Tag Archives: Michael Mann

Bioscience article is academic rape: an assertion of power and intimidation

Characterizing a professional, respected scientist as an unqualified vengeful opinion writer is the same kind of power attack as rape. It’s meant to humiliate and intimidate.


I said this as part of a response to a comment at WUWT late yesterday (copied in full below). The picture above shows Steven Amstrup holding polar bear cubs against their will — not for any scientific purpose, just for a photo that shows he can.

Also yesterday, Tom Fuller at ClimateScepticism wrote a hard-hitting critique of the Bioscience article that similarly noted the sexist nature of this harassment and the fact that this is the way Michael Mann and his colleagues behave toward female scientists who cross them or their supporters. He concludes:

“The purpose of these papers is not to communicate.

It is to excommunicate.”

As I said when this paper first came out, this response is all about my reasoned and fully referenced criticisms of Steve Amstrup’s work in particular (although I have taken issue with some of Stirling’s recent work as well).

The evidence that Steve Amstrup is willing to lie in order to publicly degrade me and my work in retribution for not taking everything he says as the gospel truth comes from an article at Motherboard yesterday. In it, Amstrup was quoted as saying:

 “You don’t have to read far in her material to see that it is full of unsubstantiated statements and personal attacks on scientists, using names like eco-terrorists, fraudsters, green terrorists and scammers,” Amstrup said.

I wrote Motherboard and asked for clarification that this was indeed what Amstrup said because I know it to be a lie. Check for yourself using the search function on my blog, it’s easy to do. I have never used any of those terms to refer to anyone, let alone a fellow scientist.

Late in the day, I got this response from the writer of the piece:

“Thank you for your note. A clarification has been added to the article. (my emphasis)

“You don’t have to read far in her material to see that it is full of unsubstantiated statements and personal attacks on scientists, using names like eco-terrorists, fraudsters, green terrorists and scammers,” Amstrup said. In a follow-up email on Friday, Amstrup clarified that these statements to Motherboard were meant to reflect the climate denier community as a whole, rather than Crockford in particular.

Except Amstrup specificially referred to my work. I insisted further clarification was necessary but rather than noting that I had, in fact, never used those terms on my blog, the author added this statement:

“In an email to Motherboard, Crockford denied using those terms on her blog.”

So, the author of the Motherboard piece was willing to take Amstrup’s word for an egregious accusation and when Amstrup was caught in a lie, was unwilling to make that clear. And the media wonder why they have lost the public’s trust.

However, this is all a day late and a dollar short. The cat’s out of the bag regarding Amstrup’s failed predictions. My critique (Crockford 2017) is a thorough scientific exposé of his unsuccessful model (which used assumptions based on Amstrup’s expert opinion) and people in power are taking it seriously. The Bioscience paper says more about its authors than it says about me.


Crockford, S.J. 2017. Testing the hypothesis that routine sea ice coverage of 3-5 mkm2 results in a greater than 30% decline in population size of polar bears (Ursus maritimus). PeerJ Preprints 2 March 2017. Doi: 10.7287/peerj.preprints.2737v3 Open access. https://doi.org/10.7287/peerj.preprints.2737v3

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Polar bears refused to die as predicted and this is how the propheseers respond

The polar bear experts who predicted tens of thousands of polar bears would be dead by now (given the ice conditions since 2007) have found my well-documented criticisms of their failed prophesies have caused them to lose face and credibility with the public.

Fig 3 Sea ice prediction vs reality 2012

Predicted sea ice changes (based on 2004 data) at 2020, 2050, and 2080 that were used in 2007 to predict a 67% 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.

Although the gullible media still pretends to believe the doomsday stories offered by these researchers, the polar bear has fallen as a useful icon for those trying to sell a looming global warming catastrophe to the public.

Here’s what happened: I published my professional criticisms on the failed predictions of the polar bear conservation community in a professional online scientific preprint journal to which any colleague can make a comment, write a review, or ask a question (Crockford 2017). Since its publication in February 2017, not one of the people whose work is referred to in my paper bothered to counter my arguments or write a review.

They ignored me, perhaps hoping the veracity of my arguments would not have to be addressed. But it has not turned out that way. Now, too late, they have chosen a personal attack in the journal BioScience (Harvey et al. 2018 in press).

UPDATE 30 November 2017: See a detailed criticism of this nasty paper here and a shorter one below.

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Fat polar bears [and lots of them] drive public confidence in future of the species

What is causing the death of the polar bear as a climate change icon? Fat bears are part of it, but mostly it’s the fact that polar bear numbers haven’t declined as predicted.

