Kara Holsopple

"Freedom to Breathe" campaign was launched in Allegheny County by the Black Appalachian Coalition to address air pollution in Black and brown communities.

The highly pathogenic avian flu strain is infecting animals and people on dairy and poultry farms, but it's rising among wild birds, mammals, and even pet cats.

Global warming and loss of vegetation are part of the story, but scientists aren’t sure what else could have caused the January record.

A new tool helps Beaver County residents evaluate air quality

A new study finds a relationship between lead concentrations in the air and infant deaths.

An organizer of the upcoming Pittsburgh Youth for Climate Action Summit says it gives her hope to be involved with a group who cares about climate change.

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

What amendments to the Endangered Species Act could mean for wildlife

Map shows what’s possible with federal clean energy investment in Pa.

The 100-acre site in Erie County is being reforested through a partnership between the Western Pennsylvania Conservancy and the nonprofit Bosland Growth.