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.
A physics professor at Indiana University of Pennsylvania has accidentally hit on a way to determine food freshness that's way better than an expiration date—or the sniff test.
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
