Less than a decade ago, the coal industry was at its peak. Now, bankruptcies across the industry are leading many to question whether it's the beginning of the end for coal. So what happened?
Because clean-up funds for old mines are tied to revenues from current mining operations, a slow-down in the industry could delay the clean-up of hundreds of abandoned mines in Pennsylvania.
Four years ago, the Homer City Generating Station in Indiana County, Pennsylvania faced an existential choice: Either clean up to comply with new EPA air rules or close its doors
New EPA pollution standards have led many coal-fired power plants to close their doors in recent years. But one Pennsylvania power plant is cleaning up its act in order to survive.