Why are people so concerned about global warming?

After all, dawinism states 'survival of the fittest'. Looks around the american nation... well, at least the 'blubber' will help them float. Perhaps thats why an American spokesman is running around the world informing people of global warming... because he fears being /Left Behind/. After all, if you believe in god, you must believe that man can't do anything to override god's power and thus this is the second comming of the flood... to wash away the unbelievers... those... scientologists. Everyone knows the only real science is Astrology. And why SHOULD we care about earth... we have 8 other planets to inhabit, it'd be wonderful to see some Venitian women, or we could be martians... I wanna be a martian :D. I could go to Mars University and drop out just like Fry. Ooh, and we could solve global warming in the same way... by having a 'nuclear winter'. So we should drop the big one, just like in Randy Newman's "Political Science". And it was both politics and science that caused GW.