. . "i myself dont believe that HUMANS are contributing to it, its a natural phemominon, and besides, the excess amount of Co2 can do diffrent things, what killed the dinosaurs? a meteor crashing into earth, a HUGE amount of dust, co2 and other chemicals crowded into the sky and blocked out the sun killing the plants and everyhting else, blah blah blah. whos to say it wont make earth COOLER? all im say" . .