How a loophole in the law allowed fracking pollutants to go to a landfill, through a sewage plant and into the Mon River. Democratic candidates laid out their climate plans at a town hall. We asked an environmental politics professor to evaluate them. A federal appeals court deals a blow to the PennEast Pipeline. Plus, when chimney swifts roost, it's quite a sight.
A clover thought to be extinct was discovered in the region and has rebounded. One Pennsylvania town passed a single-use plastic ban, despite a state law prohibiting local bans for a year. The Amazon is burning, and that's bad for birds. Pa lawmakers propose a cap-and-trade bill that could take years to pass.
For this Labor Day weekend: An epidemic of fatal black lung disease among coal miners, a ride along with a wildlife officer and a profile of an energy auditor. Hundreds of parents petition Pittsburgh's school district to stop spraying a controversial weed killer. News about Beaver County pipelines and the Clairton Coke Works.