"RICHMOND, Va. — Washington, D.C., and states within the Chesapeake Bay watershed are making progress to reduce pollution flowing into the hobbled estuary but none is on track to meet cleanup commitments set this year, an analysis by environmental groups concludes."

"Environmental groups and some Curtis Bay residents are pressing the state to tighten pollution safeguards at the CSX coal terminal, saying they're concerned about runoff from the busy facility and about black dust blown onto and into their homes."

"A large concrete water main that exploded this spring along busy Connecticut Avenue in Chevy Chase has brought to light a little known local distinction: The Maryland suburbs have more of a notoriously problematic stock of pipe than almost any major U.S. water utility."

"Kish, the visible form of mill's pollution, 'invaded' homes, leaving residents to worry about health effects."

"The brutally efficient coal-extraction method known as 'longwall mining' has permanently damaged a half dozen streams in Pennsylvania, state regulators have found — a finding that could trigger deeper waves for such operations in the state."

"BALTIMORE, Md. -- Gov. Martin O'Malley has interceded with the U.S. Environmental Protection Agency on behalf of Carnival Cruise Lines after the company threatened to pull its business from Baltimore over a pending air-quality regulation that would require large, ocean-going ships to burn cleaner fuel."

"Trouble in a major Delaware City Refinery unit sent dark smoke billowing from a stack at the plant early [Tuesday] morning, triggering calls to regulators from nearby residents."

"ROCKINGHAM COUNTY, Va. -- Kim Sandum is driving on a one-lane gravel road inside the George Washington National Forest, the largest federally protected forest on the East Coast. She points to a trout stream gurgling over rocks and shallows not 20 feet from her rolling minivan."

"GE Energy Services' coal-fired power plant in Homer City will be required to meet federal standards for emissions of sulfur dioxide that are more protective of human health."