Some 30 people who cleaned up the ash have died with ailments that can be linked to exposure to toxic elements of coal ash, and more than 250 are sick or dying.
The Trump administration’s much-anticipated replacement of the Clean Power Plan is unlikely to reduce harmful greenhouse gases by much, and could end up making air quality in parts of Pennsylvania worse.
The UK plans to completely stop burning coal for electricity by 2025. Why is its political reality so different from ours? One answer: climate change isn't up for debate.
Former Kentucky miners described being pressured to cover up coal dust monitors meant to protect them. New research shows a resurgence in black lung disease.
The Pennsylvania Department of Environmental Protection will spend the money on projects around the state that treat polluted mine water, stabilize unsafe mine lands, and put out underground mine fires.