The release of e-mails suggesting that scientists may have distorted climate change data just as the world's attention turns to Copenhagen has turned a rare opportunity for substantive debate into a media storm reminiscent of a middle school food fight. Even before “Climategate,” the naysayers were having an impact: An October survey by the Pew Research Center found the number of Americans who believe there is solid evidence of climate change has dropped from 71 percent in April 2008 to ...