National (U.S.)

"The U.S. Environmental Protection Agency released on Thursday the locations in five states where it will study the safety of a natural gas drilling technique some blame for polluting water."

"Like the vast African plains, two huge expanses of the North Pacific Ocean are major corridors of life, attracting an array of marine predators in predictable seasonal patterns, according to final results from the Census of Marine Life Tagging of Pacific Predators (TOPP) project published in the journal Nature."

"An internal investigation by the owner of the rig that exploded in the Gulf of Mexico last year has largely blamed BP for the disaster."

"John Bryson, a former Southern California utility executive, tries to ease concerns that his environmental views are too liberal at his Senate confirmation hearing."

"A new coalition of public health advocates is urging Maine's two U.S. senators to take a stand against what they describe as a full-scale assault on the Clean Air Act by powerful corporate interests."

"After a brief but rancorous debate, a House committee approved a fast-tracked bill that would shift regulatory powers over water, wetlands and mountaintop-mining regulation from U.S. EPA to the states."

"Motorcyclists and ATV riders are revved up by a Republican plan that would remove restrictions on motorized access to 43 million acres of public land nationwide, while environmentalists say it would be a big mistake."

"The House has approved a bill removing a barrier to companies seeking to drill for oil in some areas offshore."

"An environmental group threatened to sue two of the nation's biggest rail owners Tuesday under a novel legal theory that would classify diesel exhaust as hazardous waste."