Tag Archives: global warming

Polar bear habitat update: ice forming along Hudson Bay, Wrangel & Franz Josef Islands surrounded

Western Hudson Bay polar bears near Churchill will be able to leave shore within days, at most one week later than in the 1980s, although you wouldn’t know that from the climate change activists at Polar Bears International who have spent the last week promoting some egregiously false and misleading statements. PBI controls the narrative surrounding Western Hudson Bay bears through their partnership with the biggest polar bear tourist outfits in Churchill and online.

Yesterday, it was “See how the climate crisis is changing their world”.

Developing no slower than it did in 2007 (16 years of no change), Arctic sea ice is providing polar bears in southern regions with their second-most critical feeding opportunities while in areas like Wrangel Island and Franz Josef Land, they now have easy access to and from important summer refuge/maternity denning islands. And contrary to predictions of increased ‘conflict’ between polar bears and people around Churchill, there have been fewer problem bear reports there in recent years, this year included. In other words, there is no ‘climate crisis’ for polar bears, even in Western Hudson Bay, and recent models of a dire future for polar bears are based on totally implausible worst-case climate scenarios. Sea ice loss since 1979 has been so gradual that polar bears have been able to adapt, either through natural selection or changes in behaviour.

UPDATE 12 November 2022. One of the independents on the ground near Churchill had this to say about the bears and freeze-up conditions this year:

“Bears started leaving on November 10; conservation emptied the jail on the 10th as well.”

[the 10th was the day this post was originally published; ‘the jail’ is the Churchill Polar Bear Alert Program’s ‘holding facility’, see report below]. This information suggests the average date for bears leaving shore will likely turn out to be 12-14 November, again earlier than the average for the 1980s (16 Nov +/- 5 days). There may still be a few bears on the shore of Wapusk National Park that seem to be in no hurry to leave, but a few stragglers doesn’t mean there isn’t ice available for hunting.

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Allow children to learn about the Arctic without terrifying them with fantasies of climate catastrophe

This is a reminder that I have written three Arctic animal picture books, a polar bear ecology reference book, an Arctic ecology teaching guide (free) & a polar bear attack thriller suitable for teens, all of which let kids be kids.

In contrast to a book reviewer at the New York Times (30 October 2020), see image above:

Two new picture books and a novel for young readers place children at the center of climate calamity. Fittingly, they are stories of homes under threat; home, after all, is the thing climate change stalks, be it a house, a community or a livable planet. Each book offers its own lessons on how to cope with life under the monster we’ve created. The novel even shows how kids can help slay it.

No child needs this. Children need to be allowed to learn without being used as pawns in an adult political battle. Activist authors suggesting that climate change is a predator waiting to ‘stalk’ children’s homes and communities through floods and wildfires is reprehensible, not only because it isn’t true. Kids don’t need a ‘mini-primer on climate change’. Adults should fight their own battles and leave the kids alone. List of my books and links below and in the sidebar.

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Watch me talk polar bears with Tom Nelson

Recorded 12 August 2022, here’s the full podcast (his ‘#5’), some short snippets of this can be found on Tom’s Twitter feed and a list of his podcasts is here (you may notice I’ve let my curls come out to play!).

Polar bear habitat in Canada over the last decade: spring sea ice not in a death spiral

Sea ice extent in Canada at the height of Arctic spring over the last 10 years has been more like a gentle roller coaster than a death spiral. See for yourself.

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Constant dire predictions have been an attempt to counter effective criticism of polar bears as AGW icon says outgoing PGSG chair

In an unexpected statement, Dag Vongraven (the out-going Chairman of the Polar Bear Specialist Group) suggests that much of the incessant dire warnings of doom about the future of polar bears from PBSG members has been a counter-measure to offset the effective efforts by myself and others to expose the flawed rhetoric this group promotes.

You may remember Vongraven, who in 2014 famously sent me an email alerting me to a PBSG statement that later came back to bite them (in part because it was included in a CBC documentary called The Politics of Polar Bears later that year, see below):

It is important to realize that this range [i.e. their polar bear population estimate] never has been an estimate of total abundance in a scientific sense, but simply a qualified guess given to satisfy public demand.

Will this be another? You be the judge.

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Emperor penguin numbers rise as biologists petition for IUCN Red List upgrade

Emperor penguin (Aptenodytes fosteri) populations in 2019 were found to have grown by up to 10% since 2009 – to as many as 282,150 breeding pairs (up from about 256,500) out of a total population of over 600,000 birds (Fretwell et al. 2012; Fretwell and Trathan 2020; Trathan et al. 2020) – despite a loss of thousands of chicks in 2016 when an ice shelf collapsed. Yet, biologists studying this species are currently petitioning the IUCN to upgrade emperor penguins to ‘Vulnerable’ (Trathan et al. 2020), based on models that use the implausible and extreme RCP8.5 ‘worse case climate change scenario (e.g. Hausfather and Peters 2020) that polar bear biologists find so compelling. Not surprisingly, their unscientific models suggest emperor penguins could be close to extinction by 2100 under these unlikely conditions – but if we reduce CO2 emissions via political policy, the penguins will be saved!

