Researchers analyzed three years of attendance records for students in the school district directly adjacent to the ...

"What will the merger really mean for U.S. Steel’s 22,000 American workers, including 2,000 here in Minnesota?" columnist Aaron Brown asks.

Children with asthma living near U.S. Steel’s Clairton Coke Works in Allegheny County are significantly more likely to miss ...

Nippon Steel’s $55-a-share acquisition creates the world’s second-largest steelmaker and turns the combined entity into a ...

Nippon Steel Corp. closed its $14.1 billion takeover of United States Steel Corp., bringing to an end an 18-month effort to ...

The leader of the Republican Party, which has governed on and off since the 1980s, promising to get the government off the ...

Researchers found that students with asthma in the Mon Valley were more likely to miss school on days with higher air ...

Even before the political complications that have hampered Nippon Steel’s U.S. gambit, the offer price looked steep. At $55 a share, Nippon Steel will pay a 142% premium to the level U.S. Steel was ...

President Donald Trump has paved the way for Japan-based Nippon Steel to invest in U.S. steel, reversing his own opposition to the deal over national security concerns.

CLAIRTON, Pa. — The Allegheny County Health Department released a statement Tuesday following an issue reported at the Clairton Coke Works plant Monday evening.

CLAIRTON, Pa. — U.S. Steel is responding to a reported breakdown at its Clairton Coke Works plant that sent high levels of pollution into the air. According to the Allegheny County Health ...

Elevated sulfur levels reported at the Clairton Coke Works plant this week have some residents concerned for their health. It comes after the Allegheny County Health Department said repairs were ...