscience.com/wp-content/uploads/2014/11/bromighan-et-al-2014-in-press-fig-2.jpgBromighan et al 2014 in press fig 2 Figure 3. Bromaghin et al. 2014 in press, FIG. 2. Anomalies (difference from the mean) of the two sea ice covariates from 1979 to 2010. Normalized values from 2001 to 2010 (dark grey) were used to model polar bear survival probabilities; (a) Summer-habitat, and (b) Melt-season. [“Summer-habitat” is area of optimal polar bear habitat, July-October; “Melt-season” is the time between melt and refreeze each summer]. The study found no correlation between population size and sea ice coverage.https://polarbearscience.com/wp-content/uploads/2014/11/bromighan-et-al-2014-in-press-fig-5-abundance.jpgBromighan et al 2014 in press fig 5 abundanceFigure 2. Bromaghin et al. 2014 in press, FIG. 5. Model-averaged estimates of abundance based on (a) the USGS data set [USA half of SBS only] and (b) the USCA data set [Canadian half of SBS only]. Error bars represent 90% bias-corrected confidence intervals based on 100 bootstrap samples. Prior estimates (Regehr et al. 2006) are shown for comparative purposes (b, open diamonds). This reminds me of the 2011 Northern Beaufort Sea population estimate graph discussed <a href="https://polarbearscience.com/2013/07/02/did-polar-bear-numbers-in-e-beaufort-fluctuate-each-decade-due-to-thick-ice-years/" target="_blank">here</a>, about which eminent ecologist <a href="http://www.danbotkin.com" target="_blank">Dr. Daniel Botkin</a> remarked: “<em>The confidence intervals are so large that nothing can be concluded.</em>” https://polarbearscience.com/wp-content/uploads/2014/11/bromighan-et-al-2014-in-press-fig-1.jpgBromighan et al 2014 in press fig 1Figure 1. This is Fig. 1 from Bromaghin et al. 2014 in press, showing the study area. Note about half of the Southern Beaufort Sea subpopulation is in the USA and the other half is in Canada. Canada has <a href="https://polarbearscience.com/2014/10/27/beaufort-sea-polar-bear-subpopulation-boundary-has-been-changed/" target="_blank">recently moved the eastern boundary</a> to ~ Tuktoyaktuk. 2015-03-26T15:01:03+00:00monthlyhttps://polarbearscience.com/2015/03/24/hypocrisy-of-arctic-biologists-fossil-fuels-for-me-but-not-for-thee/https://polarbearscience.com/wp-content/uploads/2015/03/arctic-science-journeys-2002-walrus-tagging-from-boat.jpgArctic Science Journeys 2002 walrus tagging from boatPacific walrus tagging from a small boat. UAF Seagrant News 2002.https://polarbearscience.com/wp-content/uploads/2015/03/polar_bear_biologist_usfws_working_with_a_bear_oct-24-2001-amstrup-photo.jpgPolar_Bear_Biologist_USFWS_working_with_a_Bear_Oct 24 2001 Amstrup photo2015-03-24T13:41:16+00:00monthlyhttps://polarbearscience.com/2015/03/17/supporting-document-for-canadas-polar-bear-status-maps-reveal-surprises/https://polarbearscience.com/wp-content/uploads/2015/03/2014-pbtc-status-table_polarbearscience-extracted-marked.jpg2014 PBTC Status Table_PolarBearScience extracted markedhttps://polarbearscience.com/wp-content/uploads/2015/03/2014-pbtc-status-table_polarbearscience-extracted.jpg2014 PBTC Status Table_PolarBearScience extracted2015-03-22T22:35:43+00:00monthlyhttps://polarbearscience.com/2015/03/20/polar-bear-habitat-update-more-spring-sea-ice-around-svalbard-than-2014-2012/https://polarbearscience.com/wp-content/uploads/2015/03/sea-ice-march-17-2006-vs-2015-cryosphere-today.jpgSea ice March 17 2006 vs 2015 Cryosphere Todayhttps://polarbearscience.com/wp-content/uploads/2015/03/cover_photopolarbear_usgs_alaska1.jpgcover_photoPOLARBEAR_USGS_ALASKAFigure 6. USGS photo of a female with new cubs on the ice, in Alaska.https://polarbearscience.com/wp-content/uploads/2015/03/barents-sea-ice-2015-2010-march-18_19.jpgBarents Sea ice 2015-2010 March 18_19Figure 5. Sea ice concentration maps for 18th or 19th of March, 2015-2010. Norwegian Ice Service.https://polarbearscience.com/wp-content/uploads/2015/03/davis-strait-same-week-march-19-1971-2015-cis.pngDavis Strait same week March 19 1971-2015 CISFigure 4. Sea ice cover over (northern) Davis Strait, Canada, for the week March 19, 1971-2015https://polarbearscience.com/wp-content/uploads/2015/03/regional-east-coast-week-of-march-19-1968-2015-cis.pngRegional East Coast week of March 19 1968-2015 CISFigure 3. Sea ice cover over the east coast of Canada for the week March 19, 1969-2015. CIS.https://polarbearscience.com/wp-content/uploads/2015/03/sea-ice-extent-2015-mar-18-nsidc.pngSea ice extent 2015 Mar 18 NSIDCFigure 2. Sea ice extent at 18 March 2015. NSIDC.https://polarbearscience.com/wp-content/uploads/2015/03/sea-ice-extent-canada-2015-march-19-cis.gifSea ice extent Canada 2015 March 19 CISFigure 1. Sea ice concentration in Canada at 19 March 2015. Canadian Ice Services.https://polarbearscience.com/wp-content/uploads/2015/03/polar_bear_male_regehr-photo_march-21-2010_labeled.jpgPolar_Bear_male_Regehr photo_March 21 2010_labeled2015-03-21T02:09:11+00:00monthlyhttps://polarbearscience.com/2014/03/10/barents-sea-polar-bear-condition-varies-with-amo-and-spring-sea-ice-conditions/https://polarbearscience.com/wp-content/uploads/2014/03/sea-ice-extent-2014-end-feb-nsidc.pngSea ice extent 2014 end Feb NSIDCFigure 5. Sea ice extent for the month of February, 2014, that accompanied the monthly sea ice update by NSIDC.https://polarbearscience.com/wp-content/uploads/2014/03/map-barentssea.jpgmap-BarentsSeaFigure 1. The Barents Sea polar bear subpopulation, courtesy the IUCN Polar Bear Specialist Group. "Svalbard" is the largest archipelago, in the eastern portion.https://polarbearscience.com/wp-content/uploads/2014/03/miles-et-al-2014-sea-ice_amo_fig-2a-and-e.jpgMiles et al 2014 sea ice_AMO_Fig 2a and eFigure 3. This is fig. 2 from Miles et al. 2014, showing only the short-term instrument portion of the AMO record and the extended record going back 400 years.https://polarbearscience.com/wp-content/uploads/2014/03/aars-and-andersen-barents-sea-1993-2013-mosj-isbj-females-with-cubs.pngAars and Andersen Barents Sea 1993-2013 MOSJ-isbj-females-with-cubsFig. 2 From Aars and Andersen: “Proportion of females with cubs of the year - COYs (upper panel) and yearlings (lower panel), based on data from the annual capture-recapture program 1993-2013."https://polarbearscience.com/wp-content/uploads/2014/03/barents-sea-masie-2014-march-8-labeled_sm.jpgBarents Sea MASIE 2014 March 8 labeled_SmFig. 1. NSIDC sea ice extent at March 8, 2014 (a "MASIE" product), with labels added. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2014/03/masie_2014-march-8_eastern-sector.jpgmasie_2014 March 8_Eastern sectorFig. 1. NSIDC sea ice extent at March 8, 2014 (a "MASIE" product).2015-03-20T14:26:47+00:00monthlyhttps://polarbearscience.com/2015/03/16/no-evidence-of-actual-damage-to-polar-bear-brains-from-environmental-contaminants/https://polarbearscience.com/wp-content/uploads/2015/03/polar-bear-looking-brain-damaged-runedietz-photo-science-nordic.jpgPolar bear looking brain damaged RuneDietz photo Science Nordic2015-03-16T23:39:53+00:00monthlyhttps://polarbearscience.com/2015/03/15/tracking-polar-bears-in-the-beaufort-sea-february-2015-map/https://polarbearscience.com/wp-content/uploads/2015/03/beaufort-tracking-usgs-bear-movements-february-2015-lg.jpgBeaufort tracking USGS bear-movements-February 2015 lgMovements of 7 satellite-tagged polar bears for the month of February, 2015. Polar bears were tagged in 2014 on the spring-time sea ice of the southern Beaufort Sea. All seven of these bears have satellite collar transmitters. The teal-green track was not present in January. Polar bear satellite telemetry data are shown with AMSR2 remotely-sensed ice coverage for 28 February, 2015. https://polarbearscience.com/wp-content/uploads/2015/03/polar_bear-with-collar_usgs.gifpolar_bear with collar_USGS2015-03-15T19:03:24+00:00monthlyhttps://polarbearscience.com/2015/03/13/polarbearscience-has-been-carbon-briefed-success-at-last/https://polarbearscience.com/wp-content/uploads/2015/03/pidcock-tweet-on-polar-bears-at-5-march-2015-6_20pm-pacific.jpgPidcock tweet on polar bears at 5 March 2015 6_20PM Pacifichttps://polarbearscience.com/wp-content/uploads/2015/03/hitchens_mail-on-sunday_march-1-2015_pb-bit-cropped.jpgHitchens_Mail on Sunday_March 1 2015_PB bit croppedFrom the Mail on Sunday, Peter Hitchens comment (March 1 2015).https://polarbearscience.com/wp-content/uploads/2015/03/screenshot-2015-03-04-144214_the-times-print-version.pngscreenshot-2015-03-04-144214_The Times print versionFebruary 27, 2015https://polarbearscience.com/wp-content/uploads/2015/03/screenshot-2015-03-04-154610_575x539-iucn-map.pngscreenshot-2015-03-04-154610_575x539 IUCN mapReplacement caption: "Polar bear subpopulations across the Arctic. Source: IUCN/PBSG." https://polarbearscience.com/wp-content/uploads/2015/03/distribution-and-current-trend-of-polar-bear-subpopulations-throughout-the-circumpolar-arctic_1004.jpgdistribution-and-current-trend-of-polar-bear-subpopulations-throughout-the-circumpolar-arctic_1004Original map with caption: Polar bear subpopulations across the Arctic. Source: CAFF. 2010. Arctic Biodiversity Trends: Selected indicators of change2015-03-13T19:00:09+00:00monthlyhttps://polarbearscience.com/2015/03/12/on-being-a-polar-bear-expert-among-other-things/https://polarbearscience.com/wp-content/uploads/2015/03/ab_p-h-_p-l-vsp-v-fem06.jpgAB_P.h._P.l.vsP.v.fem06Looking down on the tops of femurs (thigh bone) from (L to R) young individuals of: Ringed seal, spotted seal, harbour seal and bearded seal.https://polarbearscience.com/wp-content/uploads/2015/03/blinders_horses_2_wikipedia_sm.jpgBlinders_Horses_2_Wikipedia_smBlinders over the eyes prevent the horse from looking backwards. Original image here, courtesy Wikipediahttps://polarbearscience.com/wp-content/uploads/2015/03/ab_ursus_upperm1_700133_017.jpgAB_Ursus_upperM1_700133_017Extremely worn bear molar recovered from a 2500-3500 year old archaeological site in the Eastern Aleutians, located near the port of Dutch Harbor on Unalaska Island. This specimen was identified, via DNA, as brown bear – a species that does not live on the island today. https://polarbearscience.com/wp-content/uploads/2015/03/pariet_009-copy.jpgpariet_009 copyThe same skull bone in two closely related but distinct species of flounder.https://polarbearscience.com/wp-content/uploads/2015/03/n0083_scaps.jpgN0083_scapsPelvic bones and shoulder blades from large carnivores, University of Victoria skeletal collection.https://polarbearscience.com/wp-content/uploads/2015/03/shuekh_puppy.jpgShuekh_puppyhttps://polarbearscience.com/wp-content/uploads/2015/03/polar-bears-stanley-park-zoo_crockford-1970s_web.jpgPolar bears Stanley park zoo_Crockford 1970s_web2015-03-12T07:11:26+00:00monthlyhttps://polarbearscience.com/2015/03/01/iucn-specialist-group-quietly-adds-sea-ice-changes-to-their-polar-bear-status-table/https://polarbearscience.com/wp-content/uploads/2015/03/nsidc-on-using-a-30-yr-average_1-march-2015.jpgNSIDC on using a 30 yr average_1 March 2015https://polarbearscience.com/wp-content/uploads/2015/03/2015-jan-24-pbsg-sea-ice-metrics-example2_top-snip.jpg2015 Jan 24 PBSG sea ice metrics example2_top sniphttps://polarbearscience.com/wp-content/uploads/2015/03/2015-jan-24-pbsg-sea-ice-metrics-example2-bottom-snip.jpg2015 Jan 24 PBSG sea ice metrics example2 bottom sniphttps://polarbearscience.com/wp-content/uploads/2015/03/2015-jan-24-pbsg-sea-ice-change-definitions_snip.jpg2015 Jan 24 PBSG sea ice change definitions_sniphttps://polarbearscience.com/wp-content/uploads/2015/03/2015-feb-27_pbsg-news_no-mention-of-status-changes.jpg2015 