Allegheny County isn’t as green as it used to be. In the last five years, 11,044 acres of trees were lost. The nonprofit Tree Pittsburgh is trying to figure out why.
This "underdog" of aquatic animals can filter up to 600 gallons of water per month. Working together, mussels can dramatically clean the rivers where they live. Now, Philadelphia is banking on just that.
If you want to impress your friends on your next hike through the woods, there's a guy at Raccoon Creek State Park that can make you a guru of spring wildflower identification.
People who study birds are now using radar to make maps that can forecast migration at night. They say these maps could help by reducing the number of birds that collide with buildings and wind turbines.
These little shorebirds are an endangered species in the Great Lakes region. But they’re making a comeback thanks to conservation efforts and even some heroics.
In past decisions, judges on the Environmental Hearing Board ruled against the DEP’s permits, at one point saying they would allow the company to “essentially destroy” the stream.
