"There's such a wide variation in tax systems around the world, it's difficult to imagine a harmonized CO2 tax that every country agrees to. That's not in the cards in the near term. But the countries that are doing the best job, like Sweden, are already doing both of these. I think that eventually we'll use both of them but we need to get started right away and the cap-and-trade is a proven and effective tool."

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Source: What in the Hell Do They Think Is Causing It?. Interview with John Dickerson, www.slate.com. December 8, 2009.

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Al Gore

Politician

Al Gore is an American politician and environmentalist known for his advocacy on climate change and his influential work, 'An Inconvenient Truth.'

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