"The first time Bill Ferullo saw the white plumes drifting from a natural gas fracking site, he got out of his car to take pictures. 'I didn't know what it was,' he recalled. 'But two minutes later my chest was burning. It burned all night.'"

"As Northeast states take measure of the destruction brought by Hurricane Sandy, there's a new concern. New York and New Jersey have dozens of Superfund sites close to the shore. Some of these toxic zones were flooded by Sandy's storm surge. There are worries in Newark that toxic chemicals may have been swept into some people's home."

"The air reeks so strongly of rotten eggs that tribal leader Wes Martel hesitates to get out of the car at an oil field on the Wind River Reservation in Wyoming. He already has a headache from the fumes he smelled at another oil field."

"Federal officials Wednesday warned people not to come in contact with the water or eat any fish or shellfish from Newark Bay and the lower Passaic and Hackensack rivers because contamination levels remain dangerously high after Hurricane Sandy crippled a key sewage treatment plant."

"Among air experts, it's an open secret: federal and state officials grossly undercount a crucial type of air pollution, often by an order of magnitude and particularly in areas like Houston with its major concentrations of petrochemical plants."

"LAKE WYLIE, N.C. -- For more than a year, one Charlotte environmental group has warned of what could happen if coal ash ponds leak into local lakes. Now, they say, it’s happening."

"BP and the U.S. government portrayed in public a united front as a runaway well spewed oil into the Gulf of Mexico in 2010. But they privately sought to withhold potentially critical information from each other, possibly slowing efforts to solve the crisis, according to new testimony."

"Seville, with a population of about 300, is one of dozens of predominantly Latino unincorporated communities in the Central Valley plagued for decades by contaminated drinking water."

"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."