A community in northeast Kansas was identified as being the nation's least-polluted city in a recently released list of the nation's dirtiest cities.

An explosion at a US Steel plant near Pittsburgh left two dead and sent at least 10 to hospitals Monday and heavily damaged the sprawling facility, officials said. One worker was found alive ...

The Clairton Coke Works is considered the largest coking operation in North America and one of four major U.S. Steel plants ...

There are more than 15,000 cattle and hog feeding operations in the United States. These operations rear 70% of the country's ...

U.S. counties with hog and cattle feeding operations may be subject to higher air pollution levels, while lacking the health ...

Lush forests and crisp mountain air have drawn people to New York’s Adirondack Mountains for centuries. In the late 1800s, ...