Emperor penguins NOAA_Wikipedia 2006 med

Surprisingly, these researchers are going ahead with their petition to have emperor penguins uplisted despite the population increase and the reservations their colleagues expressed in 2018 about using climate change predictions to arrive at a classification of ‘Near Threatened’ for the IUCN Red List assessment (Birdlife International 2018), as noted below in their ‘justification’:

This species is listed as Near Threatened because it is projected to undergo a moderately rapid population decline over the next three generations owing to the projected effects of climate change. However, it should be noted that there is considerable uncertainty over future climatic changes and how these will impact the species.

Like polar bear biologists, some emperor penguin biologists just won’t give up on the prediction they developed back in the mid-2000s that climate change is sure to drive this species to near extinction. For example, Jenouvrier et al. (2009) calculated that there was at least a 36% chance of a 95% or more decline in emperor penguins by 2100 (what they called a “quasi-extinction”) due to changes in sea ice distribution. They suggested a decline of this magnitude would entail a fall from about 6,000 breeding pairs to about 400 in a single colony.  The newest model (Jenouvrier et al. 2020) similarly uses the RCP8.5 ‘worse case’ scenario to predict near-extinction by 2100, as their ‘graphic abstract’ below shows.

Jenouvrier et al 2020 emperor penguin pop decline graphic abstract

This group are also recommending that “the species is listed by the Antarctic Treaty as an Antarctic Specially Protected Species” that would require a Species Action Plan (Trathan et al. 2020). And as co-author Peter Fretwell told the BBC last fall (9 October 2019):

“Everything we know – all the experts, all the models – tells us that Emperors are going to be in real trouble. We need to pull out all the stops to help them. That’s going to be hard because we know the one thing that’s really going to save them is stabilisation of the global climate.”

Sounds like something a polar bear specialist would say. Except that for polar bears, the catastrophe they keep predicting just won’t happen despite the fact that summer Arctic sea ice has been declining faster than anyone expected – so far, an almost 50% decline in ice has already happened yet global polar bear numbers keep slowly increasing (Crockford 2019; 2020).

Book graphics for promotion updated March 2020

I’d suggest that using far-fetched ‘worse case’ scenario predictions to propose an unlikely but scary-sounding future catastrophe isn’t likely to work any better for emperor penguins than it has done for polar bears, especially when the animals keep thriving.

However, some of the papers listed below are open access, so if you’re interested in more details I suggest you have a look. If you’d like a copy of the modelling paper (Jenouvrier et al. 2020), contact me and I’ll send it along. You’ll find more on the emperor penguin conservation issue in this essay by biologist Jim Steele.


BirdLife International. 2018. Aptenodytes forsteri. The IUCN Red List of Threatened Species 2018: e.T22697752A132600320. Downloaded on 07 August 2020. https://www.iucnredlist.org/species/22697752/132600320

Crockford, S.J. 2019. The Polar Bear Catastrophe That Never Happened. Global Warming Policy Foundation, London. Available in paperback and ebook formats.

Crockford, S.J. 2020. State of the Polar Bear Report 2019. Global Warming Policy Foundation Report 39, London. pdf here.

Fretwell, P.T., LaRue, M.A., Morin, P., Kooyman, G.L., Wienecke, B., Ratcliffe, N., Fox, A.J., Fleming, A.H., Porter, C. and Trathan, P.N. 2012. An emperor penguin population estimate: the first global, synoptic survey of a species from space. PLoS One 7: e33751 [open access] doi: 10.1371/journal.pone.0033751.

Fretwell, P.T. and Trathan, P.N. 2020. Discovery of new colonies by Sentinel2 reveals good and bad news for emperor penguins. Remote Sensing in Ecology and Conservation [open access], in press. https://doi.org/10.1002/rse2.176

Hausfather, Z. and Peters, G.P. 2020. Emissions – the ‘business as usual’ story is misleading [“Stop using the worst-case scenario for climate warming as the most likely outcome — more-realistic baselines make for better policy”]. Nature 577: 618-620

Jenouvrier, S., Caswell, H., Barbraud, C., Holland, M., Stroeve, J. and Weimerskirch, H. 2009. Demographic models and IPCC climate projections predict the decline of an emperor penguin population. Proceedings of the National Academy of Science USA 106: 1844-1847.