Western Hudson Bay polar bears around Churchill, Manitoba appear mostly in good shape this summer despite the very late freeze-up last fall, including the very fat bear caught on camera below (see more great pictures here):

Churchill_PolarBears_FAT bear post_21 Aug 2017

Not only have we been seeing pictures of fat bears rather than starving bears in recent years but there are lots of them, in Western Hudson Bay and other seasonal sea ice regions where there should be none (if the models had been correct). No wonder polar bears are falling out of favour as an icon for catastrophic human-caused global warming.

[Here’s another picture of a fat bear, this one from Svalbard]

Excuses for why the public is no longer worried about the future of polar bears include a recent claim by climate scientist Michael Mann that “by making polar bears and penguins the poster child for climate change, we have wrongly conveyed that this is some exotic problem far off.

But none of these apologists acknowledge the simple truth: the models that  predicted catastrophe for polar bears due to diminished summer sea ice turned out to be wrong. The sea ice declined but polar bears flourished. Polar bears in seasonal sea ice ecoregions like Western Hudson Bay and Baffin Bay didn’t die off due to climate change as people were told would happen — why should they believe any of the other scare stories?

In and around Churchill, where tourists flock to see Western Hudson Bay polar bears up close and personal, one bear in good condition recently ran through town:

Overall, there have been fewer problems or conflicts this year in Churchill compared to last (after 6 weeks of onshore living), see below.

Polar bears are no longer a useful global warming icon because they are thriving despite diminished sea ice: Churchill area polar bears are a good example.

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Zoos use polar bears to spur action on climate change – not to save them

Media outlets have recently been having collective orgasms over photos and videos of a three month old polar bear cub born at the Columbus Zoo in Ohio, which has again raised the issue of why it is now acceptable for polar bears to be held and bred in captivity.

Zoo bear at Columbus_after birth in November 2015

Newborn polar bear cub ‘Nora’ Columbus Zoo handout

The myth being propagated by zoos and their supporters is that it’s necessary to save polar bears from extinction.

Actually, nothing could be further from the truth – this is all about pressuring people to care about climate change. Polar bears are merely  a marketing tool to spur action on climate change.  That’s not my opinion but the plan put in place in 2012 by the Association of Zoos and Aquariums and Polar Bears International.

Oddly, few animal rights activists are objecting (or at least, not objecting very strenuously) to zoo displays of captive polar bear cubs – obvious money-making draws for zoos – which were so vehemently condemned in the 1970s that most zoos gave them up.

Now, the practice is defended and everyone seems to feel this is the greatest thing since the invention of the telephone. [Update 19 February 2016: courtesy the BBC, we can add Highland Wildlife Park in Scotland to the list of zoos using “we’re saving the polar bears” justification for breeding the bears in captivity]

The surprise is that disgraced climate scientist Michael Mann, promoter of the infamous hockey stick of global temperatures, is involved in all this.

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Stirling and Derocher’s sea ice trick – omitting facts to make polar bears appear endangered

Polar bear biologists Ian Stirling and Andrew Derocher continue to insist that western Hudson Bay (WHB) polar bears are already showing negative effects of reduced sea ice due to global warming. In their 2012 summary paper (Stirling and Derocher 2012), they updated someone else’s graph of global sea ice (to 2011) but used a graph for Hudson Bay (HB) ice breakup dates that ended in 2007. However, we know from other evidence that at least one of those years (2009) would have required extending the scale of the breakup date graph upwards and flattened the slope of the trend line. Updating the HB breakup date graph would not have supported Stirling and Derocher’s premise that polar bears in WHB are starving due to increasingly earlier sea ice breakup, so they simply left the data out (see Fig. 1).

In other fields, this is called fraud.

Is it fraud here? You decide.

I’ve expressed my outrage about this before (here and here), because we know from news reports that in 2009, breakup of Hudson Bay sea ice was unusually late: the Port of Churchill (in WHB) did not open for ship traffic until Aug. 12, a full three weeks later than average (July 21) – and the latest opening of the Port since records began in 1974.

I try not to keep thinking of Stirling and Derocher’s unscientific behaviour but was reminded of it again on Monday (March 4) when I attended a lecture at the University of Victoria given by paleoclimatologist Michael Mann. To my disbelief, Mann tried to argue that global temperatures predicted by NASA scientist James Hansen in 1988 have “closely resembled” actual temperatures since then – by presenting a graph of actual temperatures (observations) that ended in 2005, despite the fact that recent temperatures have not risen at the rate depicted in his graph (see previous post, #8). He did say, as an aside, that “you could argue that if the data were extended out to the present, the line might more closely resemble scenario C [a flat line]” but then continued with his story that observations were matching the ever-rising-temperatures of Hansen’s scenario B (see Figure 2 below).

For both parties – Stirling/Derocher and Mann – the recent data points left off their graphs did not fit their narrative: sea ice in Hudson Bay is not on a steady, precipitous decline and global temperatures have not continued to rise as predicted by Hansen in 1988. The graphs look like science, but they are not.

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