“More than 10 years after the Delaware River Basin Commission imposed a de facto moratorium on gas drilling in the watershed, setting off a battle between natural gas advocates and environmentalists, the commissioners voted to ban fracking at a special meeting Thursday. All four basin states — Pennsylvania, New Jersey, Delaware and New York—voted to ban the practice, citing scientific evidence that fracking has polluted drinking water, surface water, and groundwater...The decision already faces several federal lawsuits challenging the agency’s authority.”