"North Carolina regulators will sanction The Chemours Co. for the release of an unregulated chemical into the Cape Fear River –  the latest in a barrage of legal assaults facing the Delaware company in the Tar Heel State."

"JESSUP, Pa.—The biggest new natural-gas power plant in a state awash with them is taking shape on a mountain ridge overlooking the community it cleaved apart."

"FARMINGTON, PENNSYLVANIA—In a chamber a few hundred feet underground known as the Stomach, long-time cave guide Lisa Hall is talking about bats. Less than a decade ago, this cave system was home to thousands of them—little brown bats, northern long-eared bats, Indiana bats, and big brown bats. Today, she says, when the staff spot a single individual (almost always a big brown bat, Eptesicus fuscus), they get excited."

"For ten days across recent summers, researchers aboard the University of Delaware research vessel Hugh R. Sharp collected water samples from the mouth of the Susquehanna River to Solomons Island in a first-of-its-kind investigation. They wanted to know when and where the waters of the Chesapeake Bay were turning most acidic."

"The city’s rise as a global innovation city reflects decades of investment in emerging technology, a new Brookings report says."

"Bulldozers, excavators and construction workers are bulling their way into Patapsco Valley State Park near Baltimore this fall. They’re the advance guard for a task force charged with removing a dormant hydroelectric dam on the Patapsco River and reopening a big stretch of the river to spawning runs of migratory fish."

"The technology, billed as a central pillar of the Steel City’s future, may be creating more economic anxiety than anything else."