Ocho, the young eagle who recently fledged the nest at U.S. Steel's Irvin Plant in West Mifflin, was captured on camera ...

Remember when Pittsburgh was just that gritty steel town your grandparents talked about? Those days are long gone. The city ...

Local environmental groups in Western Pennsylvania say Nippon Steel’s purchase of U.S. Steel should lead to cleaner ...

The state-of-the-art sheet mill would produce about 3 million tons of steel per year and send it throughout the Midwest and Northeast, where the Pittsburgh region is a day's drive from either.

Pittsburgh is one of the Eastern United States' former industrial powerhouses that has been successful in reinventing itself. Previously known for its now-shuttered steel mills, it has become a ...

Another fire at U.S. Steel’s massive coke plant outside Pittsburgh knocked a key pollution control system offline Monday, triggering a health warning as officials monitored the air around the ...

PITTSBURGH—Emissions from the nation’s largest coke plant, 15 miles south of Pittsburgh, have dropped sharply after a surge in pollution earlier this year prompted health warnings and ...