Jason Kottke sums up the debate nicely:
The supposed debate among scientists over climate change has melted faster than the polar ice caps. National Science Board member James Lawrence Powell looked at all the related peer-reviewed scientific papers over the last several years. Twenty-four of those articles rejected the notion of climate change. Out of 14,000.
So let this be clear: There is no scientific controversy over this. Climate change denial is purely, 100 percent made-up political and corporate-sponsored crap.