"The celebration of Gores film coincides, not coincidentally, with the much-ballyhooed release of a media summary of a report on global warming by the Intergovernmental Panel on Climate Change."
Actually it's the summary of a report that has not yet been written (it's being amended to fit the summary).
Biased as it is, the IPCC report debunks Gore's crockumentary. It makes much less Apocalyptic predictions. It's the best way to score points in an argument with an alarmist -- because it's written by an "unassailable source" -- the UN. You can get it here:
http://www.ipcc.ch/SPM2feb07.pdf