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Report called for by Congress says humans mostly responsible for global warming

Published: Thursday June 22, 2006

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The Earth is the hottest it has been in at least 400 years, probably even longer, a new report out today will reveal.

The Associated Press has prepped this article to run at 11am ET. Full story now available here.


The National Academy of Sciences, reaching that conclusion in a broad review of scientific work requested by Congress, reported Thursday that the "recent warmth is unprecedented for at least the last 400 years and potentially the last several millennia."

A panel of top climate scientists told lawmakers that the Earth is running a fever and that "human activities are responsible for much of the recent warming." Their 155-page report said average global surface temperatures in the Northern Hemisphere rose about 1 degree during the 20th century.

The report was requested in November by the chairman of the House Science Committee, Rep. Sherwood Boehlert, R-N.Y., to address naysayers who question whether global warming is a major threat.