Environment

The Department of Environmental Protection fined Sunoco/Energy Transfer Partners an additional $355,622.

As Arctic ice caps warmed, scientists — believers and skeptics — came together to seek answers.

Scientists are learning from farmers and traditional healers — and documenting what powers their success.

Safety inspectors are recommending that Sunoco’s Mariner East 1 pipeline be restarted.

Freshwater mussels function as nature’s water treatment plants. Each animal can filter up to 600 gallons of water per month. And when w ...

California and 16 other states sued the Trump administration on Tuesday over its plans to scrap standards on vehicle greenhouse gas emissions.

Nearly all of the 33 speakers at the two-hour hearing argued that the natural gas liquids pipeline represents a risk to public safety.

The grid operator for 65 million customers in the mid-Atlantic says it will look at whether it’s becoming more susceptible to outages.

The controversial bill would eliminate many environmental requirements for Pennsylvania’s oil and gas industry.

Any fires that develop Monday could quickly get out of control and become difficult to contain at most of the Jersey Shore, forecasters say. 

Bears in Pennsylvania are struggling with mange they can't seem to kick. Scientists are studying what's unique about the disease in the state.

State Senator Andy Dinniman is trying to halt construction on two natural gas liquids pipelines.

PennLive reported the governor was an invited guest of the Sixers’ part-owner Michael Rubin, who gave Wolf’s campaign a $250,000 donation on March 2.