More than 170 media outlets across the globe commit to covering climate change, one of the most ambitious efforts ever to focus attention on a single topic.
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.