July 28, 2008 1:25 PM

Using West's oil shale would pump up greenhouse gases

Oil shale in the American West might contain three times the oil of Saudi Arabia, but getting it out of the ground would require much more energy than drilling for conventional oil does, and the result would be more greenhouse-gas emissions. Department of Interior Secretary Dirk Kempthorne announced proposed regulations last week to start a commercial oil-shale program on public lands in Colorado, Utah and Wyoming.

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