"Critics of hydraulic fracturing, known widely as 'fracking,' have been pushing hard for natural gas companies to disclose all of the chemicals in the fluids that are used in the process. But what if the companies themselves don't even know what those chemicals are?"

"Shell Oil has not disclosed new safety measures since a critical federal report in March, and it has not applied to drill in the Arctic in 2014."

"WHITING -- The Indiana Department of Environmental Management issued its final ruling on a permit application for BP's Whiting Refinery, requiring the company to cut its mercury releases into Lake Michigan by more than half."

"Cancer-causing industrial chemicals have been found in the sewers at a Columbia-area restaurant as a state investigation of illegal dumping expands from the Upstate to the Midlands, where utility officials scrambled this week to learn more about the threat to central South Carolina."

"An elemental phosphorus plant owned by the FMC Corp., on the Shoshone-Bannock homelands in Idaho, has been abandoned for more than a decade. But its legacy of pollution remains -- and it’s jeopardizing economic progress, public and environmental health on the reservation and in surrounding communities."

Residents of a largely Latino San Diego neighborhood have three times the chance of having asthma.

"SALEKHARD, Russia -- Russia announced on Tuesday that it had opened a piracy investigation against the crew of a Greenpeace ship after its activists scaled an offshore oil platform in the Arctic last week. The step signaled that the authorities intended to act decisively to thwart more protests against Russia’s ambitious plans to expand energy exploration in the region."

"The damage from oil during the BP Deepwater Horizon disaster to communities of tiny organisms living in and on the soft sediment on the floor of the Gulf of Mexico surrounding BP's Macondo well will take decades to repair, according to a new scientific study conducted by NOAA, BP and university researchers."

"Long Island's sole source of drinking water lies beneath many of the most contaminated places in New York State."

"A federal judge in New Orleans has handed environmental groups what amounts to half a loaf in their push for federal regulations on the flow of pollutants into the Mississippi River that fuels the annual spring low-oxygen 'Dead Zone' along Louisiana’s Gulf coast."