Nobody here denies that global warming exists. In fact, if you see An Inconvenient Truth, you will note the large graph of data that Al points to in his lecture that the earth has gone through numerous cycles of cooling and warming over the last 650,000 years. Unfortunately, Al focuses only on the last few years in making his leap of faith theory that says man is the primary cause of THIS cycle of warming which has only been going on for a few seconds (relatively speaking in geologic terms). He also fails to point out that we are still way, way below the zenith of temperatures that have occurred numerous times over the last 650,000 years. He also fails to point out that when the temperatures were much higher in the past, man wasn't around to cause this warming. Maybe, just maybe, you should consider that what is happening today is simply part of the natural cycle. Skunk is right, this is a political issue, with not much science to back it up.