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06-05-2008, 04:04 PM
Well, personally I think that the cause for Global Warming could be many things, but here is one that I rarely see anyone mention.
In the 70's CFC's (chlorofluorocarbons) were widely used in refrigerators and spray canisters. CFC's were discovered to break apart ozone molecules in the stratosphere.
CFC molecules take 10-20 years to break down. One CFC molecule can break down 100,000 Ozone molecules.
Also in the United States we do not have very good transportation systems such as bussing, and trains. Americans also tend to drive more because of this.
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