05/30/2008 - President Bush's top science advisors issued a comprehensive report Thursday that for the first time endorses what most scientific experts have long asserted: that greenhouse gases from fossil fuel combustion "are very likely the single largest cause" of Earth's warming.
The 271-page report could undercut opposition to the more aggressive provisions of climate legislation, which is to be debated in the Senate next week.
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"This report represents a stark shift in what the administration has been saying since 2001," said Philip Clapp, deputy managing director of the Pew Environment Group.
"For the first time, it has had to admit that global warming is already having clear impacts in the United States, and the impacts are going to get worse even with the most aggressive action to cut emissions," he said.
Read the full article White House Report Backs Climate Change Warnings on the Los Angeles Times' Web site.
Pew is no longer active in this line of work, but for more information, visit the main Pew Campaign on Global Warming page.