Feb 27_PBSG NEWS_no mention of status changes2015-03-02T01:55:36+00:00monthlyhttps://polarbearscience.com/2015/02/26/a-harrowing-encounter-my-published-review-of-meltdown/https://polarbearscience.com/wp-content/uploads/2015/02/polarbear-vs-dogs_lger_norbert-rosing-photo-2008_brian-ladoon-dogs-whb.jpgPolarbear vs dogs_lger_Norbert Rosing photo 2008_Brian Ladoon dogs WHBhttps://polarbearscience.com/wp-content/uploads/2015/02/harrowing-encounter_2015-title.jpgHarrowing encounter_2015 title2015-02-26T04:58:21+00:00monthlyhttps://polarbearscience.com/2015/02/24/head-of-ipcc-resigns-in-disgrace-says-protection-of-species-is-my-religion/https://polarbearscience.com/wp-content/uploads/2015/02/pachauri-quote_resignation-letter-24feb20152.jpgPachauri quote_resignation letter 24Feb2015https://polarbearscience.com/wp-content/uploads/2015/02/polar-bear-standing-atop-008-corner-dec-13-2012.jpgPolar bear standing atop floating iceberg2015-02-24T18:30:16+00:00monthlyhttps://polarbearscience.com/2015/02/19/twenty-good-reasons-not-to-worry-about-polar-bears/https://polarbearscience.com/wp-content/uploads/2015/02/ak-pb-n-shore-usfws-barrow_labeled.jpgAK PB N Shore-USFWS Barrow_labeledhttps://polarbearscience.com/wp-content/uploads/2015/02/rode-and-regehr-2010_chukchi_report2010_fig1_triplets_labelled_cropped.jpgRode and Regehr 2010_Chukchi_report2010_Fig1_triplets_labelled_cropped Figure 3. One of the 14 Chukchi Sea polar bear females captured between 2008 and 2011 had triplet cubs – a phenomenon <a href="https://polarbearscience.com/2012/09/26/western-hudson-bay-polar-bears-are-not-like-the-others-part-1/" target="_blank">rarely seen outside Western Hudson Bay</a>. All three of her cubs (pictured above) had survived their first year, an astonishing achievement in any region. From a 2010 interim report on Chukchi Sea research, reference <a href="https://polarbearscience.com/2013/07/07/chukchi-polar-bear-status-contradicts-the-message-new-details/" target="_blank">here</a>.https://polarbearscience.com/wp-content/uploads/2015/02/nunavut-and-canadian-polar-bear-regions-that-allow-mark-recapture.jpgNunavut and Canadian Polar Bear regions that allow mark-recapture Figure 9. Regions in Canada where most research permits are no longer issued for mark-recapture work on polar bears: Northwest Territories, Nunavut, Quebec. Mark-recapture methods are still permitted in Manitoba and Ontario (home to Western and Southern Hudson Bay bears) and Labrador/Newfoundland. Details <a href="https://polarbearscience.com/2014/02/27/foxe-basin-aerial-survey-a-watershed-moment-for-polar-bear-research-part-2/" target="_blank">here</a>. https://polarbearscience.com/wp-content/uploads/2015/02/w-hudson-bay-sea-ice-same-week-at-july-2-1971_2014-marked.jpgW Hudson Bay sea ice same week at July 2 1971_2014 markedFigure 7. Sea ice coverage on Hudson Bay for the week of July 2, 1971-2014. The green line is the 1981-2010 median, yellow line indicates 20% ice coverage level for the entire bay, and arrows denote very late breakup years. Note that breakup for the Western Hudson Bay polar bear subpopulation is determined when ice in that region reaches the 30% level (<a href="https://polarbearscience.com/2013/03/21/polar-bears-of-w-hudson-bay-came-ashore-in-2009-as-late-as-in-1992/" target="_blank">Cherry et al. 2013</a>). This means Hudson Bay ice <a href="https://polarbearscience.com/2014/07/10/breakup-date-average-for-w-hudson-bay-is-july-1-this-year-its-late-again/" target="_blank">coverage overall is likely close to 20%</a> by the time that W. Hudson Bay coverage is reduced to 30%. Note how few years were at or below 20% by July 2: 1998, 1999, 2001, and 2006, 2010 and 2011 – six times over the last 44 years. Click to enlarge. https://polarbearscience.com/wp-content/uploads/2015/02/ec_polarbearstatusmap_oct-26-2014_direct.jpgEC_PolarBearStatusMap_Oct 26 2014_directFigure 6. Most recent global <a href="https://www.ec.gc.ca/nature/default.asp?lang=En&n=F77294A3-1#_fig02" target="_blank">polar bear population status</a> assessment, using figures from the IUCN Polar Bear Specialist Group assessment (2013) and Environment Canada (May 2014). Note that of the two subpopulations denoted as being on a likely declining trend, BB (Baffin Bay) is suspected to be declining due to over-hunting and SB (Southern Beaufort) had an unfinished rebound caused by thick spring ice conditions in 2004-2006; a more recent survey (2012) indicated SB numbers were higher than the previous 10 years. https://polarbearscience.com/wp-content/uploads/2015/02/sea-ice-extent-2012-min-only-southern-beaufort.jpgSea ice extent 2012 min only Southern BeaufortFigure 5. File https://polarbearscience.com/wp-content/uploads/2015/02/usfws-2013-2014-pb-news_cover_polarbearscience.jpgUSFWS 2013-2014 PB News_cover_PolarBearScienceFigure 4. <a href="http://www.fws.gov/alaska/fisheries/mmm/polarbear/facts.htm" target="_blank">Newsletter distributed by the USFWS</a>, (pdf <a href="https://polarbearscience.files.wordpress.com/2014/03/usfws-2013-2014-polar-bear-newsletter_sm.pdf" target="_blank">”Polar Bear News 2013-2014”</a> in which the preliminary report on the 2012 fall aerial survey appeared (pg. 17, lower right).https://polarbearscience.com/wp-content/uploads/2015/02/ec_polarbearstatus_and-trends-lg_2010-2014-mapscanada_oct-26-2014.jpgEC_PolarBearStatus_and Trends LG_2010-2014 MapsCanada_Oct 26 2014Figure 2. <a href="https://www.ec.gc.ca/nature/default.asp?lang=En&n=F77294A3-1#_fig04" target="_blank">Most recent global polar bear population status</a> assessment (far right), using figures from the IUCN Polar Bear Specialist Group assessment (2013) and Environment Canada (May 2014). Note that of the two subpopulations denoted as being on a likely declining trend, BB (Baffin Bay) is suspected to be declining due to over-hunting and SB (Southern Beaufort) had an unfinished rebound caused by thick spring ice conditions in 2004-2006; a more recent survey (2012) indicated SB numbers were higher than the previous 10 years. Note the improvement since 2010 (upper left) and even 2013 (lower left). Note also the number of regions considered “data deficient,” which have had no population survey or no recent one.https://polarbearscience.com/wp-content/uploads/2015/02/2013_pbsg-polar-bear-population-graphs_feb-17-2014.jpg2013_PBSG Polar bear population graphs_Feb 17 2014Figure 1. Upper graph uses totals reported in PBSG status tables (to 2013), with min/max; Lower graph uses the same figures, but adds back in the so-called "inaccurate" estimates dropped between 2005 and 2013 (in 2014, the PBSG finally <a href="http://pbsg.npolar.no/en/status/pb-global-estimate.html" target="_blank">did the same</a>).The 1960 figure * is a ballpark estimate.2015-02-19T17:46:44+00:00monthlyhttps://polarbearscience.com/2015/02/13/polar-bear-biologists-try-again-to-blame-s-beaufort-thick-spring-ice-on-global-warming/https://polarbearscience.com/wp-content/uploads/2015/02/pilfold-et-al-2015-in-press-fig-1.pngPilfold et al 2015 in press fig 1Figure 1. Area of the Pilfold et al. (2015) study in the eastern Beaufort, Canada, Fig 1 in the paper. The region encompassed part of the “Southern Beaufort” and the “North Beaufort” polar bear subpopulations. 2015-02-13T19:10:34+00:00monthlyhttps://polarbearscience.com/2013/07/04/great-polar-bear-red-herring-in-the-southern-beaufort/https://polarbearscience.com/wp-content/uploads/2013/07/red-herring-diagram-for-sb_july-4-20131.jpgRed herring diagram for SB_July 4 2013https://polarbearscience.com/wp-content/uploads/2013/07/red-herring-icon.jpgRed herring iconhttps://polarbearscience.com/wp-content/uploads/2013/07/red-herring-diagram-for-sb_july-3-2013.jpgRed herring diagram for SB_July 3 2013Figure 1. Cheat-sheet summary of the transition from the peer-reviewed papers that discussed or acknowledged the ‘thick ice in spring’ negative effects on polar bears to those that mentioned the negative effects but not the thick ice. The papers on the right reflect the new ‘red herring’ storyline for the Southern Beaufort: declines in body condition and survival are “correlated” with more open water due to sea ice declines (and no mention of thick ice in spring). Click to enlarge.2015-02-13T16:44:42+00:00monthlyhttps://polarbearscience.com/2012/07/26/cooling-the-polar-bear-spin/https://polarbearscience.com/wp-content/uploads/2012/07/stirling-2011-seal-declines_sm.jpgStirling 2011 seal declines_smStirling 2011, pg. 207https://polarbearscience.com/wp-content/uploads/2012/07/stirling-and-derocher-2012-seal-declines-pg-5-with-context.jpgStirling and Derocher 2012 seal declines pg 5 with contextStirling and Derocher 2012 (in press), pg. 5https://polarbearscience.com/wp-content/uploads/2012/07/stirling-2002.jpgStirling 2002Figure 5 from Stirling 2002. Note that "ovulation rate" and "natality" are measures used to assess reproductive success in ringed seals and polar bears, respectively. If effect, what it shows is that during cold, heavy ice winters (1974-74 and 1984-85), the numbers of probably-pregnant seals declines and as a consequence, some polar bears die and overall reproduction declines.https://polarbearscience.com/wp-content/uploads/2012/07/polar-bears-stanley-park-zoo_crockford-1970s_web.jpgPolar bears Stanley park zoo_Crockford 1970s_web2015-02-13T16:41:29+00:00monthlyhttps://polarbearscience.com/2015/02/04/east-greenland-polar-bears-said-to-be-the-most-polluted-but-appears-to-be-doing-just-fine/https://polarbearscience.com/wp-content/uploads/2015/02/barents-sea-anomaly-graph_cryospheretoday_feb-3-2015.jpgBarents Sea anomaly graph_CryosphereToday_Feb 3 2015Figure 9. <a href="http://arctic.atmos.uiuc.edu/cryosphere/IMAGES/region.all.anom.region.6.jpg" target="_blank">Barents Sea</a> ice anomaly, Cryosphere Today, at 3 Feb. 2015. https://polarbearscience.com/wp-content/uploads/2015/02/greenland-sea-anomaly-graph_cryospheretoday_feb-3-2015.jpgGreenland Sea anomaly graph_CryosphereToday_Feb 3 2015Figure 7. <a href="http://arctic.atmos.uiuc.edu/cryosphere/IMAGES/region.all.anom.region.5.jpg below Greenland Sea" target="_blank">East Greenland</a> sea ice anomaly, <span style="color:#3366ff;"><a style="color:#3366ff;" href="http://arctic.atmos.uiuc.edu/cryosphere/" target="_blank">Cryosphere Today</a></span> (University of Illinois), at 3 Feb. 2015.https://polarbearscience.com/wp-content/uploads/2015/02/anomaly-graph-regions-defined_cryosphere-today_feb-3-2015.jpgAnomaly graph regions defined_Cryosphere Today_Feb 3 2015Figure 7. Sea ice anomaly regions as defined by Cryosphere Today (University of Illinois)https://polarbearscience.com/wp-content/uploads/2015/02/hooded-seal-killed-by-polar-bear-deitz-photo-press-release-sept-2013.pngHooded seal killed by polar bear Deitz photo press release Sept 2013Figure 6. Hooded seal killed by a polar bear in East Greenland, pup, from <a href="http://scitech.au.dk/en/current-affairs/news/show/artikel/climate-change-polar-bears-change-to-diet-with-higher-contaminant-loads/" target="_blank">2013 press release</a>, photo by Rune Dietz. https://polarbearscience.com/wp-content/uploads/2015/02/harp-seal-polar-bear-prey-dietz-photo-press-release-sept-2013-scitech-au-dk-2013-9-21-9-46-47.pngHarp seal polar bear prey Dietz photo press release Sept 2013 scitech.au.dk 2013-9-21 9 46 47Figure 5. Harp seal and pup, from <a href="http://scitech.au.dk/en/current-affairs/news/show/artikel/climate-change-polar-bears-change-to-diet-with-higher-contaminant-loads/" target="_blank">2013 press release</a>, photo by Rune Dietz. https://polarbearscience.com/wp-content/uploads/2015/02/harp-and-hooded-seal-pupping-areas-and-distribution_ices-opinion-2013-fig-1.jpgHarp and hooded seal pupping areas and distribution_ICES opinion 2013 fig 1Figure 4. Fig. 1. from Stenson 2014, on the conclusions of the working group on harp and hooded seal status. Green spots are pupping and moulting areas, dark blue is the total distribution area. The “West Ice” off East Greenland is used by both species.https://polarbearscience.com/wp-content/uploads/2015/02/wiig-et-al-2003-fig-1-a-and-b.jpgWiig et al 2003 fig 1 a and bFigure 3. Positions by season of female polar bear D7356 (tracked for almost 4 years) over the pack ice: (a) October to March (winter/early spring); (b) April-June (mid-late spring). This is Fig. 1 from Wiig et al. 2003:510. “Filled dots 1994, filled squares 1995, filled triangles 1996, open dots 1997, open squares 1998. Arrows indicate denning positions and cross indicates tagging position. Minimum (9 Sept 1996) and maximum (7 Jan 1997) ice extent in the study period are indicated.” Click to enlarge. https://polarbearscience.com/wp-content/uploads/2015/02/east-greenland_laidre-et-al-f1large.jpgEast Greenland_Laidre et al F1largeFigure 2. Movements of adult female (red) and adult male (blue) polar bears off East Greenland and in Baffin Bay during the breeding season (April to May) from 2007-2011. This is Fig. 1 from Laidre et al. 2012:2). Note similarities to Fig. 3 below. