biofuel
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Critical List: Exxon could lose a big Gulf oil lease; alligator fat makes good biofuel
Exxon could lose its lease on one of its biggest oil finds ever.
Bill McKibben explains why Keystone XL protesters will wear Obama '08 buttons.
Isn’t there some place to put a big wind farm that won't threaten endangered species of birds? (Spoiler: No. Or anyway, not South Texas.)