Gore's Global Warming

I Don't get all the hubbub over Al Gore. If his own state of Tennesee had voted for him, he would have been President of the United States. What did they know that all the other Dems didn't?
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So he loses the election, then wins an Emmy, an Oscar, and the Nobel Peace Prize. I saw parts of his environmental film and it seemed like a real political diatribe. More rhetoric than science.
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This whole idea that we have control of the Earth's climate is highly pretentious. The climate is always changing.
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Does Gore think that mankind caused the last ice age ... only a short 10,000 years ago???? I personally prefer global warming over another glacier run.
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Now they have drumming for him to enter the Presidential campaign again.
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I don't get it.