"Behold the tiny oyster. No, not on the half-shell, with a squirt of lemon, but in its watery habitat, the Choptank River. Out there on a reef with many other oysters, the bivalve is awesome, a janitor that helps remove pollution with incredible efficiency."

"The Nuclear Regulatory Commission (NRC) said on Tuesday it will increase oversight of Exelon Corp's 805-megawatt Three Mile Island nuclear power plant in Pennsylvania, to ensure that safety equipment is protected from flooding."

"The Environmental Protection Agency is reporting promising but uneven results in its latest report on costly efforts to control toxic pollution creeping away from Delaware’s largest Superfund cleanup site."

"Smallmouth bass that draw hundreds of millions of dollars to the Chesapeake Bay region for sport fishing are sick, and many look too awful to ever mount as a trophy."

"They’re back. Seventeen years after a major swarm of bug-eyed cicadas staged one of nature’s weirdest — and loudest — mating rituals, their offspring are preparing to rise in Washington’s suburbs and the Mid-Atlantic."

"A Washington County judge [Wednesday] morning ordered unsealed a court-approved settlement between Marcellus Shale development companies and a family that claimed the drilling operations damaged their health."

"WASHINGTON — A coalition of energy companies, environmentalists and Pennsylvania-based philanthropies announced Wednesday the creation of a center that would provide more stringent standards for fracking and natural gas development in the Eastern United States."

"Ten years have gone by since one of the weirdest discoveries in the Chesapeake Bay region, on the south branch of the Potomac River — male smallmouth bass with lady parts, eggs in places where they absolutely should not be."

"Many of Pennsylvania's policymakers, regulators and enforcement workers have come from the oil and gas industry they oversee, or they leave state jobs for industry jobs, according to a recent report that questions the impacts of such a "revolving door" on public policy decisions."

"In storm-battered Virginia, the Republican candidate for governor still doubts the science."

In the World War I era, the U.S. Army thought it was disposing of dangerous toxic chemicals in waste pits located near what is now American University. Then residential houses were built on top of the site. Today, the danger and efforts to clean it up are still a problem.

"Maryland's highest court on Tuesday struck down the bulk of a fraud case against ExxonMobil Corp. stemming from an underground gasoline leak in Baltimore County, reversing most of $1.65 billion in judgments and dealing a stunning blow to hundreds of families."

Two retired outdoorsmen -- with help from water researchers -- are testing streamwater in western Pennsylvania. They are struggling to get EPA attention to chemicals they fear could be related to the fracking boom.

"MORGANTOWN, W.Va. -- The U.S. Department of Labor wants a federal judge to order the immediate shutdown of a potentially dangerous West Virginia coal slurry impoundment it says hasn't been certified by a professional engineer for two years."

"CHARLESTON, W.Va. -- Long-term forecasts for coal production in West Virginia and the rest of Central Appalachia continue to show major declines are underway -- and still to come -- for the region's mining industry."