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  Researcher on Climate Is Cleared in Inquiry
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Last EditedRP  Feb 06, 2010 02:30pm
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CategoryInvestigation
AuthorJOHN M. BRODER
MediaNewspaper - New York Times
News DateWednesday, February 3, 2010 08:00:00 PM UTC0:0
DescriptionAn academic board of inquiry has largely cleared a noted Pennsylvania State University climatologist of scientific misconduct, but a second panel will convene to determine whether his behavior undermined public faith in the science of climate change, the university said Wednesday.

While the Pennsylvania State inquiry, conducted by three senior faculty members and administrators, absolved Dr. Mann of the most serious charges against him, it is not likely to silence the controversy over climate science. New questions about the work of the Intergovernmental Panel on Climate Change, to which Dr. Mann was a significant contributor, have arisen since the hacked e-mail messages surfaced last November.

n the best-known message, he refers to a “trick” in a graph he produced a decade ago showing 1,000 years of essentially steady global surface temperatures followed by a sharp upward spike in the 20th century, seemingly corresponding to increased levels of carbon dioxide in the atmosphere. The so-called hockey stick graph has become an icon for environmentalists. It was prominently displayed in a 2001 United Nations report concluding that greenhouse gases from human activities had probably caused most of the warming measured since 1950.
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