Apparently, it's getting easier to be green -- Kermit the Frog's lament notwithstanding. Whether or not you agree that the world has passed the point where there's less crude oil in the ground than we've extracted -- i.e., so-called "peak oil" -- or that global warming accelerated by the burning of fossil fuels over the last 150 years is a fact, the "green revolution" has begun. Skeptics may abound, but when the petroleum industry itself begins talking about the need to develop ...

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