[ RadSafe ] Scientist changes mind
Maury Siskel
maurysis at ev1.net
Thu Jul 27 20:54:36 CDT 2006
In order to minimoze distortions, misinterpretations, and around the
bush beating,. here is the straight skinny by Dr. Doran
Maury&Dog
________________
New York Times
July 27, 2006
Op-Ed Contributor
Cold, Hard Facts
By PETER DORAN
Chicago
IN the debate on global warming, the data on the climate of Antarctica
has been distorted, at different times, by both sides. As a polar
researcher caught in the middle, I’d like to set the record straight.
In January 2002, a research paper about Antarctic temperatures, of which
I was the lead author, appeared in the journal Nature. At the time, the
Antarctic Peninsula was warming, and many people assumed that meant the
climate on the entire continent was heating up, as the Arctic was. But
the Antarctic Peninsula represents only about 15 percent of the
continent’s land mass, so it could not tell the whole story of Antarctic
climate. Our paper made the continental picture more clear.
My research colleagues and I found that from 1986 to 2000, one small,
ice-free area of the Antarctic mainland had actually cooled. Our report
also analyzed temperatures for the mainland in such a way as to remove
the influence of the peninsula warming and found that, from 1966 to
2000, more of the continent had cooled than had warmed. Our summary
statement pointed out how the cooling trend posed challenges to models
of Antarctic climate and ecosystem change.
Newspaper and television reports focused on this part of the paper. And
many news and opinion writers linked our study with another bit of polar
research published that month, in Science, showing that part of
Antarctica’s ice sheet had been thickening — and erroneously concluded
that the earth was not warming at all. “Scientific findings run counter
to theory of global warming,” said a headline on an editorial in The San
Diego Union-Tribune. One conservative commentator wrote, “It’s ironic
that two studies suggesting that a new Ice Age may be under way may end
the global warming debate.”
In a rebuttal in The Providence Journal, in Rhode Island, the lead
author of the Science paper and I explained that our studies offered no
evidence that the earth was cooling. But the misinterpretation had
already become legend, and in the four and half years since, it has only
grown.
Our results have been misused as “evidence” against global warming by
Michael Crichton in his novel “State of Fear” and by Ann Coulter in her
latest book, “Godless: The Church of Liberalism.” Search my name on the
Web, and you will find pages of links to everything from climate
discussion groups to Senate policy committee documents — all citing my
2002 study as reason to doubt that the earth is warming. One recent Web
column even put words in my mouth. I have never said that “the
unexpected colder climate in Antarctica may possibly be signaling a
lessening of the current global warming cycle.” I have never thought
such a thing either.
Our study did find that 58 percent of Antarctica cooled from 1966 to
2000. But during that period, the rest of the continent was warming. And
climate models created since our paper was published have suggested a
link between the lack of significant warming in Antarctica and the ozone
hole over that continent. These models, conspicuously missing from the
warming-skeptic literature, suggest that as the ozone hole heals —
thanks to worldwide bans on ozone-destroying chemicals — all of
Antarctica is likely to warm with the rest of the planet. An
inconvenient truth?
Also missing from the skeptics’ arguments is the debate over our
conclusions. Another group of researchers who took a different approach
found no clear cooling trend in Antarctica. We still stand by our
results for the period we analyzed, but unbiased reporting would
acknowledge differences of scientific opinion.
The disappointing thing is that we are even debating the direction of
climate change on this globally important continent. And it may not end
until we have more weather stations on Antarctica and longer-term data
that demonstrate a clear trend.
In the meantime, I would like to remove my name from the list of
scientists who dispute global warming. I know my coauthors would as well.
Peter Doran is an associate professor of earth and environmental
sciences at the University of Illinois at Chicago.
Peter Thomas wrote:
>So did he actually change his mind and were they your words or someone
>else's?
>
>All I heard was someone asking that
>
>
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