A new Hellbender Preserve in Ohio, named for the salamanders that live there, also highlights the history of early American ...

A new preserve in Ohio is named for the salamanders that live there also highlights the history of early American railroads.

Changes could remove millions of acres of wetlands from federal protection and push plant and animal species toward extinction.

U.S. Steel has agreed to pay a fine and prevent oil from one of its plants from discharging into the Monongahela River near ...

A study looked at phosphorus levels in Pittsburgh streams before and after drinking water was treated with a chemical to ...

Pennsylvania has historically taken a “backseat” to addressing concerns about the Chesapeake Bay, but Gov. Shapiro said those ...

The process of fracking a well brings up gas or oil from deep underground. But it also brings dirt and rocks that could be contaminated with radioactivity and other chemicals. An Allegheny Front ...

Drilling for oil and gas creates waste that can contain heavy metals and radioactivity, and much of it is sent to the same ...

Researchers that found that Pennsylvania counties with more farmland and herbicide use also have more melanoma, and not just among farmers.