I went to see Al Gore's film, An Inconvenient Truth, on Wednesday night this week and very much enjoyed it. Although his monotone voice got a little old at times, the movie was generally well thought out and captivating. I've never been a big proponent of doom & gloom predictions, but the case here is well presented. The movie is definitely worth watching, but I wonder how much it has to do with a spark for the campaign trail (comments by Time Magazine here and New York Magazine here).
In contrast to the movie's arguments, I would look to Michael Crichton's speech on global warming. Hmm.