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2015/02/map-eastgreenland.jpgmap-EastGreenlandFigure 1. Boundaries of East Greenland polar bear subpopulation, as defined by the IUCN Polar Bear Specialist Group. https://polarbearscience.com/wp-content/uploads/2015/02/east-greenland-scorsby-sound-march-2011-on-kap-tobin_rune-dietz_press-photo.jpgEast Greenland Scorsby Sound March 2011 on Kap Tobin_Rune Dietz_press photoEast Greenland Scorsby Sound March 2011 on Kap Tobin, Rune Dietz (press photo) <a href="http://pure.au.dk/portal/en/rdi@bios.au.dk" target="_blank">Rune Dietz</a> 2015-02-04T20:20:15+00:00monthlyhttps://polarbearscience.com/2015/01/28/polar-bear-penises-not-breaking-due-to-pcbs-new-paper-full-of-coulds-and-maybes/https://polarbearscience.com/wp-content/uploads/2015/01/beaufort-sea-male-polar-bear-usgs_2005-amstrup-photo.jpgBeaufort Sea male polar bear USGS_2005 Amstrup photohttps://polarbearscience.com/wp-content/uploads/2015/01/male_pb_usgs.jpgmale_pb_USGShttps://polarbearscience.com/wp-content/uploads/2015/01/marine-mammal-penis-bones_labeled_polarbearscience_2015_sm.jpgMarine mammal penis bones_labeled_PolarBearScience_2015_smThe polar bear baculum (top) is from a young male (you can tell because the ends are not fully formed). These are all casts of the real thing, purchased from professional bone casters <a href="http://www.skullsunlimited.com/search_results.php?search_term=baculum" target="_blank">Skulls Unlimited</a>. https://polarbearscience.com/wp-content/uploads/2015/01/marine-mammal-penis-bones_not-labeled_polarbearscience_2015_sm.jpgMarine mammal penis bones_not labeled_PolarBearScience_2015_sm2015-02-04T05:24:08+00:00monthlyhttps://polarbearscience.com/2015/02/03/tracking-polar-bears-in-the-beaufort-sea-january-2015-map/https://polarbearscience.com/wp-content/uploads/2015/02/tranquilized_pb570_s-beaufort-march-2014_usgs.jpgTranquilized_pb570_S Beaufort March 2014_USGShttps://polarbearscience.com/wp-content/uploads/2015/02/beaufort-tracking-usgs-bear-movements-january-2015-lg.jpgBeaufort tracking USGS bear-movements-January 2015 lgFigure 1. “Movements of 6 satellite-tagged polar bears for the month of January, 2015. Polar bears were tagged in 2014 on the spring-time sea ice of the southern Beaufort Sea. All six of these bears have satellite collar transmitters. Polar bear satellite telemetry data are shown with AMSR2 remotely-sensed ice coverage for 31 January, 2015.” Click to enlarge. Original <a href="http://alaska.usgs.gov/science/biology/polar_bears/images/bear-movements-January-2015.jpg" target="_blank">here</a>.2015-02-03T04:55:27+00:00monthlyhttps://polarbearscience.com/2015/01/28/claim-of-range-contraction-of-polar-bears-due-to-declines-in-summer-sea-ice-doesnt-hold-up/https://polarbearscience.com/wp-content/uploads/2015/01/2014-march-average.jpg2014 March averageFigure 1. March sea ice extent 2014 compared to the 1981-2010 average.https://polarbearscience.com/wp-content/uploads/2015/01/peacock-et-al-2013-fig-1_1974-to-2007.jpgPeacock et al 2013 fig 1_1974 to 2007Figure 5. This is Fig. 1 from Peacock et al. 2013, a compilation of survey data of polar bears in Davis Strait from 1974-2007.https://polarbearscience.com/wp-content/uploads/2015/01/newfoundland-great-northern-peninsula-map.pngNewfoundland Great Northern Peninsula mapFigure 5. Communities of Newfoundland.https://polarbearscience.com/wp-content/uploads/2015/01/brown-et-al-2011-mean-timing-of-sea-ice-retreat-1979-2009_st-matthew-marked.jpgBrown et al 2011 mean timing of sea ice retreat 1979-2009_St Matthew markedFigure 3. Mean timing of sea ice retreat for 1979-2009, from Brown et al. 2011, which also shows the mean maximum spring sea ice extent beyond St. Matthew Island (circled, added by me).https://polarbearscience.com/wp-content/uploads/2015/01/2006-nov-sea-ice-atlas-uaf_polarbearscience.jpg2006 Nov Sea ice atlas UAF_PolarBearScienceFigure 6. 2006 November, Sea ice atlas, UAF.https://polarbearscience.com/wp-content/uploads/2015/01/2006-june-sea-ice-atlas-uaf_polarbearscience.jpg2006 June Sea ice atlas UAF_PolarBearScienceFigure 5. 2006 June, Sea ice atlas, UAF.https://polarbearscience.com/wp-content/uploads/2015/01/polar-bear-range-changes_polarbearscience-jan-2015.jpgPolar bear range changes_PolarBearScience Jan 2015Figure 2.https://polarbearscience.com/wp-content/uploads/2015/01/bluefin23bcd_07.jpgBluefin23bcd_07Prehistoric bluefin tuna tail vertebrae, from a site on the west coast of Vancouver Island, British Columbia.https://polarbearscience.com/wp-content/uploads/2015/01/1920-nov-sea-ice-atlas-uaf_polarbearscience.jpg1920 Nov Sea ice atlas UAF_PolarBearScience1920 November, Sea ice atlas, UAFhttps://polarbearscience.com/wp-content/uploads/2015/01/1920-june-sea-ice-atlas-uaf_polarbearscience.jpg1920 June Sea ice atlas UAF_PolarBearScience1920 June, Sea ice atlas, UAF2015-01-28T04:28:48+00:00monthlyhttps://polarbearscience.com/2015/01/25/arctic-national-wildlife-refuge-in-alaska-wont-protect-polar-bears-from-thick-spring-ice/https://polarbearscience.com/wp-content/uploads/2015/01/pbi-salutes-obamas-support-to-designate-wildlife-refuge-area-for-polar-bears_jan-25-2015.jpgPBI salutes Obamas support to designate wildlife refuge area for polar bears_Jan 25 2015https://polarbearscience.com/wp-content/uploads/2015/01/arctic-nat-wildlife-refuge-proposed_usfws_map-4-designated-areas.jpgArctic Nat Wildlife Refuge proposed_USFWS_map 4 designated areas2015-01-26T01:32:21+00:00monthlyhttps://polarbearscience.com/2015/01/22/editorial-calls-for-more-jobs-for-polar-bear-biologists/https://polarbearscience.com/wp-content/uploads/2015/01/zoo-bears-munich-2014_stand-on-guard-for-polar-bears_edmontonjournal_10705529_jan-22-2015.jpgZoo bears Munich 2014_Stand on guard for polar bears_EdmontonJournal_10705529_Jan 22 2015Edmonton Journal editorial photo 22 January 2015https://polarbearscience.com/wp-content/uploads/2015/01/ar5_11_25s-from-ed-hawkins_sept-2013.pngAR5_11_25s from Ed Hawkins_Sept 2013IPCC 2013 predictions vs. observations.2015-01-22T21:41:32+00:00monthlyhttps://polarbearscience.com/2013/08/18/polar-bears-have-not-been-harmed-by-sea-ice-declines-in-summer-the-evidence/https://polarbearscience.com/wp-content/uploads/2013/08/sea-ice-extent-1979-2013-graph-composite-july-2013-sq-sm.jpgSea ice extent 1979-2013 graph composite July 2013 sq smSea ice extent graphs for September (which all the hysteria is about) compared to selected months from March, June and November. Ranges given are approximate; note the differences in scale for each graph. NSIDC graphs, colored labels added.https://polarbearscience.com/wp-content/uploads/2013/08/pb-map-all-populations-pbsg-original-plus-okhotsk.jpgPB map-all-populations PBSG original plus OkhotskFigure 2. A map of the 19 polar bear sub-populations. Courtesy the Polar Bear Specialist Group (PBSG), with labels added. SB, Southern Beaufort; NB, Northern Beaufort; VM, Viscount Melville; MC, M’Clintock Channel; LS, Lancaster Sound; GB, Gulf of Boothia; NW, Norwegian Bay; KB, Kane Basin; WH, Western Hudson Bay. https://polarbearscience.com/wp-content/uploads/2013/08/sea-ice-september-1979-2012-graph-nsidc.pngSea ice September 1979-2012 graph NSIDC Figure 1. The graph that has some people worried that Arctic sea ice is in a “<a href="http://www.ipsnews.net/2010/09/arctic-ice-in-death-spiral/" target="_blank">death spiral</a>” - it shows the decline in extent of Arctic sea ice (in million kilometers squared) in September each year (the yearly minimum), based on satellite records since 1979. Note that the scale on the left axis does not go to zero. Courtesy the National Snow and Ice Data Center (NSIDC). See Fig. 3 for another perspective. 2015-01-22T18:38:47+00:00monthlyhttps://polarbearscience.com/2015/01/15/faux-polar-bear-figures-my-editorial-in-the-national-post/https://polarbearscience.com/wp-content/uploads/2015/01/0115polarbear_np-story.jpg0115polarbear_NP storyPaul J. Richards/AFP/Getty Images [NP story]2015-01-15T22:12:07+00:00monthlyhttps://polarbearscience.com/2015/01/14/threatened-status-for-arctic-ringed-seals-under-esa-makes-no-sense/https://polarbearscience.com/wp-content/uploads/2015/01/ringedsealmap_noaa-proposed-critical-habitat_dec-3-2014.jpgRingedSealMap_NOAA proposed critical habitat_Dec 3 2014https://polarbearscience.com/wp-content/uploads/2015/01/ringed_seal_2_noaa.jpgRinged_seal_2_NOAA2015-01-14T15:21:17+00:00monthlyhttps://polarbearscience.com/2015/01/09/polar-bear-gene-flow-blamed-on-melting-ice-is-another-model-result-that-doesnt-make-sense/https://polarbearscience.com/wp-content/uploads/2015/01/svalbard-as-a-potential-warm-refugium_jan-8-2015_polarbearscience.jpgSvalbard as a potential warm refugium_Jan 8 2015_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2015/01/peacock-et-al-2015-polar-bear-genetics-fig-3.jpgPeacock et al 2015 polar bear genetics fig 3Figure 3 from Peacock et al. 2015.2015-01-09T16:20:34+00:00monthlyhttps://polarbearscience.com/2015/01/06/tracking-polar-bears-in-the-beaufort-sea-december-2014-map/https://polarbearscience.com/wp-content/uploads/2015/01/beaufort-tracking-usgs-bear-movements-december-2014-lg.jpgBeaufort tracking USGS bear-movements-December 2014 lgOriginal caption: “Movements of 10 satellite-tagged polar bears for the month of December, 2014. Polar bears were tagged in 2014 on the spring-time sea ice of the southern Beaufort Sea. All ten of these bears have satellite collar transmitters. Polar bear satellite telemetry data are shown with AMSR2 remotely-sensed ice coverage for 31 December, 2014.” Click to enlarge, original image <a href="http://alaska.usgs.gov/science/biology/polar_bears/images/bear-movements-December-2014.jpg" target="_blank">here</a>. https://polarbearscience.com/wp-content/uploads/2015/01/tranquilized_pb570_s-beaufort-march-2014_usgs.jpgTranquilized_pb570_S Beaufort March 2014_USGS2015-01-06T15:36:45+00:00monthlyhttps://polarbearscience.com/2014/12/31/threatened-arctic-species-comparison-shows-usa-most-assertive-about-global-warming/https://polarbearscience.com/wp-content/uploads/2014/12/2014-arctic-marine-mammal-status-compared_jan-3-update.jpg2014 