National (U.S.)

"A small Colorado tribe takes control of its energy resources and becomes a billion-dollar corporation — but has it gone too far?"

"Four years after tragedies in Kentucky and West Virginia prompted sweeping mine safety changes, a House panel Tuesday split along party lines over the need for additional reforms."

"Scientists are reporting early signs that the Gulf of Mexico oil spill is altering the marine food web by killing or tainting some creatures and spurring the growth of others more suited to a fouled environment."

"President Obama and Senate Democrats have decided to press ahead in the next two weeks with a scaled-back energy bill that limits carbon pollution by power plants but not by other industries in an effort to salvage the legislation before midterm elections."

"BP engineers working to choke the flow of oil into the Gulf of Mexico found a leak on a line attached to the side of the new well cap and were trying to fix it Thursday before attempting to stop the crude."

"There's 'no chance' that President Obama will rework the executive policies carried over from his predecessor that tell agencies how to write regulations and outline a White House oversight role, academics and activists say."

"The Army Corps of Engineers wants to use ash cast off from coal-fired electrical generation to shore up dozens of miles of Mississippi River levees, drawing fire from environmentalists worried that heavy metals from the filler might make their way into the river."

Methylnaphthalene, one of the hydrocarbons behind the Kellogg Company's June recall of some 28 million boxes of cereal, has yet to be evaluated for carcinogenicity

"The story of the last cataclysmic American oil spill has evolved over time into a straightforward tale of cause and effect.... A commission that investigated the Alaska spill found that oil companies cut corners to maximize profits. Systems intended to prevent disaster failed, and no backups were in place. Regulators were too close to the oil industry and approved woefully inadequate accident response and cleanup plans. History is repeating, say officials who investigated the Valdez, because the lessons of two decades ago remain unheeded."

"Ethanol and other renewable fuels must account for 7.95 percent of total gasoline sales in 2011 to meet Congress' mandate for 13.95 billion gallons of renewable fuels expected to be produced next year, the U.S. Environmental Protection Agency said on Monday."