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There's debates on global warming.
Some say it is global warming and its irreversible. Some say its just positioning of the Earth. But there is not actual proof, just evidence you would assume is proof of global warming, and theories.
The holes in the ozone are from years ago. We're actually far less polutant(sp?) than we used to be, at least in developed countries. Can't say that for underdeveloped countries.
There are many professionals (I wouldn't consider Bush a professional) who say different things.
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