Bush, of course, reversed a campaign pledge to cut carbon dioxide emissions from fossil fuel burning plants, citing a possible national energy crisis as the reason for his flip-flop.

But don't look for the White House to suddenly embrace global warming. White House press secretary Ari Fleischer said the jury is stil out. "Yes, temperatures (are) rising. It is uncertain what has caused it and what the solutions might be," he said.

"Here's a hint, Ari" writes Plastic.com poster "Bat Guano." "CARS! GAS! BURNING! COAL! OIL! BURNING! SMOKE! SUVS! POWER PLANTS! BURNING! FIRE! FACTORIES! BURNING! BURNING! BURNING!"

One Lucianne.com poster chimed in with more scientific wisdom. "The earth is flat. Leeches and bleeding cure disease. Sacrificing a virgin will bring good harvests. The globe is warming and it's our fault."

Others in the thread were similarly unmoved. "Back in the 1970's, these same pointy-headed 'scientists' were telling us that we were heading for another ice-age because polution was going to block out Mr. Sun. What made them change their minds?"

Sen. John Kerry, D-Mass., told the Associated Press that the academy report was unnecessary and "underscores the lack of leadership" by Bush on global warming. "The science on this has been strong enough that presidents and foreign ministers of other countries have moved on this for years."

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