"The Obama administration said Thursday it will require companies that drill for oil and natural gas on federal lands to publicly disclose chemicals used in hydraulic fracturing operations. The new "fracking" rule replaces a draft proposed last year that was withdrawn amid industry complaints that federal regulation could hinder an ongoing boom in natural gas production.

"MEXICO CITY -- Fed up with oil spills from facilities belonging to Mexico’s state oil company Pemex, residents of two communities in the southeastern state of Tabasco are taking the country’s largest company to court in a bid for compensation for damage to the environment and agriculture."

"If the U.S. Environmental Protection Agency isn’t going to ensure Seattle’s Duwamish River is clean enough for needy residents to fish there for their dinner, the agency needs to ensure those people get fish some other way – even if that means supplying seafood through food banks. Or building clean urban fishing ponds. Or giving people shares in a seafood cooperative akin to a community-supported-agriculture operation."

"RALEIGH — Fish in one of North Carolina’s largest watersheds are more polluted by an industrial contaminant than previously reported, and state health officials have failed to expand warnings against eating PCB-contaminated fish, according to a new study."

"Two residents of Mayflower, Arkansas, the site of the March 29 pipeline spill, traveled to Washington on Thursday to ask Secretary of State John Kerry to reject the Keystone XL pipeline."

"Palisades Nuclear Power Plant in southwestern Michigan was taken offline Sunday after operators discovered a leak from a water tank. Although the tank has leaked twice in less than a year, officials say there is no immediate risk."

"Living near a toxic waste site may represent as much of a health threat as some infectious diseases, a study in three developing countries finds."

"Recent flooding of the 263-mile-long Grand River led to runoff issues, sewage overflows, and an increased awareness of the river’s significance to the region."

"Exxon Mobil Corp's near 70-year-old Pegasus oil pipeline leaked a small amount of crude into a residential yard in Ripley County, Missouri on Tuesday, a month after the same pipe spewed thousands of barrels of crude in Arkansas."

"An independent study co-published by the Faulkner County Citizens Advisory Group and Global Community Monitor reveals that, in the aftermath of ExxonMobil's Pegasus tar sands pipeline spill of over 500,000 gallons of diluted bitumen (dilbit) into Mayflower, AR, air quality in the area surrounding the spill has been affected by high levels of cancer-causing chemicals."

"Scientists say waste-treatment plants must follow subways and power stations in being protected against climate change."

"CONWAY, SC -- Pollution from a pair of coal ash ponds at Santee Cooper’s retired Grainger electric generating plant here has sparked another lawsuit – this one filed by The Southern Environmental Law Center, which alleges the state-owned utility is violating the federal Clean Water Act."

"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."

"PITTSBURGH -- The Environmental Protection Agency has dramatically lowered its estimate of how much of a potent heat-trapping gas leaks during natural gas production, in a shift with major implications for a debate that has divided environmentalists: Does the recent boom in fracking help or hurt the fight against climate change?"

"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."