The problem with everyone claiming global warming doesn't exist is because they don't understand how it works, much like the big bang. It's not instant, it's VERY slow, you won't notice it. Just because you can't actively watch it doesn't mean it's not happening (Hint: It's such a gradual change it exceeds human lifetime). We have scientific proof of the greenhouse effect, in-fact, the green house effect is what makes Venus such an impossibly hot planet. Global Warming is in the same boat as evolution. You idiots refute it because you don't know stuff about it and think that makes you capable of determining its validity ("EVOLUTION IS A THEORY IT IS NOT TRUE YOU CNT PROVE IT NO PROF HURDURERUERURRU"). You are not scientists, you do not understand the facts, you dismiss entire arguments based on biased belief systems. Shut the forget up. I'm sick of you autistic handicaps arguing against something theoretical for absolutely no loving reason whatsoever.