"YORK, PA -- Roughly 50 workers at Peach Bottom Atomic Power Station were exposed to low levels of radiation early Tuesday after a discharge of contaminated steam."

The gas drilling industry says fracking hasn't been linked to water contamination. But it has.

"Inch by inch along parts of the Atlantic Coast, global climate change is running in what scientists warn is geology’s version of fast-forward — swamping and eroding beaches, wetlands and farm fields."

"Trading pollution 'credits' to reduce the cost of cleaning up the Chesapeake Bay risks endangering the health of the region's poor and minority communities, a new report warns."

"Baltimore's public housing agency announced Monday it has paid $3.7 million to a former public housing resident who suffered lead-paint poisoning as a young child in the 1980s."

"On a hot summer day, it's hard to see how the Conowingo Dam could hurt the Chesapeake Bay. Anglers line the shore below the 94-foot high impoundment, casting out into the gently roiling Susquehanna River for rockfish breaking the water. Yet unseen, on the other side of the dam, millions upon millions of tons of sediment and nutrient pollution are slowly building up that could wreak havoc on the bay if they get through."

"A Luzerne County physician claims in a federal lawsuit that Pennsylvania's new oil and natural gas drilling law will force him to violate ethical rules in treating his patients."

"Owners of one of the nation’s largest impoundments of the often-toxic byproducts of burning coal must do more to protect residents from groundwater contamination and stop accepting waste by 2016, under an agreement with Pennsylvania regulators."