The exemptions were supported by the grid operator for the mid-Atlantic region, which is bracing for an oncoming rush of ...

Plants Out of Place” exhibit at Carnegie Museum of Natural History in Pittsburgh examines the complexities of invasive plants ...

DEP monitors and treats 48 rivers and streams spanning more than 1,800 miles for black flies, also knows as gnats.

A Department of Energy document obtained by POLITICO indicates funding for the MACH2 hydrogen hub in the Philly region could ...

A Department of Energy document obtained by POLITICO indicates funding for the MACH2 hydrogen hub in the Philly Area could be cut.

Writer, photographer Tim Palmer returns to a subject he knows well in his new book, "Watching the River Run: A Photographic ...

The declaration will make it easier to log national forests as some regulations like endangered species protections and public challenges are curtailed.

Local residents weigh in on plans for the former Homer City coal-fired power plant to become a gas power plant and data ...

Scientists, engineers and researchers are warning of long-term damage from the Trump administration's decimation of ...

Parts of the Delaware River have low dissolved oxygen levels caused by ammonia discharges from wastewater facilities.