Global warming

Is global warming real? Will there be no snow in 2025, or will be all be dead on December 21st 2012 according to the Mayan calender. Is there really going to be a major weather change in the world? I think this all a phony. I think All Gore wrote " The inconvenient truth" just so he can get elected. I think we can all live with just minor changes which I mentioned in "Terrorist" I also think 2012 is phony just like All gore's book. 2012 is just for the publicity of the movie 2012. I mean how can people 100's of years ago exactly tell when the world is going to end. If they did, then why can't scientist today do i. 2012 is also dicourging many students to not go to college, thinking that they are going to die anyways. You see because of these two people and couple of their supporters the whole world has fell into a lie.