I really don't know if there is really such a thing called "Global Warming". From what my science teacher said (he would never lie to his students), that the earth goes into phases. There's a warming up phase and there's a cooling down phase. Right now apprentaly, the earth is in it's warming up phase.

Though I hardly ever pay attention to the news. In my american studies class, my teacher started to freak out that the ice caps are melting away and that polar bears are going to be extinct at the end of the century. Heh, I should pay attention to the news more often. :/