"A bill to increase the liability cap for oil spills from $75 million to $10 billion was defeated Thursday by Sen. Lisa Murkowski, R-Alaska."

"U.S. EPA [Thursday] issued its final 'tailoring' rule for greenhouse gas emissions, a contentious policy aimed at shielding small polluters from rigid Clean Air Act permitting requirements."

"There's at least 10 times as much oil spilling into the Gulf of Mexico than official estimates suggest, according to an exclusive NPR analysis."

"The Gulf of Mexico oil spill could grow even more disastrous if the looming hurricane season churns up towering black waves and blasts beaches and crowded cities with oil-soaked gusts, experts warned."

"Forty years after grassy narrows First Nation’s mercury-drenched river system was proclaimed off limits, a recently released report on the health fallout in the community north of Kenora has arrived at a more ominous conclusion. It’s possible that even small amounts of mercury below Health Canada’s guidelines are continuing to poison people and causing health problems."

"EPA administrator is blazing trails, from regulating greenhouse gas emissions to reforming chemical management policies."

"Many who think they have food allergies actually do not. A new report, commissioned by the federal government, finds the field is rife with poorly done studies, misdiagnoses and tests that can give misleading results."

"For 11 years, the federal government has been burying nuclear waste in New Mexican salt beds at a place called WIPP, or the Waste Isolation Pilot Plant. It's waste from making atomic weapons. But now the government is looking for a place to put thousands of tons of spent fuel from reactors. These salt beds could be the place."

""A largely ignored contaminant doesn’t just resemble bisphenol A, the chemical found to leach out of hard plastic water bottles. It’s BPA’s fluorinated twin — on steroids."

"President Obama put his weight today behind legislative efforts to lift liability caps for oil spills."