Arctic marine mammal status compared_Jan 3 updatehttps://polarbearscience.com/wp-content/uploads/2014/12/arctic-marine-mammals_dec-31-2014_polarbearscience.jpgArctic marine mammals_Dec 31 2014_Polarbearsciencehttps://polarbearscience.com/wp-content/uploads/2014/12/2014-arctic-marine-mammals-status-compared_dec-31_polarbearscience.jpg2014 Arctic marine mammals status compared_Dec 31_Polarbearsciencehttps://polarbearscience.com/wp-content/uploads/2014/12/arctic-nations-telegraph-news-graphics-2007-_641827a.gifArctic nations Telegraph news-graphics-2007-_641827a2015-01-03T21:22:36+00:00monthlyhttps://polarbearscience.com/2015/01/01/iucn-polar-bear-specialist-group-out-lived-its-usefulness-20-years-ago/https://polarbearscience.com/wp-content/uploads/2015/01/cambridge-bay_we-re-ok_from-joe-prins.jpgCambridge Bay_we re OK_from Joe PrinsBumpersticker from Cambridge Bay, Nunavut, courtesy Joe Prins.2015-01-01T20:07:47+00:00monthlyhttps://polarbearscience.com/2014/12/30/kara-sea-first-ever-polar-bear-count-suggests-about-3200-bears-live-there/https://polarbearscience.com/wp-content/uploads/2014/12/map-karasea.jpgmap-KaraSeahttps://polarbearscience.com/wp-content/uploads/2014/12/kara-sea-polar-bear-estimate-from-ship-counts_fig-2.jpgKara Sea polar bear estimate from ship counts_Fig 2Figure 2 from Matishov et al. 2014, showing areas covered by the survey in 2013. Original caption: “Schematic map of division of the counted territory in January–March 2013 into 16 sectors of separate extrapolation. Circles, triangles, and squares mark the meetings of individual bears, females with one bear cub, and females with two bear cubs, respectively.”https://polarbearscience.com/wp-content/uploads/2014/12/kara-sea-polar-bear-estimate-from-ship-counts_fig-1.jpgKara Sea polar bear estimate from ship counts_Fig 1Figure 1 from Matishov et al. 2014, showing the study region and tracks of ice-breakers used to count bears. Original caption: “Position of ice-breaker routes providing the count of polar bears in the Kara and Barents seas from 1997 until 2013 for 32 counted routes. The dashed line indicates the approximate boundaries of habitat of the subpopulation of polar bears of the Kara Sea [4].”https://polarbearscience.com/wp-content/uploads/2014/12/kara-sea-icebreaker_worldatlas.jpgKara Sea icebreaker_worldatlasPhoto from <a href="http://www.worldatlas.com/aatlas/infopage/karasea.htm" target="_blank">Worldatlas</a> https://polarbearscience.com/wp-content/uploads/2014/12/kara_sea_map_wikipedia.pngKara_Sea_map_wikipediaThe Kara Sea is a largely enclosed, shallow sea that is ice-free for the summer months and essentially covered with first year ice during the winter and spring. Map courtesy <a href="http://upload.wikimedia.org/wikipedia/commons/3/31/Kara_Sea_map.png" target="_blank">Wikipedia</a>.https://polarbearscience.com/wp-content/uploads/2014/12/kara-sea_pbsg.jpgKara Sea_PBSG2014-12-30T05:22:00+00:00monthlyhttps://polarbearscience.com/2014/12/26/polar-bear-habitat-more-arctic-sea-ice-in-canada-this-week-than-in-early-1970s/https://polarbearscience.com/wp-content/uploads/2014/12/hudson-bay-freeze-up-same-week_dec-25-1971_2014-standard-average.pngHudson Bay freeze-up same week_Dec 25 1971_2014 standard averagehttps://polarbearscience.com/wp-content/uploads/2014/12/baffin-bay-freeze-up-same-week_dec-25-1968-to-2014_standard-average.pngBaffin Bay freeze-up same week_Dec 25 1968 to 2014_standard averagehttps://polarbearscience.com/wp-content/uploads/2014/12/davis-strait-freeze-up-same-week_dec-25-1971-to-2014_1981_2010-average.pngDavis Strait freeze-up same week_Dec 25 1971 to 2014_1981_2010 averagehttps://polarbearscience.com/wp-content/uploads/2014/12/canada-western-arctic-freeze-up-same-week_dec-25-1968-to-2014_standard-average.pngCanada Western Arctic freeze-up same week_Dec 25 1968 to 2014_standard averagehttps://polarbearscience.com/wp-content/uploads/2014/12/canada-eastern-arctic-freeze-up-same-week_dec-25-1968-to-2014_standard-average.pngCanada Eastern Arctic freeze-up same week_Dec 25 1968 to 2014_standard averagehttps://polarbearscience.com/wp-content/uploads/2014/12/canada-sea-ice-freeze-up_same-week_dec-25-1971_2014-standard-average.pngCanada sea ice freeze-up_same week_Dec 25 1971_2014 standard averagehttps://polarbearscience.com/wp-content/uploads/2014/12/sea-ice-extent-canada-2014-dec-26-cis.gifSea ice extent Canada 2014 Dec 26 CIShttps://polarbearscience.com/wp-content/uploads/2014/12/sea-ice-extent-2014-dec-25-nsidc.pngSea ice extent 2014 Dec 25 NSIDChttps://polarbearscience.com/wp-content/uploads/2014/12/send_nico_to_churchill_polarbearscience.jpgSend_Nico_to_Churchill_PolarBearScience2014-12-26T18:58:43+00:00monthlyhttps://polarbearscience.com/2014/12/25/western-hudson-bay-polar-bears-will-still-be-around-in-20-years/https://polarbearscience.com/wp-content/uploads/2014/12/nico_sm.jpgNico_sm2014-12-25T17:19:16+00:00monthlyhttps://polarbearscience.com/2013/01/21/extirpated-polar-bears-of-st-matthew-island-spent-five-months-on-land-during-the-summer/https://polarbearscience.com/wp-content/uploads/2013/01/bering-sea-ice-2012-end-april-to-20-dec.jpgBering sea ice 2012 end April to 20 DecFigure 3. At the end of April 2012, St. Matthew Island was still well surrounded by ice and did not clear the area until at least the end of May. The ice did not return to this region until mid-to-late December 2012. Ice conditions were somewhat more severe than this in 1875, when Elliott saw bears spending the summer on St. Matthew: then, the ice did not retreat until late June (about a month later than 2012) and was perhaps back again by late November. Modified maps from NSIDC. Click to enlarge.https://polarbearscience.com/wp-content/uploads/2013/01/pb-on-st-matthew-from-elliott-sketch-image052_rare-newspapers.jpgPB on St. Matthew from Elliott sketch image052_rare newspapersFigure 2. A drawing of polar bears on St. Matthew Island that accompanied the May 1, 1875 Harper’s Weekly Journal of Civilization article written by Henry Elliot. See <a href="http://www.rarenewspapers.com/view/173926" target="_blank">here</a>.https://polarbearscience.com/wp-content/uploads/2013/01/st-matthew-island-composite_from-wikipedia-maps.jpgSt. Matthew Island composite_from wikipedia mapsFigure 1. St. Matthew Island is in the Bering Sea off the west coast of Alaska: north of the Pribilofs and south of St. Lawrence Island, at about 60°N latitude. Compare this to the southern end of James Bay, Canada – which has a stable population of polar bears – at about 53 ⁰N and Churchill, Manitoba – the “polar bear capital of the world” – at 58 ⁰46’N. Maps from Wikipedia. 2014-12-19T18:09:51+00:00monthlyhttps://polarbearscience.com/2014/12/19/challenging-noaas-arctic-report-card-2014-on-polar-bears/https://polarbearscience.com/wp-content/uploads/2014/12/arctic-report-card-2014-screencap_dec-18-2014.jpgArctic report card 2014 screencap_Dec 18 2014https://polarbearscience.com/wp-content/uploads/2014/12/sea-ice-fig4-2_1978-to-2014-march-vs-sept.gifSea ice fig4.2_1978 to 2014 March vs SeptSea Ice Figure 4.2 from NOAA's "Arctic Report Card 2014"https://polarbearscience.com/wp-content/uploads/2014/12/wh-ec-polar-bear-demography-report-lunn-26-nov-2013-final-_fig-5.jpgWH EC Polar Bear Demography report Lunn 26 Nov 2013 Final _Fig 5https://polarbearscience.com/wp-content/uploads/2014/12/lunn-et-al-2013-fig-8-no-caption.jpgLunn et al 2013 fig 8 no captionFigure 1. This is Fig. 8 from Lunn et al. (2013), the <a href="https://polarbearscience.com/2014/12/10/w-hudson-bay-polar-bear-mark-recapture-study-report-2013-at-last/" target="_blank">most recent report</a> on the estimated size of the Western Hudson Bay polar bear population. 2014-12-19T09:06:07+00:00monthlyhttps://polarbearscience.com/2013/08/03/biologists-spreading-misinformation-hybridization-with-grizzlies-not-due-to-polar-bears-moving-inland/https://polarbearscience.com/wp-content/uploads/2013/08/doupe-et-al-2007-fig-1-map-only.jpgDoupe et al 2007 fig 1 map onlyFigure 2. This map is Fig. 1 from the Doupé et al. (2007) paper. It shows the locations of “selected examples of grizzly bear sightings in the southern Canadian Arctic Archipelago," up to and including the hybrid shot in 2006. 1. Schwatka (1995 interprets the “unusual animals” sighted by Inuit in the Simpson Strait area as grizzly bears; 2) 1938: pair of grizzlies observed on the sea ice 24 m west of Perry River; 3)1951: hunter kills grizzly bear in Masik River valley, Banks Island; 4) 1986: one bear shot, another suspected in Holman; 5) 1991: bear tranquillized and examined on sea ice, 60 km south of Melville Island; 6) 1996-2002: five kill records in Gjoa Haven; 7) five-year-old male grizzly harvested around Gore Islands; 8) 2001:bear denned within 20 km of Cambridge Bay; 9) 2003: most northerly sighting of a grizzly bear in Canada, Cape Clarendon (this study); 10) 2004: tracks observed , DNA obtained, Cape Providence (this study); 11) 2006: grizzly-polar bear hybrid killed, Nelson Head. The paper is available free of charge (<a href="http://arctic.synergiesprairies.ca/arctic/index.php/arctic/article/view/219" target="_blank">here</a>).https://polarbearscience.com/wp-content/uploads/2013/08/banks-and-victoria-island-may-23-2013-polar-bear-grizzly-hybridization-sea-ice-map.jpgBanks and Victoria Island May 23 2013 polar bear grizzly hybridization sea ice mapFigure 1. Sea ice extent in late spring in the western Arctic (May 23, 2013). Note that there is solid ice between the mainland and Banks and Victoria islands at this time. Some grizzly males emerge from their winter dens long before grizzly females and go wandering in search of food and potential mates: they can find both out on the sea ice beyond the coastline. See Fig. 2 for a history of grizzly excursions onto the sea ice and the Arctic islands, which have taken then even further north than Victoria Island. Click to enlarge.2014-12-19T02:23:20+00:00monthlyhttps://polarbearscience.com/2014/12/16/polar-bears-in-winter-a-seasonal-review-of-insights-and-research/2014-12-16T17:32:55+00:00monthlyhttps://polarbearscience.com/2013/12/22/polar-bear-winter-a-spectacular-northern-lights-video-from-finland/https://polarbearscience.com/wp-content/uploads/2013/12/oulu-finland_location-map_google-maps.jpgOulu Finland_location map_Google mapsLocation of Oulu, Finland.2014-12-16T16:35:51+00:00monthlyhttps://polarbearscience.com/2014/12/11/hudson-bay-sea-ice-well-above-average-excellent-early-december-polar-bear-habitat/https://polarbearscience.com/wp-content/uploads/2014/12/sea-ice-extent-canada_2013-dec-12_cis.gifSea ice extent Canada_2013 Dec 12_CIS12 December 2013https://polarbearscience.com/wp-content/uploads/2014/12/sea-ice-extent-2014-dec-10_nsidc.pngSea ice extent 2014 Dec 10_NSIDChttps://polarbearscience.com/wp-content/uploads/2014/12/sea-ice-extent-canada-2014-dec-11-cis.gifSea ice extent Canada 2014 Dec 11 CIShttps://polarbearscience.com/wp-content/uploads/2014/12/hudson-bay-freeze-up-same-week_dec-11-1971_2014-w-average.pngHudson Bay freeze-up same week_Dec 11 1971_2014 w average2014-12-11T16:12:17+00:00monthlyhttps://polarbearscience.com/2014/12/10/w-hudson-bay-polar-bear-mark-recapture-study-report-2013-at-last/https://polarbearscience.com/wp-content/uploads/2014/12/wh-ec-polar-bear-demography-report-lunn-26-nov-2013-final-_summary.jpgWH EC Polar Bear Demography report Lunn 26 Nov 2013 Final _Summaryhttps://polarbearscience.com/wp-content/uploads/2014/12/wh-ec-polar-bear-demography-report-lunn-26-nov-2013-final-_fig-8.jpgWH EC Polar Bear Demography report Lunn 26 Nov 2013 Final _Fig 82014-12-10T13:40:31+00:00monthlyhttps://polarbearscience.com/2014/12/08/public-misled-about-w-hudson-bay-bears-since-november-2013/https://polarbearscience.com/wp-content/uploads/2014/12/whb-bears-on-verge-of-collapse_goldenberg_nov-27-2013.jpgWHB bears on verge of collapse_Goldenberg_Nov 27 20132014-12-08T19:56:28+00:00monthlyhttps://polarbearscience.com/2014/12/07/tracking-polar-bears-in-the-beaufort-sea-november-2014-map/https://polarbearscience.com/wp-content/uploads/2014/12/beaufort-tracking-usgs-bear-movements-november-2014_lg.jpgBeaufort tracking USGS bear-movements-November-2014_lg Figure 1. Original caption: "Movements of 12 satellite-tagged polar bears for the month of November, 2014. Polar bears were tagged in 2014 on the spring-time sea ice of the southern Beaufort Sea. All twelve of these bears have satellite collar transmitters. Polar bear satellite telemetry data are shown with AMSR2 remotely-sensed ice coverage for 30 November, 2014." Click to enlarge, original <a href="http://alaska.usgs.gov/science/biology/polar_bears/images/bear-movements-November-2014.jpg" target="_blank">here</a>. 