The Conemaugh Generating Station in New Florence, Pa., is among the nation's coal-fired power plants that face tough new regulations to limit planet-warming greenhouse gas emissions.
Gene J. Puskar/AP
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Fifteen years after the EPA said greenhouse gasses are a danger to public health, the agency finalized rules to limit climate-warming pollution from existing coal and new gas power plants.
The Conemaugh Generating Station in New Florence, Pa., is among the nation's coal-fired power plants that face tough new regulations to limit planet-warming greenhouse gas emissions.
Gene J. Puskar/AP
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