Jenouvrier, S. et al. 2020. The Paris Agreement objectives will likely halt future declines of emperor penguins. Global Change Biology 26(3): 1170-1184. [paywalled] https://onlinelibrary.wiley.com/doi/abs/10.1111/gcb.14864

Trathan, P.N. and others, including Fretwell, P. T. 2020. The emperor penguin – Vulnerable to projected rates of warming and sea ice loss. Biological Conservation 241:108216. [open access] https://doi.org/10.1016/j.biocon.2019.108216

Polar Bear Scare Unmasked: The Saga of a Toppled Global Warming Icon [another look]

For almost twenty years, , we’ve endured the shrill media headlines, the hyperbole from conservation organizations, and the simplistic platitudes from scientists as summer sea ice declined dramatically while polar bear numbers rose. This video of mine from two years ago, which deconstructs the scare, is worth another look as International Polar Bear Day approaches with its associated ‘save the polar bear’ rhetoric.

No climate emergency for polar bears or walrus means no climate emergency period

We are told the Arctic is warming twice as fast as anywhere else in the world, yet as the internet reverberates with shrill, almost-the-lowest-ice-extent-ever stories, polar bears, Pacific walrus, and the most common ice seal species (ringed and bearded seals, as well as harp seals), are all thriving.  Two new videos published by the GWPF on polar bears and walrus confront this conundrum and the conclusion is clear: if there is no climate emergency for polar bears, there is no climate emergency anywhere.


Walruses climbing cliffs and falling off them are natural events: 1994 video from Alaska

US Fish and Wildlife officials in 1994 explain walruses falling to their deaths from a cliff at Cape Pierce in the southern Bering Sea (a haulout for adult males during the ice-free season). Explanation? Overcrowding (too many walruses)!

Hype from the Netflix/Attenborough ‘climate change is gonna destroy the world’ fearmongers earlier this year notwithstanding – or the media this summer trying to stir up climate change fever – the US Fish and Wildlife Service determined in October 2017 that the Pacific walrus is not being harmed by climate change and is not likely to be harmed within the foreseeable future (USFWS 2017). The IUCN Red List (2015) lists the Pacific walrus as ‘data deficient.

Large herds onshore are a sign of population health, not climate change, and walruses have come ashore in the Chukchi Sea during the ice-free season in summer and/or fall for more than 100 years (Crockford 2014; Fischbach et al. 2016; Lowrey 1985). Those are the relevant scientific facts.


Crockford, S. J. 2014a. On the Beach: Walrus Haulouts are Nothing New. Global Warming Policy Foundation Briefing Paper 11. Pdf herehttp://www.thegwpf.org/susan-crockford-on-the-beach-2/

Crockford, S. J. 2014b.The Walrus Fuss: Walrus Haulouts are Nothing New https://www.youtube.com/watch?v=cwaAwsS2OOY  23 Oct 2014. [15,141 views at 31 Aug 2019]

Fischbach, A.S., Kochnev, A.A., Garlich-Miller, J.L., and Jay, C.V. 2016. Pacific walrus coastal haulout database, 1852–2016—Background report: U.S. Geological Survey Open-File Report 2016–1108. http://dx.doi.org/10.3133/ofr20161108. The online database is found here.

Lowry, L. 1985. “Pacific Walrus – Boom or Bust?” Alaska Fish & Game Magazine July/August: 2-5. pdf here.

MacCracken, J.G., Beatty, W.S., Garlich-Miller, J.L., Kissling, M.L and Snyder, J.A. 2017. Final Species Status Assessment for the Pacific Walrus (Odobenus rosmarus divergens), May 2017 (Version 1.0). US Fish & Wildlife Service, Anchorage, AK. Pdf here (8.6 mb).

USFWS 2017. “Endangered and Threatened Wildlife and Plants; 12-Month Findings on Petitions to List 25 Species as Endangered or Threatened Species” [pdf] 4 October


Video exposé of the groundless Netflix bid to elevate walrus to climate change icon

Last month, Netflix and WWF released a collaborative nature documentary that contained an egregiously: that Pacific walrus are being forced ashore by global warming where they suffer staggering population losses. But this is a story the film producers and WWF concocted for their own purposes, not a statement supported by scientific fact.

Video title screen

Over the last month, pointed questions have been asked about what really happened in Siberia while the film crew was there – and what didn’t. Scientific documents support the conclusion that Pacific walrus are currently thriving, have not been harmed by recent sea ice losses, and are not expected to be harmed in the foreseeable future, see here, here, here, and here.  This new video explains it all.

Netflix, Attenborough and cliff-falling walruses: The making of a false climate icon

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