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FILE - This Aug. 22, 2006, file photo, shows an aerial view of a coal mine in northeast Wyoming near Gillette, Wyo. Public enemy No. 1 for climate change and no longer the fossil fuel that utilities prefer to generate electricity, coal has few allies these days but still has friends in Wyoming. From burning the stuff underground to hosting a contest to find profitable uses for power plant emissions, the top coal-producing state is desperate to bring about a coal savior. (AP Photo/Nati Harnik, Fi
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FILE - This Aug. 22, 2006, file photo, shows an aerial view of a coal mine in northeast Wyoming near Gillette, Wyo. Public enemy No. 1 for climate change and no longer the fossil fuel that utilities prefer to generate electricity, coal has few allies these days but still has friends in Wyoming. From burning the stuff underground to hosting a contest to find profitable uses for power plant emissions, the top coal-producing state is desperate to bring about a coal savior. (AP Photo/Nati Harnik, Fi Zdroj: Nati Harnik