2014-12-07T19:23:43+00:00monthlyhttps://polarbearscience.com/2014/12/05/western-hudson-bay-polar-bear-population-is-stable-press-release/https://polarbearscience.com/wp-content/uploads/2014/12/arviat-with-churchill_rankin-and-whale-cove_polarbearscience.jpgArviat with Churchill_Rankin and Whale Cove_PolarBearScience2014-12-05T19:41:38+00:00monthlyhttps://polarbearscience.com/2014/12/04/hudson-bay-sea-ice-above-average-for-this-date-more-good-news-for-polar-bears/https://polarbearscience.com/wp-content/uploads/2014/12/baffin-bay-freeze-up-same-week_dec-4-1968-to-2014.pngBaffin Bay freeze-up same week_Dec 4 1968 to 2014https://polarbearscience.com/wp-content/uploads/2014/12/hudson-bay-foxe-basin-sea-ice-same-week-at-dec-4-1968_2014-with-average.pngHudson Bay Foxe Basin sea ice same week at Dec 4 1968_2014 with averagehttps://polarbearscience.com/wp-content/uploads/2014/12/davis-strait-freeze-up-same-week_dec-4-1971-to-2014.pngDavis Strait freeze-up same week_Dec 4 1971 to 2014https://polarbearscience.com/wp-content/uploads/2014/12/hudson-strait-freeze-up-same-week_dec-4-1971_2014-w-average.pngHudson Strait freeze-up same week_Dec 4 1971_2014 w averagehttps://polarbearscience.com/wp-content/uploads/2014/12/hudson-bay-central-only-freeze-up-same-week_dec-4-1971_2014-w-average.pngHudson Bay Central only freeze-up same week_Dec 4 1971_2014 w averagehttps://polarbearscience.com/wp-content/uploads/2014/12/sea-ice-extent-2012-dec-2-nsidc.pngSea ice extent 2012 Dec 2 NSIDChttps://polarbearscience.com/wp-content/uploads/2014/12/sea-ice-extent-2013-dec-3-daily_nsidc.pngSea ice extent 2013 Dec 3 daily_NSIDChttps://polarbearscience.com/wp-content/uploads/2014/12/sea-ice-extent-2014-dec-3_nsidc.pngSea ice extent 2014 Dec 3_NSIDChttps://polarbearscience.com/wp-content/uploads/2014/12/sea-ice-canada-2014-vs-2012_dec-4_hudson-bay_polarbearscience.jpgSea ice Canada 2014 vs 2012_Dec 4_Hudson Bay_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2014/12/hudson-bay-freeze-up-same-week_dec-4-1971_2014-w-average.pngHudson Bay freeze-up same week_Dec 4 1971_2014 w average2014-12-04T17:40:49+00:00monthlyhttps://polarbearscience.com/2014/12/03/polar-bear-habitat-update-november-2014-average-sea-ice-levels-higher-than-2003/https://polarbearscience.com/wp-content/uploads/2014/12/sea-ice-extent-canada-2014-dec-4-cis.gifSea ice extent Canada 2014 Dec 4 CIShttps://polarbearscience.com/wp-content/uploads/2014/12/sea-ice-extent-canada-2014-dec-2-cis.gifSea ice extent Canada 2014 Dec 2 CIShttps://polarbearscience.com/wp-content/uploads/2014/12/sea-ice-extent-2014-dec-2_nsidc.pngSea ice extent 2014 Dec 2_NSIDChttps://polarbearscience.com/wp-content/uploads/2014/12/sea-ice-extent-2014-nov-average_nsidc-dec-2_lg.pngSea ice extent 2014 Nov average_NSIDC Dec 2_lghttps://polarbearscience.com/wp-content/uploads/2014/12/arctic-ice-nov-aver_nsidc_sm_polarbearscience.jpgArctic ice Nov aver_NSIDC_sm_PolarBearScience2014-12-04T07:22:36+00:00monthlyhttps://polarbearscience.com/2014/11/29/davis-strait-polar-bear-habitat-the-sea-ice-is-forming-but-its-late/https://polarbearscience.com/wp-content/uploads/2014/11/sea-ice-extent-2014-nov-29_nsidc.pngSea ice extent 2014 Nov 29_NSIDChttps://polarbearscience.com/wp-content/uploads/2014/11/davis-strait-freeze-up-same-week_dec-4-1971-to-2013.pngDavis Strait freeze-up same week_Dec 4 1971 to 2013https://polarbearscience.com/wp-content/uploads/2014/11/davis-strait-freeze-up-same-week_nov-26-to-2014.pngDavis Strait freeze-up same week_Nov 26 to 2014https://polarbearscience.com/wp-content/uploads/2014/11/sea-ice-extent-canada-2014-nov-29-cis.gifSea ice extent Canada 2014 Nov 29 CIS2014-11-30T17:46:34+00:00monthlyhttps://polarbearscience.com/2014/11/29/amstrup-knows-his-polar-bear-predictions-are-flawed-but-continues-to-promote-them/https://polarbearscience.com/wp-content/uploads/2014/11/crystal-ball_3c.jpgcrystal ball_3c2014-11-30T02:11:39+00:00monthlyhttps://polarbearscience.com/2014/11/26/winnipeg-zoo-unashamedly-frightens-children-about-polar-bear-extinction-for-a-price/https://polarbearscience.com/wp-content/uploads/2014/11/zoo-propaganda_graphic-polar-bear-population-worldwide_globe-and-mail_nov-23-2014.jpgZoo propaganda_graphic Polar bear population worldwide_Globe and Mail_Nov 23 2014Sea ice graphic, <a href="http://www.theglobeandmail.com/news/national/innovative-winnipeg-zoo-experiment-shares-the-plight-of-polar-bears/article21721235/" target="_blank">Globe and Mail 23 November 2014</a>https://polarbearscience.com/wp-content/uploads/2014/11/zoo_assiniboineparkzoo_journey-to-churchill.pngZoo_assiniboineparkzoo_Journey to Churchill<a href="http://www.assiniboineparkzoo.ca/attractions/exhibits-info.php?entry_id=13916" target="_blank">“Journey to Churchill” </a>entrance to one of the exhibit’s sections: ” Journey to Churchill is the most comprehensive project ever undertaken in Canada aimed at issues related to climate change, polar bears and other northern species.” https://polarbearscience.com/wp-content/uploads/2014/11/zoo-entrance-fees_winnipeg-zoo_nov-24-2014.jpgZoo entrance fees_Winnipeg zoo_Nov 24 2014Assiniboine Park Zoo Winnipeg2014-11-27T01:44:41+00:00monthlyhttps://polarbearscience.com/2014/11/26/labrador-polar-bears-face-a-longer-ice-free-season-than-hudson-bay-bears-but-do-well/https://polarbearscience.com/wp-content/uploads/2014/11/harp-seals-canada-dfo-2012-fig1.jpgHarp seals Canada DFO 2012 Fig1https://polarbearscience.com/wp-content/uploads/2014/11/sea-ice-extent-canada-2014-april-1_cis.gifSea ice extent Canada 2014 April 1_CIShttps://polarbearscience.com/wp-content/uploads/2014/11/harp-seal-pup_dfo-newfoundland.jpgHarp seal pup_DFO NewfoundlandHarp seal female with nursing pup, DFO Canada.https://polarbearscience.com/wp-content/uploads/2014/11/davis-strait-hudson-bay-freeze-up-at-nov-25-2014_polarbearscience.jpgDavis Strait Hudson Bay freeze-up at Nov 25 2014_PolarBearScience2014-11-26T14:57:33+00:00monthlyhttps://polarbearscience.com/2014/11/21/lake-effect-snow-in-ny-just-like-victoria-b-c-blizzards-of-1996-1916/https://polarbearscience.com/wp-content/uploads/2014/11/victoria-blizzard-of-96_flickr-photo_bob_2006.jpgVictoria Blizzard of 96_Flickr photo_Bob_2006Snow at "Bob's" front door. A Flickr photo, hope you don't mind, Bob! https://polarbearscience.com/wp-content/uploads/2014/11/victoria_map_polarbearscience.jpgVictoria_Map_PolarBearScience2014-11-22T01:02:43+00:00monthlyhttps://polarbearscience.com/2014/11/20/hudson-bay-freeze-up-way-more-ice-for-this-day-than-in-2013/https://polarbearscience.com/wp-content/uploads/2014/11/hudson-bay-freeze-up-ice-cover-same-week_nov-19-1971_2014-w-average.pngHudson Bay freeze-up ice cover same week_Nov 19 1971_2014 w averagehttps://polarbearscience.com/wp-content/uploads/2014/11/sea-ice-extent-canada_2013-nov-20_cis_polarbearscience.gifSea ice extent Canada_2013 Nov 20_CIS_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2014/11/sea-ice-extent-canada-2014-nov-20-cis.gifSea ice extent Canada 2014 Nov 20 CIS2014-11-20T16:53:28+00:00monthlyhttps://polarbearscience.com/2014/11/17/russia-the-first-to-ban-polar-bear-hunting-in-1956-not-a-surprise-why/https://polarbearscience.com/wp-content/uploads/2014/11/soviet-soldier-in-a-tank-feeding-condensed-milk-to-polar-bears-c-1950-imgur.jpgSoviet soldier in a tank, feeding condensed milk to polar bears c. 1950 - Imgur2014-11-17T17:05:13+00:00monthlyhttps://polarbearscience.com/2014/11/16/hudson-bay-freeze-up-update-most-polar-bears-on-the-ice/https://polarbearscience.com/wp-content/uploads/2014/11/derocher-tweet-nov-15-2014-re-freeze-up.jpgDerocher tweet Nov 15 2014 re freeze-uphttps://polarbearscience.com/wp-content/uploads/2014/11/hudson-bay-freeze-up-ice-development_nov-16-2014.gifHudson Bay freeze-up ice development_Nov 16 2014https://polarbearscience.com/wp-content/uploads/2014/11/sea-ice-extent-canada-2014-nov-17-cis.gifSea ice extent Canada 2014 Nov 17 CIS2014-11-17T06:53:39+00:00monthlyhttps://polarbearscience.com/2014/11/13/hudson-bay-freeze-up-2014-average-again-this-year-not-late/https://polarbearscience.com/wp-content/uploads/2014/11/hudson-bay-freeze-up-ice-development_nov-14-2014.gifHudson Bay freeze-up ice development_Nov 14 2014https://polarbearscience.com/wp-content/uploads/2014/11/sea-ice-extent-canada-2014-nov-15-cis.gifSea ice extent Canada 2014 Nov 15 CIShttps://polarbearscience.com/wp-content/uploads/2014/11/sea-ice-extent-2014-2010_2008_1983-nsidc-interactive-graph-at-nov-13-2014.jpgSea ice extent 2014 -2010_2008_1983 NSIDC interactive graph at Nov 13 2014https://polarbearscience.com/wp-content/uploads/2014/11/hudson-bay-freeze-up-ice-development_nov-12-2014.gifHudson Bay freeze-up ice development_Nov 12 2014https://polarbearscience.com/wp-content/uploads/2014/11/sea-ice-extent-canada-2014-nov-13-cis.gifSea ice extent Canada 2014 Nov 13 CIS2014-11-15T06:02:34+00:00monthlyhttps://polarbearscience.com/2014/11/13/meltdown-terror-at-the-top-of-the-world-new-book-exploits-polar-bear-attack-to-sell-fear-of-sea-ice-decline/https://polarbearscience.com/wp-content/uploads/2014/11/sea-ice-in-canada-jun-30-2013.gifSea ice in Canada Jun 30 2013Figure 2. State of the sea ice at 30 June 2013. On that date, there was still ice off Torngat Mountains National Park where the polar bear attack occurred. Bears would have been getting ready to leave the ice.https://polarbearscience.com/wp-content/uploads/2014/11/torngate-mountains-nat-park-v1_polarbearscience.jpgTorngate Mountains Nat Park v1_PolarBearScienceFigure 1. Location of the 2013 polar bear attack on Matt Dyer, in Torngat Mountains National Park, Labrador, Canada. At latitude ~59 degrees North, the park is on almost the same latitude as Churchill, Manitoba (~58 degrees N), but is about 2,070 miles away from the North Pole (“the top of the world”).https://polarbearscience.com/wp-content/uploads/2014/11/melt-down_terror-at-the-top-of-the-world_nov-12-2014-press-release-book-cover.jpgMelt-down_Terror at the Top of the World_Nov 12 2014 press release book cover2014-11-13T23:55:01+00:00monthlyhttps://polarbearscience.com/2012/11/14/the-sea-ice-is-back-and-polar-bears-are-heading-out/https://polarbearscience.com/wp-content/uploads/2012/11/sea-ice-extent-canada_oct-3_cmmbctca.gifSea ice extent Canada_Oct 3_CMMBCTCAFigure 4. Sea ice extent in Canadian waters at October 3, 2012, courtesy Canadian Ice Service. Note