About 100 people who study ways to prevent injuries, illnesses and death in coal mines are set to lose their jobs in June.

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

The Mid-Atlantic grid could be stressed by rising temperatures and a surging demand that is expected to outpace the previous ...

After 17 years underground, Brood XIV cicadas have started emerging to breed in parts of the United States, including ...

Alcoa’s Western Australia division is one of the world's largest alumina producing operations. Some say its decades-old ...

In 1955, 67-year old Emma "Grandma" Gatewood became the first woman solo thru-hiker on the Appalachian Trail. She would go on ...

Some residents say toxic dust from Alcoa's three sprawling industrial facilities along the southwestern coast of Australia is ...

With its new trail and discovery space in Frick Park, Pittsburgh Parks Conservancy aims to create an inclusive outdoor ...

The data will help guide the conservation efforts at Raystown Lake, including managing invasive species. iNaturalist ...

Former DEP secretary David Hess says a Senate bill is meant to punish communities that try to protect their health and ...

The Regional Greenhouse Gas Initiative requires fossil fuel burning power plants to pay for carbon dioxide emissions. But is ...