"BOSTON -- Concerns have cropped up in recent years that the methane leaks from oil and gas fields could be large enough to pose a significant climate threat."

"BP Plc fostered a culture that put cost-cutting over safety before the deadly 2010 Gulf of Mexico oil spill, a noted forensic engineer said in the first day of testimony in the federal civil trial centered on the disaster."

"U.S. federal prosecutors have been asked to take legal action over safety and environmental violations discovered on one of two drillships Royal Dutch Shell used last year in Arctic waters off Alaska, officials said on Monday."

"One of the the nation’s largest utilities agreed Monday to close three of its coal-fired power plants as part of a settlement with government officials and environmental groups, the latest sign of how the nation’s electricity supply is shifting away from coal."

"NEW ORLEANS — BP finally faced off in court Monday against an army of federal and state prosecutors, lawyers and even its contract partners over the Gulf of Mexico oil spill three years ago, contending that it alone should not shoulder blame for the rig explosion that killed 11 workers and soiled beaches and marshes from Louisiana to Florida."

"Native Americans on an oil-rich North Dakota reservation have been cheated out of more than $1 billion by schemes to buy drilling rights for lowball prices, a flurry of recent lawsuits assert. And, the suits claim, the federal government facilitated the alleged swindle by failing in its legal obligation to ensure the tribes got a fair deal."

"NEW ORLEANS -- Billions of dollars will be at stake Monday at the opening of a complex trial to determine how much BP should pay for the devastating 2010 Gulf of Mexico oil spill."

"NEW ORLEANS -- Stunning new data not yet publicly released shows Louisiana losing its battle with rising seas much more quickly than even the most pessimistic studies have predicted to date."

"Environmental advocates and representatives from the oil-and-gas industry are flocking to the White House following the submission of a draft rule that would govern the controversial practice of hydraulic fracturing on public lands."

"Limited data and unreliable estimates on air pollution from oil and natural gas production is hindering the Environmental Protection Agency's efforts to police the drilling boom, the agency's internal watchdog said in a report released Thursday."