"When red knots descend on the beaches of Delaware Bay this spring famished from their marathon flight toward the Canadian Arctic from the tip of South America, the rosy-breasted shorebirds may find slim pickings instead of the feast of horseshoe crab eggs they count on to fuel the rest of their migration."

"A trio of environmental groups warned Monday they would sue the operator of three coal-fired power plants in Maryland for allegedly discharging excessive amounts of nutrient pollution into Chesapeake Bay rivers and trying to mask their violations by transferring pollution 'credits' among facilities."

"Believe it or not, there’s a Chesapeake Bay fish in even worse shape than the recovering striped bass, the troubled blue crab and even the imperiled bay oyster. The Atlantic sturgeon, pushed to the brink of extinction by overfishing and development, is little more than a memory in the Potomac River, ready for a spot in a museum."

"A new federal report finds toxic contamination remains widespread in the Chesapeake Bay, with severe impacts in some places, which health and environmental advocates say lends support to their push in Annapolis for legislative action on pesticides and other hazardous chemicals."

"CHATHAM, Va. -- In a landscape of rolling pastures and grazing cattle, Stewart East stepped from his pickup truck with a Geiger counter. He pointed it at a puddle filled by recent rains, and the instrument erupted in scratchy feedback."

"Some Baltimore Gas and Electric Co. customers — Del. Glen Glass of Harford County included — are convinced that they don't want a smart meter wirelessly sending data about their energy usage day in and out."

"The operator of three coal-fired power plants in Maryland has agreed to pay a total of $2.2 million in penalties and fix long-standing pollution problems at the landfills in Southern Maryland and Montgomery County where it disposes of the ash from those plants, according to court documents."

"Chesapeake Bay oysters are being resurrected from the dead. Blue crabs are roaring back. And after taking a huge blow from the monster storm called Sandy, the weakened bay proved in the fall that it could right itself and come back looking fresh."

"With the new year, Maryland becomes the first state to ban the use of additives containing arsenic in chicken feed, a practice already prohibited by Canada and the European Union."

"Friends say he has the vigor of a younger man, but Ed Merrifield knows the truth. He is tiring at age 65, and ready to give up his demanding third career as the Potomac riverkeeper."

Many anglers who pull fish out of the Anacostia River near Washington, DC, eat them despire health warnings.

"A signature battle of the energy boom, a public fight over a waste-water deep disposal well, plays out amid scientific uncertainty over safety in a small town."

"Contractors worked throughout the night to remove and replace an 800-foot swath of Interstate 77 that turned from asphalt to cinder in a massive natural gas line explosion that also flattened four homes and damaged five more but caused no deaths."

"CHARLESTON, W.Va. -- Details began to emerge Wednesday of previous problems at a Harrison County coal-slurry impoundment, as CONSOL Energy continued its efforts to locate a coal miner missing and presumed dead following last week's collapse of an embankment at the facility."

"Salty bromide concentrations in the Monongahela River, which had risen in 2009 and 2010 due, at least in part, to discharges of Marcellus Shale gas drilling wastewater by sewage treatment plants, returned to normal levels in 2011 and this year, according to a Carnegie Mellon University river monitoring study."