Monthly Archives: August 2014

Must watch – “The Politics of Polar Bears: Tracking the Celebrity Bear”

This powerful, balanced documentary, with a focus on the bears of Western Hudson Bay, can now be watched online. A Canadian Broadcasting Corporation (CBC) production, it includes interviews with polar bear biologists Mitch Taylor (screen-cap below) and Seth Stapleton – juxtaposed with statements from outspoken polar bear conservation advocate Andrew Derocher.

Politics of Polar bears_Mitch Taylor

I was not mentioned by name (making me “she who cannot be named” yet again?) but host Reg Sherren did discuss the contents of the email I received from PBSG chairman Dag Vongraven earlier this summer about their proposed clarification to the global population estimate (and posted here).

Politics of polar bears title

It can be viewed online at “CBC Player,” in its entirety (45 minutes long), without commercials – see it http://www.cbc.ca/player/Shows/Shows/Absolutely%20Canadian/Absolutely%20Manitoba/ID/2499492515/?cmp=rss

I can’t guarantee those outside Canada will be able to view it but I watched it Sunday night (August 31) from British Columbia. It’s well worth the time.

[Aired originally on “Absolutely Manitoba” (Season 2014, Episode 5, Aug 30, 2014), by Reg Sherren. See announcement article here]

[Note: the “Sharon Crockford” interviewed in the film is no relation to me, as far as I know!]

CBC to air “The Politics of Polar Bears” Tomorrow (Saturday, August 30)

polar-bears_CBC news_Aug 28 2014From CBC News (28 August 2014):

The Politics of Polar Bears” airs Saturday, August 30, at 7 p.m. on CBC Manitoba. (CBC)

Which of the following statements do you think is true?

A) Polar bear populations have been in decline for some time
B) Polar bear populations are healthy

The answer may surprise you

“In The Politics of Polar Bears, Reg Sherren will pick his way through the message track to help you decide what is really happening with the largest land carnivore on the planet.”

See the rest here: http://www.cbc.ca/news/canada/manitoba/are-polar-bears-an-endangered-species-1.2747376?cmp=rss
[Includes a short video trailer]

Will we finally see some balance?

UPDATE: Reg Sherren tells me that “A shorter version will air next Tuesday on The National” an hour-long news and current affairs CBC program which can be viewed live online 9-10PM ET.

Reflections on my House of Lords lecture: Healthy polar bears, less than healthy science

Here is an excerpt of an essay I wrote reflecting on the recent (11 June 2014) lecture I gave at the House of Lords in London (“Healthy polar bears, less than healthy science”). The Global Warming Policy Foundation (GWPF) has just published that 14 page essay in its entirety as its 10th such report but you can get a taste of it here.

polarbears-arcticnatlwildliferefuge-suzannemiller-usfws_labeled_sm

My piece addressed the following issues that I talked about in the lecture or which came up afterwards during the question period and discussions later:

•  On what do you base your assertion that polar bear populations are “healthy”?
•  Are the media — or polar bear scientists — to blame for hyping the “polar bears are dying” meme?
•  How significant was the recent dismissal of a petition to force Canada into listing polar bears as ‘threatened with extinction’?
•  What do the recent actions of the Polar Bear Specialist Group say about their commitment to good science?
•  Is my blog helping to “self-correct” the science on polar bears?

The highlighted point is copied in full below. See the full essay here.
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“Polar bears miss the message on global warming” – my article in RANGE Magazine

Here’s an excerpt of my article “Polar bears miss the message on global warming,” just out in the Fall 2014 issue of RANGE Magazine.

AK PB N Shore-USFWS Barrow_labeled Continue reading

Summer sea ice melt and polar bear maternity dens

The yearly sea ice minimum extent is almost upon us, which has recently been the seasonal signal for excitable biologists and their activist groupies to resume their breathless rants about what sea ice loss could mean for polar bears.

Polar bear den_CreditUSFWS_labeled

Never mind that the summer minimum extent reached in September, no matter how low it goes, is pretty much irrelevant to polar bear health and survival. As I’ve discussed before, what’s really important is the presence of not-too-thick ice during the spring, so they can catch lots of young seals and put on lots of fat.

But to a lesser degree, the extent at mid-to-late summer is important because this is when pregnant females that prefer to make their maternity dens on shore are looking for good places to spend the winter.

So the topic for today is this: how much does the extent of ice at the height of summer dictate where polar bear females make their winter dens?
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Foxe Basin and Hudson Bay have more than average polar bear hunting habitat

This is shaping up to be a banner year for polar bears in Foxe Basin (central Canada), with more ice in this region than there’s been since 1992. Hudson Bay still has a large patch of thick first year ice, more than there has been at this date since 2009, which was a late breakup year.

Hudson Bay Foxe Basin ice map Aug 7 2014 labeled_sm

Ice maps and charts below tell the story.
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Dodgy new clarification of global polar bear population estimate (yes, another)

In an attempt to get themselves out of a mess of their own making, the IUCN Polar Bear Specialist Group (PBSG) has just dug their hole even deeper.

pbsg logo

Although the minutes of their 2014 June meeting (pdf here) contained this statement…

K. Laidre summarized the need for the PBSG to do a better job of communicating accurate and balanced science about polar bears.” Pg. 28

…you might conclude, after reading the rest of this post, that polar bear specialists don’t really understand what these terms mean.

Due to the flack they have been catching over their global polar bear population estimates, the PBSG determined that another clarification was in order. [As opposed to the first clarification, a footnote the group planned to insert in an upcoming report, which PBSG chairman Dag Vongraven sent to me in May)]

The new clarification, apparently co-authored by Steve Amstrup and Andy Derocher (PBSG 17 minutes, pg. 33 – copied below), makes an astonishingly bold claim that I can easily show is untrue.

PBSG 17 minutes_global pop estimate explanation action p33 to post Continue reading