The Clairton Coke Works has seen accidents and emission violations. Will new owner Nippon Steel invest in one of the few ...

What happens when you drop Mentos into Coke—but in oil instead of water? In this experiment, we test the reaction and see if ...

The fatal explosion last week at U.S. Steel’s Pittsburgh-area coal-processing plant has revived debate about its future just as the iconic American company was emerging from a long p ...

A deadly explosion at U.S. Steel’s Clairton Coke Works near Pittsburgh has killed two workers and injured ten others after a ...