The American Association for the Advancement of Science (AAAS) has expressed deep concern about a congressional demand for detailed documentation on the scientific work and professional history of three researchers whose studies suggest temperatures in the Northern Hemisphere are warmer than they have been for a thousand years.
In a July 13 letter to U.S. Rep. Joe Barton, chairman of the House Committee on Energy and Commerce, AAAS CEO Alan I. Leshner said the committees requests to the researchers for information not only on their recent studies but also their lifes work "give the impression of a search for some basis on which to discredit these particular scientists and findings, rather than a search for understanding."
The research by climate scientists Michael Mann of the University of Virginia, Raymond Bradley of the University of Massachusetts and Malcolm Hughes of the University of Arizona provided support for the 2001 finding by a United Nations-sponsored panel that Northern Hemisphere temperatures rose significantly during the last part of the 20th century. Many scientific experts attribute that warming, at least in part, to the release of heat-trapping greenhouse gases by human industrial activity.
Earl Lane | EurekAlert!
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