i personally do believe in global warming, but i think it can be negated or countered, again with my "volcanoes and them spewing much more carbon than cars" statement, if they spew out so much, why havent we become a boiling gas planet millions of years ago? obviously its probably to do with the trees converting carbon into oxygen (or so it is told, some people dont believe that is so and im not sure about that anymore either). but i also think that trees arent the only thing that can stop it, i think carbon just eventually goes away with time.