Excerpt from article in New York times
“On environmental issues, Mr. Bush appeared
unfamiliar with an administration report delivered to Congress on Wednesday
that indicated that emissions of carbon dioxide and other heat-trapping gases
were the only likely explanation for global warming over the last three
decades. Previously, Mr. Bush and other officials had emphasized uncertainties
in understanding the causes and consequences of global warming.
The new report was signed by Mr. Bush's
secretaries of energy and commerce and his science adviser. Asked why the
administration had changed its position on what causes global warming, Mr. Bush
replied, "Ah, we did? I don't think so."
Scott McClellan, Mr. Bush's press secretary, said
later that the administration was not changing its position on global warming
and that Mr. Bush continued to be guided by continuing research at the National
Academy of Sciences”