the area in the Canadian High Arctic that retains ice year round (the yearly sea ice minimum was reached on September 16 in 2012). https://polarbearscience.com/wp-content/uploads/2012/11/sea-ice-extent-canada_nov-14_cmmbctca.gifSea ice extent Canada_Nov 14_CMMBCTCAFigure 3. Sea ice extent in Canadian waters today, Nov. 14, 2012, courtesy Canadian Ice Service. Note new ice formation along the northwest edge of Hudson Bay (where many polar bears have spent the ice-free late summer/early fall period) and in Baffin Bay, between Greenland and Baffin Island. Most of the Central Canadian Arctic has had ice for weeks now - that is, those areas that never lost ice: the northern portion of the Canadian Arctic has ice year round. See fig. 4 below, taken October 3, 2012 to see how much ice has developed over the last 6 weeks. https://polarbearscience.com/wp-content/uploads/2012/11/sea-ice-extent-2012-nov-12-nsidc.pngSea ice extent 2012 Nov 12 NSIDCFigure 2. Sea ice extent as of Nov. 12, 2012. Note that due to peculiarities/shortcomings of satellite technology, there is almost certainly more ice at the edges of the ice pack and at the shorelines of Arctic regions than is captured by this image. In addition, ice is forming rapidly at this time of year. For example, see fig. 3 below for a detailed image of ice in Canadian waters, taken two days after the image above. https://polarbearscience.com/wp-content/uploads/2012/11/pb-map-all-populations-pbsg-original-whb-sm.jpgPB map-all-populations PBSG original WHB smFigure 1. Polar bear subpopulations defined by the Polar Bear Specialist Group (PBSG). Note that Baffin Bay, Davis Strait, Western Hudson Bay and Southern Hudson Bay are all similar in that they become ice-free by early fall (the September minimum) or before.2014-11-12T19:48:22+00:00monthlyhttps://polarbearscience.com/2014/11/12/tracking-polar-bears-in-the-beaufort-sea-october-2014-map-shows-most-ice-since-2010/https://polarbearscience.com/wp-content/uploads/2014/11/beaufort-tracking-usgs-bear-movements-october-2013.jpgBeaufort tracking USGS bear-movements-October-2013Figure 2. Movements of satellite-tagged polar bears for the month of October, 2013 in the Southern Beaufort Sea. Original here. https://polarbearscience.com/wp-content/uploads/2014/11/beaufort-tracking-usgs-bear-movements-october-2010_sm.jpgBeaufort tracking USGS bear-movements-October-2010_smFigure 5. Movements of satellite-tagged polar bears for the month of October, 2010 in the Southern Beaufort Sea. Originalhttps://polarbearscience.com/wp-content/uploads/2014/11/beaufort-tracking-usgs-bear-movements-october-2011.jpgBeaufort tracking USGS bear-movements-October-2011Figure 4. Movements of satellite-tagged polar bears for the month of October, 2011 in the Southern Beaufort Sea. Original here. https://polarbearscience.com/wp-content/uploads/2014/11/beaufort-tracking-usgs-bear-movements-october-2012.jpgBeaufort tracking USGS bear-movements-October-2012Figure 3. Movements of satellite-tagged polar bears for the month of October, 2012 in the Southern Beaufort Sea. Original here. https://polarbearscience.com/wp-content/uploads/2014/11/sea-ice-extent-canada-2014-nov-9-cis.gifSea ice extent Canada 2014 Nov 9 CISFigure 1. Sea ice concentration in Canada shows virtually 100% coverage of the Southern Beaufort.https://polarbearscience.com/wp-content/uploads/2014/11/beaufort-tracking-usgs-bear-movements-october-2014-lg.jpgBeaufort tracking USGS bear-movements-October-2014 lgFig. 1. Movements of 12 satellite-tagged polar bears for the month of October, 2014. Polar bears were tagged in 2014 on the spring-time sea ice of the southern Beaufort Sea. All twelve of these bears have satellite collar transmitters. Polar bear satellite telemetry data are shown with AMSR2 remotely-sensed ice coverage for 31 October, 2014. Click on the above image to enlarge. [looks like the 12th bear is a light pink icon (seen in the July map, with a track only visible on the August map) under one of the others onshore]2014-11-12T03:22:45+00:00monthlyhttps://polarbearscience.com/2014/11/11/a-more-optimistic-view-of-churchill-polar-bears-and-hudson-bay-freeze-up/https://polarbearscience.com/wp-content/uploads/2014/11/sea-ice-extent-canada-2014-nov-11-cis.gifSea ice extent Canada 2014 Nov 11 CISFigure 3. Sea ice concentration for 11 November 2014. Note the ice forming along the western shore of Hudson Bay. Click to enlargehttps://polarbearscience.com/wp-content/uploads/2014/11/sea-ice-extent-canada-2014-nov-10-cis.gifSea ice extent Canada 2014 Nov 10 CISFigure 2. Sea ice concentration for 10 November 2014.https://polarbearscience.com/wp-content/uploads/2014/11/churchill-wapusk-nat-park_parks-canada.gifChurchill Wapusk Nat Park_Parks CanadaFigure 1. Map of Wapusk National Park and the Churchill region, courtesy <a href="http://www.pc.gc.ca/eng/pn-np/mb/wapusk/visit/carte-map/carte-map-03.aspx" target="_blank">Parks Canada</a>. 2014-11-11T16:23:29+00:00monthlyhttps://polarbearscience.com/2014/11/09/polar-bear-listed-as-a-migratory-species-by-unep-to-restrict-oil-exploration-extraction/https://polarbearscience.com/wp-content/uploads/2014/11/polarbear_new_usgs.jpgpolarbear_new_USGS2014-11-11T15:34:51+00:00monthlyhttps://polarbearscience.com/2014/11/07/bbc-provides-a-forum-for-desperate-biologists-will-polar-bears-become-extinct/https://polarbearscience.com/wp-content/uploads/2014/11/hudson-bay-freeze-up-ice-development_nov-6-2014.gifHudson Bay freeze-up ice development_Nov 6 2014Figure 3. Sea ice development in Northern Hudson Bay at 6 November 2014, showing freeze-up well underway all the way down to “Polar Bear Capital of the World” at Churchill. Courtesy <a href="http://iceweb1.cis.ec.gc.ca/Prod20/page3.xhtml" target="_blank">Canadian Ice Service</a>. https://polarbearscience.com/wp-content/uploads/2014/11/sea-ice-extent-canada_2013-nov-8_cis.gifSea ice extent Canada_2013 Nov 8_CISFigure 2. Sea ice concentration in Canada at 8 November 2013, less ice than this year at this time. Courtesy Canadian Ice Service.https://polarbearscience.com/wp-content/uploads/2014/11/sea-ice-extent-canada-2014-nov-7-cis.gifSea ice extent Canada 2014 Nov 7 CISFigure 1. Sea ice concentration in Canada at 7 November 2014, <a href="https://polarbearscience.com/2013/11/13/hudson-bay-freeze-up-average-this-year-not-late/" target="_blank">more ice than last year at this time.</a> Courtesy <a href="http://www.ec.gc.ca/glaces-ice/default.asp?lang=En&n=542306E5-1" target="_blank">Canadian Ice Service</a>. Freeze-up is well underway on Hudson Bay. https://polarbearscience.com/wp-content/uploads/2014/11/amstrup_only-solution_with-2-cubs_oct-8-2014.jpgAmstrup_only solution_with 2 cubs_Oct 8 2014https://polarbearscience.com/wp-content/uploads/2014/11/amstrup_only-solution-for-polar-bears_oct-8-2014-summary.jpgAmstrup_only solution for polar bears_Oct 8 2014 summaryhttps://polarbearscience.com/wp-content/uploads/2014/11/usfws_polarbearnews2013_pg5.jpgUSFWS_PolarBearNews2013_pg52014-11-07T21:46:32+00:00monthlyhttps://polarbearscience.com/2014/11/05/polar-bear-specialist-says-there-are-800-polar-bears-in-w-hudson-bay-govt-says-1000-1500/https://polarbearscience.com/wp-content/uploads/2014/11/arviat-halloween-pb-problem-tweet_oct-21-2014.jpgArviat Halloween PB problem tweet_Oct 21 20142014-11-05T05:43:51+00:00monthlyhttps://polarbearscience.com/2014/11/04/polar-bear-habitat-update-what-a-difference-a-year-makes-to-sea-ice-coverage-in-canada/https://polarbearscience.com/wp-content/uploads/2014/11/polar-bears-off-churchill_2000-11-20_wikipedia.jpgPolar bears off Churchill_2000-11-20_wikipediahttps://polarbearscience.com/wp-content/uploads/2014/11/2014-vs-2013-sea-ice-canada-4-nov_polarbearscience1.jpg2014 vs 2013 Sea ice Canada 4 Nov_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2014/11/sea-ice-extent-canada-2014-nov-4-cis_polarbearscience.gifSea ice extent Canada 2014 Nov 4 CIS_PolarBearScience2014-11-04T16:51:16+00:00monthlyhttps://polarbearscience.com/2014/11/02/polar-bear-biologists-doing-mark-recapture-work-in-hudson-bay-may-have-misled-the-world/https://polarbearscience.com/wp-content/uploads/2014/10/alysa-mccall_derocher-msc-student-pre-2013-whb-cubs.jpgAlysa McCall_Derocher MSc student pre-2013 WHB cubsDerocher's recently graduated Master's student Alysa McCall has a photo op with a WHB cub (from <a href="http://www.biology.ualberta.ca/faculty/andrew_derocher/?Page=8020" target="_blank">her student page</a>).https://polarbearscience.com/wp-content/uploads/2014/10/lunn_nick_gov-ca-w-cub.jpgLunn_Nick_gov CA w cubNick Lunn, polar bear researcher for Environment Canada, uses the cub of a drugged female for a photo ophttps://polarbearscience.com/wp-content/uploads/2014/10/arviat-with-churchill_google-maps.jpgArviat with Churchill_Google mapsFigure 1. Churchill is in the Western Hudson Bay polar bear subpopulation, governed by the Province of Manitoba (which <a href="https://polarbearscience.com/2014/03/02/guest-post-invasive-research-is-alive-and-well-in-canada/" target="_blank">still permits mark-recapture</a>, while the community of Arviat, also in 'Western Hudson Bay' is overseen by the Government of Nunavut, which has recently <a href="https://polarbearscience.com/2014/02/24/foxe-basin-aerial-survey-a-watershed-moment-for-polar-bear-research-part-1/" target="_blank">refused to allow mark-recapture work</a>. <a href="http://www.ontario.ca/environment-and-energy/polar-bear" target="_blank">In Ontario</a>, where most bears from the Southern Hudson Bay subpopulation reside, <a href="https://polarbearscience.com/2013/07/25/southern-hudson-bay-subpopulation-status-farthest-south-of-all-polar-bears/" target="_blank">recent population estimates</a> have come from aerial surveys rather than mark-recapture work. https://polarbearscience.com/wp-content/uploads/2014/10/u-alberta-student-mislan-bio-photos_polarbearscience.jpgU Alberta student Mislan bio photos_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2014/10/pbsg2014-group2.jpgPBSG2014-group2Polar Bear Specialist Group members at their July 2014 meeting.2014-11-02T14:03:36+00:00monthlyhttps://polarbearscience.com/2014/10/31/polar-bear-habitat-update-sea-ice-starting-to-form-on-hudson-bay/https://polarbearscience.com/wp-content/uploads/2014/10/2014-july-vs-oct-at-9-0mkm2_polarbearscience.jpg2014 July vs Oct at 9.0mkm2_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2014/10/hudson-bay-freeze-up-ice-cover-same-week_nov-12-1971_2013-with-average.pngHudson Bay freeze-up ice cover same week_Nov 12 1971_2013 with averagehttps://polarbearscience.com/wp-content/uploads/2014/10/hudson-bay-foxe-basin-sea-ice-same-week-at-nov-12-1971_2013-with-average.pngHudson Bay Foxe Basin sea ice same week at Nov 12 1971_2013 with averagehttps://polarbearscience.com/wp-content/uploads/2014/10/hudson-bay-foxe-basin-sea-ice-same-week-at-oct-29-1971_2014.pngHudson Bay Foxe Basin sea ice same week at Oct 29 1971_2014https://polarbearscience.com/wp-content/uploads/2014/10/sea-ice-extent-canada-2014-oct-31-cis.gifSea ice extent Canada 2014 Oct 31 CIS2014-10-31T18:07:12+00:00monthlyhttps://polarbearscience.com/2014/10/29/w-hudson-bay-polar-bear-population-no-longer-declining-where-are-the-headlines/https://polarbearscience.com/wp-content/uploads/2014/10/zoo-polar-bear-orphan-cubs-11-mos_assiniboine_oct-27-2014.jpgZoo polar-bear orphan cubs 11 mos_Assiniboine_Oct 27 2014Orphaned cubs from Churchill now on display in