Lord of the Strings appears to be the only informed person here. I earned a degree in biology in 2000. During college I took plenty of earth sciences courses and chemistry. What I found was that professors of actual science were skeptical about the claims of the environmentalists. It was the political science teachers(a notorious haven for socialists and anti-capitalists) who knew nothing about real science who claimed global warming was real and man's fault. Real scientists realize that earth's climate is dynamic and has been changing since the beginning. (e.g. the North Pole was at one time a tropical environment) It is my belief that environmentalism and the "global warming" movement(remember it was "global cooling" in the late 70's and early 80's that the environmentalists predicted http://www.junkscience.com/apr05/coolingworld.pdf) are the home of displaced socialists and other collectivists. Gorbachev, former Soviet dictator, is now the head of the Green Cross which is a radical environmentalist group. Also notice that the "plans" that they come up with - like Kyoto - exempt some of the largest polluters like China and India and punish countries like Canada and the US the worst. Ironically it is countries like the US that are coming up with the cleanest technologies for energy. As for algore, check out this link and see what you think. http://www.junkscience.com/Greenhouse/