There's a growing group of conservatives on Capitol Hill who accept that climate change is caused by us and promote ‘free market’ solutions to the problem.
Parks, trails and even public swimming pools all over the country are funded by a federal program that many Americans have never even heard about, and it’s about to expire.
The UK plans to completely stop burning coal for electricity by 2025. Why is its political reality so different from ours? One answer: climate change isn't up for debate.
Pittsburgh’s Schenley Park has been listed on the National Register of Historic Places since 1985. But efforts are underway to get three more parks listed by 2020: Frick Park, Highland Park, and Riverview Park.
President Nixon signed the Endangered Species Act in 1973 with broad bi-partisan support. Now, the landmark legislation is being targeted by industry, with support from the GOP. What happens next could determine the fate of hundreds of endangered species.
When Pittsburgh Parks Conservancy staff cleared away invasive honeysuckle, they discovered a rare find - healthy, disease-free butternut trees. The species is threatened by a fatal fungal disease.