text: Many wonder how our air becomes polluted in the first place. It becomes polluted by something called the green house affect. The green house affect is the theory on how our air is polluted and why smog and contaminated air is all around us. The same way a green house works, by keeping in natural gasses (maybe even polluted ones), plus the solar rays from the ball of fire we call our sun, produces, is the same way that our multi-layed atmosphere works. The UV rays shine down sending heat, and the mixture of pollution from cars and factories, creates a barrier that traps in horrible cemicals and intoxicating fumes. Thus suffocating us on a daily basis. Until someone will do something about.