"[Pennsylvania] Department of Environmental Protection Secretary John Quigley resigned Friday afternoon, following several news reports about a controversial email he sent last month to environmental groups."

"With West Virginia’s economy battered by a coal industry in free fall, Senator Bernie Sanders of Vermont is hoping that a strong showing in this state’s Democratic primary on Tuesday will keep him a force in the party’s politics by showing that his message still resonates, even though his rival, Hillary Clinton, has an almost insurmountable lead in delegates."

"Don Blankenship was recently sentenced to prison, but that's not keeping him away from the presidential election."

"The U.S. Geological Survey says five minor earthquakes originated in an area just west of New Castle in a 22-hour period on Monday, all small tremors between magnitude 1.7 and 1.9, which is below what humans can feel."

"WILLIAMSON, W.Va. — Hillary Clinton came to campaign in coal country — and she had her feet held to the fire."

"A CSX freight train derailed in northeastern Washington [DC] on Sunday, spilling hazardous material near a subway station and disrupting commuter rail and long-distance Amtrak passenger trains but causing no injuries, authorities said."

"An intense last-minute push by establishment Democrats and environmentalists to shore up their preferred Senate Democratic nominee paid off in Pennsylvania [Tuesday] night, as former White House Council on Environmental Quality Chairwoman Katie McGinty won the right to take on Republican Sen. Pat Toomey in November."

"The massive wildfire tearing through the southern portion of Shenandoah National Park grew substantially Thursday and crossed over to the eastern side of Skyline Drive in several spots, a development that firefighters had been hoping to prevent. And smoke from the fire has drifted as far north as Washington’s southwestern suburbs, prompting concern from residents there."

"Shenandoah National Park is on fire and the blaze is growing. The National Park Service said that 3,000 acres have been charred since the fire started on Saturday. Officials don’t know what sparked the fire, but they think it was likely human-caused."

"The [Chesapeake] Bay’s blue crab population increased to its highest level in four years, and the number of spawning-age females — a key ingredient for future abundance — nearly doubled from last year, according to survey results released Tuesday."