Winnipeg2014-10-29T16:20:33+00:00monthlyhttps://polarbearscience.com/2013/07/25/southern-hudson-bay-subpopulation-status-farthest-south-of-all-polar-bears/https://polarbearscience.com/wp-content/uploads/2013/07/james-bay-female-and-cub_ontaro-govt.jpgJames Bay female and cub_Ontaro GovtFigure 6. James Bay polar bear female and her cub during the ice-free period. Notice how fat they both are. Courtesy Ministry of Natural Resources, <a href="http://news.ontario.ca/mnr/en/2009/06/protecting-the-far-north.html" target="_blank"><em>News Ontario</em></a>, June 2, 2009.https://polarbearscience.com/wp-content/uploads/2013/07/hudson-bay-freeze-up-nov-30-2012.gifHudson Bay freeze-up Nov 30 2012Figure 5. Fall freeze-up: Hudson Bay sea ice at November 30, 2012. Note the ice forming at the shore along the west coast all the way into James Bay (click to enlarge). Polar bears generally head out onto the ice as soon as it is available (Cherry et al. (2013). In 2012, bears in SH could have returned to the ice at virtually the same time as WH bears.https://polarbearscience.com/wp-content/uploads/2013/07/hudson-bay-breakup-sequence-2013.jpgHudson Bay breakup sequence 2013Figure 4. Breakup progression: Hudson Bay sea ice in summer 2013: June 16 2013 (top), July 16 2013 (bottom). Notice that the last of the ice at July 16 sits in the Southern Hudson Bay subpopulation, which means ‘breakup’ in SHB is not appreciably earlier than in WHB. https://polarbearscience.com/wp-content/uploads/2013/07/southern-hb-labelled.jpgSouthern HB labelledFigure 2. The polar bears of Southern Hudson Bay live between 60⁰ and 52⁰N. Covering 1.14 million km2 the Southern Hudson Bay region is more than twice the size of Western Hudson Bay. This is Fig. 18 from Vongraven and Peacock 2011, with labels added.https://polarbearscience.com/wp-content/uploads/2013/07/southern-hudson-bay-vs-arctic-maps.jpgSouthern Hudson Bay vs Arctic mapsFigure 1. Boundary limits for “the Arctic” (top map) such as the Arctic Circle (dashed line) or the 100C isotherm for July (solid red line) would not include several polar bear subpopulations that live south of these. 2014-10-28T14:16:36+00:00monthlyhttps://polarbearscience.com/2014/10/28/status-of-canadian-polar-bear-populations-has-been-changed-more-good-news/2014-10-28T13:26:05+00:00monthlyhttps://polarbearscience.com/2014/10/20/inuit-resist-government-requests-to-tag-and-collar-polar-bears-in-mclintock-channel/https://polarbearscience.com/wp-content/uploads/2014/10/m_clintock-channel_canada-marked.jpgM_Clintock Channel_Canada markedFigure 2. M’Clintock Channel polar bear subpopulation, circled. Modified from the map of polar bear protected areas provided by <a href="http://www.ec.gc.ca/nature/default.asp?lang=En&n=F77294A3-1" target="_blank">Environment Canada</a>https://polarbearscience.com/wp-content/uploads/2014/10/cambridge-bay_google-maps_polarbearscience.jpgCambridge Bay_Google maps_PolarBearScienceFigure 1. Cambridge Bay, courtesy Google maps.https://polarbearscience.com/wp-content/uploads/2014/10/mclintock_momcubs_gjoa-haven_jane-george-photo_oct-20-2014.jpgMClintock_momcubs_Gjoa Haven_Jane George photo_Oct 20 2014“A female polar bear and her two cubs dash across the ice near Gjoa Haven, where the polar bear hunt has been limited for nearly 15 years. (PHOTO BY JANE GEORGE)” Story <a href="http://www.nunatsiaqonline.ca/stories/article/65674nunavuts_polar_bear_collaring_tagging_plan_shows_gap_between_science/" target="_blank">here</a>, also by Jane George. 2014-10-20T18:53:24+00:00monthlyhttps://polarbearscience.com/2014/10/18/polar-bear-habitat-update-regional-differences-melting-vs-freezing/https://polarbearscience.com/wp-content/uploads/2014/10/masie_all_zoom_v01_2014260_4km.pngmasie_all_zoom_v01_2014260_4kmhttps://polarbearscience.com/wp-content/uploads/2014/10/2014-aug-vs-oct-at-7-3_polarbearscience.jpg2014 Aug vs Oct at 7.3_PolarBearSciencehttps://polarbearscience.com/wp-content/uploads/2014/10/polar-bear-distribution-and-ice-extent_polarbearscience.jpgPolar bear distribution and ice extent_PolarBearScience2014-10-18T17:15:24+00:00monthlyhttps://polarbearscience.com/2014/10/10/declining-polar-bear-weights-and-early-breakup-dates-in-whb-part-i-whats-a-starving-bear/https://polarbearscience.com/wp-content/uploads/2014/10/churchill-polar-bear_mother_with_cub-2009-wikipedia.jpgChurchill polar bear_mother_with_cub 2009 WikipediaFigure 1. Polar bear female with cub, 2009, Churchill, Western Hudson Bay. Wikipedia.https://polarbearscience.com/wp-content/uploads/2014/10/stirling-and-parkinson-2006-fig-2-whb-breakup-1979-to-2004-1983-marked.jpgStirling and Parkinson 2006 fig 2 WHB breakup 1979 to 2004 1983 markedFigure 4. Graph from Stirling and Parkinson (2006:265) depicting breakup dates for Western Hudson Bay from 1979 to 2004, using the old 50% ice cover threshold for “breakup” (30% is now considered the level most pertinent for polar bears). Dashed line is the trend line fit by linear regression. Note that the solid line (added by me) indicates that 1983 had the second-latest breakup date in this period, a fact not mentioned in the paper.1https://polarbearscience.com/wp-content/uploads/2014/10/stirling-and-parkinson-2006-fig-3_marked.jpgStirling and Parkinson 2006 fig 3_markedFigure 2. From Stirling and Parkinson (2006), original caption: “Mean estimated mass of lone (and thus possibly pregnant) adult female polar bears in Western Hudson Bay from 1980 through 2004 (dashed line indicates fit of linear regression).” Highest weights were in 1982, lowest in 2002. The actual number of bears measured each year, or the total number, was not stated. Some additional labels are mine.https://polarbearscience.com/wp-content/uploads/2014/10/hb-polar_bears_2004-wapusk-nat-park-wikipedia.jpgHB Polar_Bears_2004 Wapusk Nat Park WikipediaFigure 1. Polar Bears at Cape Churchill (Wapusk National Park, Manitoba, Canada), in poor condition, taken 15 November 2004 Photo by Ansgar Walk. Wikipedia. 2014-10-10T02:14:41+00:00monthlyhttps://polarbearscience.com/2014/10/06/tracking-polar-bears-in-the-beaufort-sea-september-2014-map/https://polarbearscience.com/wp-content/uploads/2014/10/beaufort-tracking-usgs-bear-movements-september-2014-lg.jpgBeaufort tracking USGS bear-movements-September 2014 lgFigure 1. Original caption: “Movements of 12 [sic] satellite-tagged polar bears for the month of September, 2014. Polar bears were tagged in 2014 on the spring-time sea ice of the southern Beaufort Sea. All twelve [sic] of these bears have satellite collar transmitters. Polar bear satellite telemetry data are shown with AMSR2 remotely-sensed ice coverage for 30 September, 2014. AMSR2 data are made available by the University of Bremen." Click to enlarge. 2014-10-06T15:19:05+00:00monthlyhttps://polarbearscience.com/2014/09/30/natural-selection-helps-polar-bears-adapt-to-sea-ice-variability-which-means-some-bears-die/https://polarbearscience.com/wp-content/uploads/2014/09/sea-ice-extent-1979-2013-september_nsidc-graph-sm.pngSea ice extent 1979-2013 September_NSIDC graph smhttps://polarbearscience.com/wp-content/uploads/2014/09/arctic-ice-reduction_rs-session_hawkins-quotes-stroeve-since-1950s-graph.jpgArctic ice reduction_RS session_Hawkins quotes Stroeve since 1950s graphSlide from presentation by Julienne Stroeve, "Arctic sea ice reduction: the evidence, models, and global impacts" 22 September 2014.https://polarbearscience.com/wp-content/uploads/2014/09/hudson-bay-female-with-cub_wapusk_thorsten-milse_gov-ca.jpgHudson Bay female with cub_Wapusk_Thorsten Milse_Gov CAHudson Bay female with cub_Wapusk_Thorsten Milse_Gov CAhttps://polarbearscience.com/wp-content/uploads/2014/09/polar_bears-poor-condition-at-churchill_2004-11-15_wikipedia.jpgPolar_Bears poor condition at Churchill_2004-11-15_wikipediaPolar bears in poor condition, November 2004 at Churchill, Manitoba.2014-09-30T14:59:22+00:00monthlyhttps://polarbearscience.com/2013/03/06/stirling-and-derochers-sea-ice-trick-omitting-facts-to-make-polar-bears-appear-endangered/https://polarbearscience.com/wp-content/uploads/2013/03/mannsept2012hansen1988slide_at-rutgers.pngMannSept2012Hansen1988slide_at-rutgersFigure 2. Michael Mann’s graph of “observed” global temperatures vs temperatures predicted by NASA scientist James Hansen back in 1988, which conveniently leaves out recent temperatures that do not fit Mann’s story that “recent temperatures are rising as Hansen predicted.” This slide is taken from a presentation given by <a href="http://www.meteo.psu.edu/holocene/public_html/Misc/HSCW_Rutgers_Sep12.pdf" target="_blank">Mann at Rutgers University in September 2012</a> and is the same one given at the AGU meeting in December 2012 and in Victoria, on March 4, 2012, which I saw with my own eyes. See <a href="http://climateaudit.org/2013/03/02/mikes-agu-trick" target="_blank">ClimateAudit</a> for a full discussion.https://polarbearscience.com/wp-content/uploads/2013/03/stirling-and-derocher-2012-figs-2_3.jpgStirling and Derocher 2012 figs 2_3Figure 1. Sea ice graphs from Stirling and Derocher (2012: figs. 2 and 3), which both appear on page 2696. The global sea ice graph (top) is from another author (Stroeve et al. 2007) but has been updated to 2011 and annotated to draw attention to that fact. The graph on the bottom depicts the calculated dates of ice breakup on Hudson Bay, originally from a former Stirling paper (Stirling et al. 1999) and much more relevant to western Hudson Bay polar bears than patterns of global sea ice – but has not been updated. The truncation of the breakup date graph at 2007 conveniently leaves out the late breakup data point for 2009, which would almost certainly flatten the trend line.2014-09-28T17:09:53+00:00monthlyhttps://polarbearscience.com/quote-archive/https://polarbearscience.com/wp-content/uploads/2012/07/sea-ice-extent-canada-2014-sept-18-cis.gifSea ice extent Canada 2014 Sept 18 CIShttps://polarbearscience.com/wp-content/uploads/2012/07/sea-ice-extent-canada-2014-sept-25-cis.gifSea ice extent Canada 2014 Sept 25 CIShttps://polarbearscience.com/wp-content/uploads/2012/07/arctic-ice-death-spiral-gavins-tweet-22-sept-2014.jpgArctic ice death spiral Gavins tweet 22 Sept 2014https://polarbearscience.com/wp-content/uploads/2012/07/stapleton_atkinson_hedman-and-garshelis-2014_whb-aerial-survey_biological-conservation-fig-4.jpgStapleton_Atkinson_Hedman and Garshelis 2014_WHB aerial survey_Biological Conservation fig 4From the paper: “Figure 4. Polar bear counts from annual coastal surveys conducted between August 15 and September 15 from 1970 to 2011 in Western Hudson Bay in the region extending from the Nelson River to the Manitoba–Ontario border (i.e., Area 2; Stirling et al., 2004, Manitoba Conservation unpublished data). The number of bears observed during this survey, including those sighted along the coast and on small islands during the coastal contour transects, is denoted by a gray star.”https://polarbearscience.com/wp-content/uploads/2012/07/stapleton_atkinson_hedman-and-garshelis-2014_whb-aerial-survey_biological-conservation-fig-3.jpgStapleton_Atkinson_Hedman and Garshelis 2014_WHB aerial survey_Biological Conservation fig 3From the paper: “Figure 3. Polar bear sightings recorded during the Western Hudson Bay aerial survey, August, 2011.”https://polarbearscience.com/wp-content/uploads/2012/07/barents-sea_masie_all_2014-may-14_cropped.jpgBarents Sea_masie_all_2014 May 14_croppedhttps://polarbearscience.com/wp-content/uploads/2012/07/barents-sea-svalbard-masie-2014-march-8-labeled.jpgBarents Sea Svalbard MASIE 2014 March 8 labeledhttps://polarbearscience.com/wp-content/uploads/2012/07/polar-bears_lancaster-sound_pbsg.jpgPolar