The largest underground coal mining company in America said it faces billions of dollars in debt and liabilities, and tough market conditions for coal.
Journalist Beth Gardiner travels to places like China, India and Poland to examine the impacts of toxic air, and the possible solutions for fixing a global health crisis.
A new report finds coal ash pollution is leaking into groundwater at nine power plants around Pennsylvania and over 200 nationwide. One western Pa. site has arsenic 372 times the 'safe' level.