"The Obama administration on Friday scored its third major legal victory on air pollution in less than month when a federal appeals court rejected an industry challenge to its latest health standards for fine particulate matter, or soot."

"The Obama administration began a process that may result in the first federal regulation of chemicals used in fracking, a drilling technique that has transformed energy production while eluding oversight sought by environmentalists."

"The World Health Organization says air pollution in many of the world's cities is breaching its guidelines. Its survey of 1,600 cities in 91 countries revealed that nearly 90% of people in urban centres breathe air that fails to meet levels deemed safe."

"The U.S. Supreme Court on Monday refused to review a long-running Los Angeles County case, handing a victory to environmentalists in a battle over polluted urban runoff that fouls Southern California's coastal waters."

"ASHEVILLE, N.C. -- With at least $11 million in government funding spent so far on the CTS Superfund site, neighbors like Lori Murphy see little to show for it."

"As Washington environmental regulators start wrestling with the safety of new and larger fuel terminals along the Pacific Coast, some residents in southwest Washington communities are getting restless — with worries about the safety of crude oil shipped by rail to refineries and shipping docks."

"Even though Indiana has the most coal-ash ponds of any state in the nation and a troubling number of spills, state environmental regulators have done little to address the ongoing problems of how to dispose of coal waste."

"Colorado's intensifying oil and gas boom is taking a toll on soil — 200 gallons spilled per day seeping into once-fertile ground — that experts say could be ruinous."

"Work crews for BP Plc were clearing contaminated snow on Thursday on Alaska's North Slope after a Prudhoe Bay well line ruptured, spraying a 34-acre area with crude oil and natural gas."

"The National Transportation Safety Board has launched an investigation of a freight train derailment in Lynchburg that destroyed three oil tanker cars, lifted a plume of black smoke into the sky and spilled thousands of gallons of crude oil into the James River."