bears_Lancaster Sound_PBSGFigure 1. Lancaster Sound, magenta. Map courtesy Polar Bear Specialist Group, additional labels added.https://polarbearscience.com/wp-content/uploads/2012/07/uscgc_polarsea_heavy-duty-ice-breaker_wikipedia.jpgUSCGC_PolarSea_heavy duty ice breaker_wikipediahttps://polarbearscience.com/wp-content/uploads/2012/07/sea-ice-extent-may-17-2013-nsidc-with-anomaly.pngSea ice extent May 17 2013 NSIDC with anomalySea ice extent for May 17, 2013 with anomaly (orange line is the average). Note the greater than average extent of ice in the Bering Sea, in the top left corner.2014-09-25T14:41:22+00:00weekly0.6https://polarbearscience.com/2014/09/24/in-2009-i-asked-a-polar-bear-biologist-a-challenging-question-at-a-global-warming-workshop/https://polarbearscience.com/wp-content/uploads/2014/09/arctic-sea-ice-2009-vs-2014-nsidc-bist-foxe-basin-marked_polarbearscience.jpgArctic sea ice 2009 vs 2014 NSIDC BIST Foxe Basin marked_PolarBearScience2014-09-25T02:32:20+00:00monthlyhttps://polarbearscience.com/2014/09/23/journalists-still-pushing-the-polar-bears-eat-snow-geese-story-as-if-it-matters/https://polarbearscience.com/wp-content/uploads/2014/09/churchill-polar-bears-eat-snow-geese-and-eggs_ny-times_sept-22-2014.jpgChurchill polar bears eat snow geese and eggs_NY Times_Sept 22 2014Courtesy NY Times, Sept. 22 2014.2014-09-24T04:23:36+00:00monthlyhttps://polarbearscience.com/2014/09/21/polar-bears-are-not-in-peril-due-to-recent-sea-ice-changes/https://polarbearscience.com/wp-content/uploads/2014/09/polar-peril_arctic-ice-cap-in-a-death-spiral_sundaytimes_sept-21-2014_21_nws_20_polar_1096592k.jpgPolar Peril_Arctic ice cap in a death spiral_SundayTimes_Sept 21 2014_21_NWS_20_POLAR_1096592k2014-09-22T14:54:30+00:00monthlyhttps://polarbearscience.com/2012/08/26/is-there-insufficient-ice-for-polar-bears-to-den-offshore/https://polarbearscience.com/wp-content/uploads/2012/08/polar_bear_distribution_pbsg.jpgpolar_bear_distribution_PBSGFigure 1. The 19 subpopulations that make up the global polar bear population. Courtesy IUCN Polar Bear Specialist Group2014-09-21T16:14:38+00:00monthlyhttps://polarbearscience.com/2014/09/18/ian-stirling-now-says-the-polar-bear-that-died-of-climate-change-last-year-was-in-his-prime/https://polarbearscience.com/wp-content/uploads/2014/09/sea-ice-extent-2014-july-12-nsidc.pngSea ice extent 2014 July 12 NSIDChttps://polarbearscience.com/wp-content/uploads/2014/09/sea-ice-extent-2014-aug-5-2014_nsidc.pngSea ice extent 2014 Aug 5 2014_NSIDChttps://polarbearscience.com/wp-content/uploads/2014/09/barents-sea-sea-ice-composite-kongsoya-and-hopen-w-map_polarbearscience.jpgBarents Sea sea ice composite Kongsoya and Hopen w map_PolarBearScienceFigure 2. Fall sea ice cover graphs from <span style="color:#3366ff;"><a href="http://mosj.npolar.no/en/fauna/marine/indicators/polar-bear.html" target="_blank"><span style="color:#3366ff;">Aars and Andersen</span></a></span>, map from Wikipedia. Original caption: “the figure shows the number of days where there were more than 60% sea ice cover around the island of Kongsøya [upper graph, and Hopen, lower graph] in the period Oct 1 - Dec 31 (left axis), and the number of dens the same winter (right axis). Dens are counted either by surveys on the ground (several weeks), or from helicopter (1-2 days). The coverage in the study area has varied between years. Years without surveys have no bar.” [my bold] Click to enlarge.https://polarbearscience.com/wp-content/uploads/2014/09/barents-sea-2014-sept-14-masie-closeup_polarbearscience.jpgBarents Sea 2014 Sept 14 Masie closeup_PolarBearScienceFigure 2. Closeup of the sea ice in the Barents Sea (<span style="color:#3366ff;"><a style="color:#3366ff;" href="http://nsidc.org/data/masie/" target="_blank">according to MASIE</a></span>) at September 14, 2014 with pertinent location labels added.https://polarbearscience.com/wp-content/uploads/2014/09/sea-ice-extent-2014-sept-15-min-nsidc.pngSea ice extent 2014 Sept 15 min NSIDCFigure 1. The National Snow and Ice Data Center (NSIDC) says the September minimum for 2014 is “imminent” and suggests the <a href="http://nsidc.org/arcticseaicenews/2014/09/melt-season-ending/" target="_blank">low may come in at 5.1 million square kilometers </a>(far short of the <a href="https://polarbearscience.com/2012/08/28/record-low-sea-ice-extent-and-what-it-means-for-polar-bears/" target="_blank">4.1 m2km low reached in 2012</a>. About the much larger than average amount of ice around Svalbard and Franz Josef Land, they said only: “As was the case for the beginning of the month, extent remains below average in all sectors of the Arctic except for a region in the Barents Sea, east of Svalbard.” 2014-09-19T19:59:41+00:00monthlyhttps://polarbearscience.com/2014/09/16/polar-bear-attacks-on-humans-an-evolutionary-perspective/https://polarbearscience.com/wp-content/uploads/2014/09/american-black-bear-zoo_ursus_americanusdetail_wikipedia.jpgAmerican Black bear zoo_Ursus_americanusDetail_wikipediahttps://polarbearscience.com/wp-content/uploads/2014/09/polar-bear-grizzly-profiles_composite_sept-15.jpgPolar bear grizzly profiles_composite_Sept 15https://polarbearscience.com/wp-content/uploads/2014/09/bear-behaviour-evolution_polarbearscience_sept-13-20141.jpgBear behaviour evolution_PolarBearScience_Sept 13 2014Figure 3. My summary of the behaviour of bears as it relates to interactions with humans and attacks on people.https://polarbearscience.com/wp-content/uploads/2014/09/bear-fossil-record-summary-plus-temps_polarbearscience_sept-13-20141.jpgBear fossil record summary plus temps_PolarBearScience_Sept 13 2014Figure 2. A summary of bear evolution according to the fossil record, relative to climate change over the last 5 million years or so (based on proxy data from the Vostok ice core in Antarctica). Living species (Asiatic and American black bear, brown bear/grizzly, polar bear) have only existed for 2 million years at most, according to the fossil record; but dates of polar bear and grizzly speciation based on genetic analysis vary widely.https://polarbearscience.com/wp-content/uploads/2014/09/bear-attacks_french_stonie-indians-grizzlies_excerpt.jpgBear Attacks_French_Stonie Indians Grizzlies_excerpthttps://polarbearscience.com/wp-content/uploads/2014/09/daily-mail_inquest-story-july-8-2014.jpgThe camp site where 17 year old Horatio Chapple was mauled to deFigure 1. From a recent article in the DailyMail (July 8 2014) about the inquest into the polar bear attack on a group of Eton schoolboys in Svalbard, Norway: “The camp site where Horatio Chapple was mauled to death. Witness Matthew Burke said: 'The bear reared up and then slammed itself down on to Horatio.'” Read it <a href="http://www.dailymail.co.uk/news/article-2684735/I-tried-gouge-polar-bears-eyes-Trip-leader-Norway-expedition-Eton-schoolboy-tragically-killed-tells-horror-night-time-attack.html#ixzz3B8KHHobL" target="_blank">here</a>. https://polarbearscience.com/wp-content/uploads/2014/09/alaska-pb-usgs_marked.jpgAlaska PB USGS_marked2014-09-16T16:39:19+00:00monthlyhttps://polarbearscience.com/2014/09/10/mclintock-polar-bear-surveys-first-year-plagued-by-fog-in-an-area-thick-with-heavy-ice/https://polarbearscience.com/wp-content/uploads/2014/09/queen_maud_gulf_nunavut_canada_wikipedia.pngQueen_Maud_Gulf,_Nunavut,_Canada_Wikipediahttps://polarbearscience.com/wp-content/uploads/2014/09/m_clintock-channel_canada-marked.jpgM_Clintock Channel_Canada markedhttps://polarbearscience.com/wp-content/uploads/2014/09/polar-bear-with-dart_bear_570_2012-kane-basin_m-dyck-photo.jpgPolar bear with dart_bear_570_2012 Kane Basin_M Dyck photo2014-09-10T03:10:06+00:00monthlyhttps://polarbearscience.com/2014/09/08/tracking-polar-bears-in-the-beaufort-sea-august-2014-map/https://polarbearscience.com/wp-content/uploads/2014/09/beaufort-tracking-usgs-bear-movements-august-2014-lg.jpgBeaufort tracking USGS bear-movements-August-2014 lgFigure 1. Movements of 11 satellite-tagged polar bears for the month of August, 2014. Polar bears were tagged in 2014 on the spring-time sea ice of the southern Beaufort Sea. All eleven of these bears have satellite collar transmitters. Polar bear satellite telemetry data are shown with AMSR2 remotely-sensed ice coverage for 31 August, 2014. AMSR2 data are made available by the University of Bremen (http://www.iup.uni-bremen.de:8084/amsr2/). The land cover is made available by Natural Earth (http://www.naturalearthdata.com/). Click on the above image to enlarge. Original image here. http://alaska.usgs.gov/science/biology/polar_bears/images/bear-movements-August-2014.jpg [the light pink icon appears to be directly under the dark purple or dark pink icon, on the shore of Alaska near Prudhoe Bay]2014-09-08T02:59:03+00:00monthlyhttps://polarbearscience.com/2014/09/04/polar-bears-international-responds-to-the-politics-of-polar-bears/https://polarbearscience.com/wp-content/uploads/2014/09/pbi-facebook-reaction-to-politics-of-polar-bears_sept-4-12pm-pacific.jpgPBI Facebook reaction to Politics of Polar Bears_Sept 4 12PM Pacifichttps://polarbearscience.com/wp-content/uploads/2014/09/pbi-facebook-reaction-to-politics-of-polar-bears_sept-4-3pm-pacific_gau.jpgPBI Facebook reaction to Politics of Polar Bears_Sept 4 3PM Pacific_Gauhttps://polarbearscience.com/wp-content/uploads/2014/09/pbi-facebook-reaction-to-politics-of-polar-bears_sept-4-330pm-pacific-gau-link-to-pbs.jpgPBI Facebook reaction to Politics of Polar Bears_Sept 4 330PM Pacific Gau link to PBShttps://polarbearscience.com/wp-content/uploads/2014/09/pbi-facebook-reaction-to-politics-of-polar-bears_sept-3-2pm-pacific.jpgPBI Facebook reaction to Politics of Polar Bears_Sept 3 2PM Pacific2014-09-05T03:53:37+00:00monthlyhttps://polarbearscience.com/2013/06/16/nsidc-says-the-sea-ice-minimum-in-1964-was-not-different-from-1979-1981-or-2001/https://polarbearscience.com/wp-content/uploads/2013/06/meier-et-al-2013-sea-ice-extent-1964-fig-6.jpgMeier et al 2013 Sea ice extent 1964 Fig 6Figure 2. This is Fig. 6 from the Meier et al. 2013 paper. It shows the September 1964 Arctic sea ice edge pieced together from data from Nimbus I (black dots) and ice charts from Alaska (red dots) and Russia (blue). The pink line is the 1979-2000 median ice edge determined from NSIDC microwave data. The straight grey lines indicate the area they had to fill in, using data from the 1979-2000 Sea Ice Index average. https://polarbearscience.com/wp-content/uploads/2013/06/meier-et-al-2013-sea-ice-extent-1964-fig-7_labelled.jpgMeier et al 2013 Sea ice extent 1964 Fig 7_labelledFigure 1. This is Fig. 7 from the Meier et al. 2013 paper, to which I’ve added labels. Meier et al. call this a “time series of Arctic September sea ice extent.” The estimate for 1964 is the red dot on the far left (with its error bars), which I’ve circled (I also added the red label for 1964 and the black line). Note the Y-axis on the left goes to 3.0 million km², not zero. The solid blue line is the monthly average for September from passive microwave data (1979-2012), and the blue dashed lines are a <em>“three-day average of the high and low range of daily extents during the month.” </em>The 1964 estimate of 6.90 ± 0.3 million km² is just about identical to 1979, 1981, and 2001 and well within the average for 1979-2000. <strong>However, it’s significantly lower than the previous estimate of 8.28 million km² for 1964 made by the UK Hadley Centre in 2003 (Meier et al. 2013:704).</strong>2014-09-04T15:43:43+00:00monthlyhttps://polarbearscience.comdaily1.02026-02-16T19:53:42+00:00