U.S. Steel on Friday pinned blame for the deadly explosion Monday at the Clairton Coke Works on a valve failure that led to coke oven gas igniting, according to the company’s preliminary findings.

DTE Energy is in court over harmful carbon pollution from its coke battery facility on Zug Island, Michigan, per Planet ...

The U.S. EPA is walking back its rule that would have extended deadlines for facilities to comply with stricter air pollution standards.

BOZEMAN (AP) Three health and environmental groups filed an appeal Tuesday challenging a state permit allowing Holnam Inc. s cement plant at Trident to burn a higher percent-age of dirtier fuel. The ...