"After two years of imposing increasingly stiff penalties on automakers that overstate their fuel economy ratings, federal regulators on Monday said they would tighten guidelines used in determining the mileage advertised to consumers."

"To Washington insiders he is Dr Evil: the hidden orchestrator of industry campaigns against the Humane Society, Mothers against Drunk Driving, and other seemingly uncontroversial groups. Now Richard Berman, a one-time lobbyist turned industry strategist, has zeroed in on another target: Barack Obama’s new power plant rules."

"SEATTLE — A Skagit County hearing examiner handed conservation groups a victory Monday, ruling that an oil-by-rail project at the Shell Puget Sound Refinery near Anacortes should undergo a full environmental review."

"Federal prosecutors filed multiple criminal charges against Duke Energy on Friday over years of illegal pollution leaking from coal ash dumps at five North Carolina power plants."

"The Obama administration on Friday proposed standards on exploratory drilling for oil and gas in U.S. Arctic waters that would add costs for energy companies but aim to protect against catastrophic spills."

"Lawyers for Harvard University will appear in court on Friday to fight off attempts to force the world’s richest university to dump coal, oil and gas companies from its $36bn (£23bn) endowment."

"Gray wolves in the western Great Lakes region are protected by federal law once more."

"FLINT, Mich. -- In 1994, activists opposing the construction of a wood-fired power plant here asked U.S. EPA for help, arguing the project would spew toxic pollutants into their poor, largely African-American neighborhood."

"Opposition parties and environmentalists slammed the Couillard government on Thursday for green-lighting a $1.1-billion cement works project without a review by Quebec’s environmental bureau."

"A federal judge in New Orleans has rejected BP's effort to cap its fines from the 2010 Gulf of Mexico oil spill at $9.57 billion, nearly one-third lower than the penalty federal prosecutors are seeking. The court has not yet ruled how much the British oil giant will pay for the disaster."