Mussels are a natural filter, cleaning up muddy water and allowing more sunlight into the water. A new hatchery hopes to raise a half a million mussels a year for the Delaware and Susquehanna watersheds.
The head of the National Wildlife Federation says "the wheels are in motion to have damage in the most pristine wilderness areas in the world for decades to come."
Pennsylvania was among the first governments in the world to guarantee its citizens the right to a clean environment. In practice, that didn’t mean much — until now.
