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Monday, August 18, 2008
The Hockey Stick Debate as a Matter of Science Policy

By: Roger Pielke, Jr., Prometheus Blog

Here at Prometheus we have for years closely followed the controversy over the so-called temperature reconstruction “hockey stick.” So it was with some interest that I saw this blog post linked from Climate Audit, apparently written by a Scottish libertarian blogger called Bishop Hill. Hill writes of the recent years of the hockey stick debate: “The story is a remarkable indictment of the corruption and cynicism that is rife among climate scientists, and I’m going to try to tell it in layman’s language so that the average blog reader can understand it.”

And indeed Hill’s post is well-written, and accurate as far as I can tell. Of course, such stories have as many sides as there are participants, so if any of those involved including Steve McIntyre or Caspar Ammann would like to post or comment here, they’d be welcome.

Long-time readers will recall that in the fall of 2005 we issued a challenge to Steve McIntyre and Michael Mann, the lead protagonists on either side of the debate, to explain to us policy-oriented folks why we should care about their very public squabbling.

Steve McIntyre took us up on our challenge (as did his collaborator Ross McKitrick). Michael Mann declined the invitation. McIntyre explained that the debate over the hockey stick mattered not because of its direct relevance to the debate over what to do about global warming, but because of matters of what we call around here “science policy"- peer review, public confidence in science, and simply getting this right rather than wrong. McIntyre explained that if he were the head of the IPCC,

“I would be particularly angry at being placed in a position where I used this logo and wasn’t fully informed about adverse information pertaining to it. I also wouldn’t be leaving it up to some probably adversarial committee like the Barton Committee to sort this out. I’d be all over the problem so that my community, the community of climate scientists, was not further embarrassed and so that government institutions would be able to rely confidently on the opinions of IPCC.”

In response to the Bishop Hill piece McIntyre writes: “There’s a definite foolhardiness and contemptuousness of the public by the IPCC and, in particular, the core of the Hockey Team.  Every step of the process has been publicly documented. You’d think that they’d have been extra diligent in their reviewing. Instead, what we see is one thing botched after another and one sly manouevre after another. If this is representative of how climate articles are written and how climate peer reviewing is done, what a pathetic performance.”

I agree. Having collaborated a bit with Steve McIntyre in recent years, and seen how the community reacts to him in the peer review process, I have seen some of the frothing and irrationality that he stirs. Further, as a long-time observer of this debate, how the more vocal climate science community has dealt with the criticisms of the Hockey Stick and McIntyre’s determined efforts is really an embarrassment to all of the hard-working and brilliant scientists who work out of the limelight trying to advance knowledge in a rigorous manner. The problem is that the behavior of the few reflects upon the community as a whole.

McIntyre may never get the recognition that he deserves from the climate science community (though some, like Peter Webster and Judy Curry have shown leadership by recognizing Steve’s legitimacy, and apparently taken their lumps for it), but within science policy circles it is becoming increasingly clear that has made a significant contribution to upholding the integrity of climate science, and for this he should be applauded.

See more and take not of comments #2 by Willis Eschenbach and others including Pat Michaels #16 here.

Posted on 08/18 at 04:55 PM
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