A new report requested by Congress from the U.S. National Academies of Science has confirmed that the last few decades have been the warmest of the past 400 years, and that the warming is almost certainly due to human activity.
George Bush probably has his fingers in his ears and is singing "lalalalalalala" as loud as he can - especially since his administration's climate change science program also released a report last month saying that "the observed patterns of change over the past 50 years cannot be explained by natural processes alone".
Hopefully these two reports will put some pressure on Washington to do something about the emissions that cause climate change. Or at least change up the political climate some.
'Cuz you KNOW that is Al Gore runs again and IF he gest in he pretty much HAS to do something about the US's greenhouse gas emissions. After he made that lovely documentary an' all.