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November 12, 2008 6:12 PM

U.S. reports huge Alaska energy reserve — and it's not oil

The U.S. Geological Survey reported Wednesday that Alaska's North Slope contains enough frozen methane-and-water crystals known as hydrates to heat 100 million homes for as long as 10 years. Interior Secretary Dirk Kempthorne said the technology exists to exploit the reserves 2,000 feet underground.

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