Shell's plans to build an ethane cracker near Pittsburgh are moving full-speed ahead. But the company still needs an important permit from a local township.
A National Guard veteran talks about why she will be among the military vets heading to North Dakota this weekend to join the protests against the Dakota Access pipeline.
The Pennsylvania Medical Society—which represents a quarter of the state’s doctors—is reversing course and calling for a moratorium on new hydraulic fracturing operations.
Canadian-born hip hop artist Baba Brinkman has put his spin on everything from evolution to "The Canterbury Tales." And with his latest album, he's taking on the global climate crisis.
Pittsburgh-area schools have invested big money in modern artificial surfaces for football and soccer fields. But there's growing concern that they may pose a health risk.
Jim Justice is banking on his record as a businessman to carry him to the state's highest office. But a recent investigation revealed that his companies owe millions in back taxes and fines.
Our energy reporter Reid Frazier digs into whether Donald Trump really thinks climate change is a hoax; and whether Hillary Clinton can deliver on one of her most ambitious campaign promises.
Threats from pests, pesticides, diseases and habitat loss are all putting bees in a tough spot. But researchers have some new ideas for using technology to get bees back on track.