Scientists tell Congress that warming evidence is 'overwhelming'

Twenty-five U.S. scientists issued an open letter to Congress today that calls evidence of human-induced global warming "overwhelming" and accuses opponents of emissions curbs of misrepresenting emails among climate scientists hacked from a U.K. research institute.

The letter comes as some Capitol Hill Republicans and climate skeptics are alleging that the controversial emails have undercut the basis for Democratic climate change bills and planned EPA policies.

But the letter today, which includes signatures from eight members of the National Academy of Sciences, claims that opponents of emissions curbs are "misrepresenting both the content and the significance of stolen emails to obscure public understanding of climate science and the scientific process."

"Even without including analyses from the U.K. research center from which the emails were stolen, the body of evidence underlying our understanding of human-caused global warming remains robust," they write.