Powder River Basin coal mining

Massive coal mines in the Powder River Basin of Wyoming and Montana supply 40% of the U.S. coal supply, but also 14% of its carbon dioxide emissions. The issue is No. 3 on Vermont Law School's Environmental Watch List.

( EcoFlight )

Massive coal mines in the Powder River Basin of Wyoming and Montana supply 40% of the U.S. coal supply, but also 14% of its carbon dioxide emissions. The issue is No. 3 on Vermont Law School's Environmental Watch List.

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Dean Kuipers has written on environmental issues since 1989, including his latest book, and is also the Times Nightlife editor @DeanKuipers

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