Inside the Carnegie Library in Braddock, Pennsylvania, Ron Ferchak explained what a hot strip mill does. Imagine an assembly line, three football fields long. You put in a steel slab on one 40 feet ...

Inside the Carnegie Library in Braddock, Pennsylvania, Ron Ferchak explained what a hot strip mill does. Imagine an assembly line, three football fields long. You put in a steel slab on one 40 feet ...

A Texas-based energy company wants to expand a natural gas processing facility in western Pennsylvania that has had multiple environmental violations since opening in 2020. The Pennsylvania Department ...

U.S. Steel is investing big money to modernize a mill in the Pittsburgh area. Some are worried about continued air pollution from the plant, while others in the area are excited about its economic ...

Experts are working to stop the spread of the wavyleaf basketgrass, but they say public awareness and participation in an upcoming event are critical to protecting the state's forests.

A federal appeals court upheld a Biden-era air quality standard for soot. Allegheny County and other areas in PA could be out of compliance with the new standard.

The passing of Pennsylvania’s new budget means that several bills to slow down data center development in the state are on hold, like repealing a key tax exemption.

The gas-fired power plant that would power the data center could be the biggest in the country, emitting as much pollution as all the cars on Pennsylvania’s roads. The passing of Pennsylvania’s new ...

The Monongahela River is a 130-mile waterway that begins in the mountains of West Virginia and ends in Pittsburgh, where its waters flow into the Ohio River. Over the course of that journey, the river ...

Hannah Hohman and Koa Reitz stood on an old bridge on a sunny afternoon, looking down at the confluence of two streams. Hohman glanced back and forth between the iced ...

On a Saturday morning in March, a demolition crew took down the smokestacks at the Homer City Generating Station. The plant – first commissioned in 1969 – once employed hundreds of workers. In an ...

As home gardeners are cleaning up their spring flower beds and vegetable patches, they might notice signs of a relatively new invasive species that’s made its way across Pennsylvania. Though Asian ...