"MONTREAL -- Tests conducted by an environmental group suggest last month’s Lac-Mégantic, Quebec, train disaster had a devastating impact on water quality and soil in the affected area."

"MEXICO CITY — President Enrique Peña Nieto of Mexico on Monday, pushing one of the most sweeping economic overhauls here in the past two decades, proposed opening his country’s historically closed energy industry to foreign investment."

"Britain's Prime Minister David Cameron has given his unequivocal backing to the divisive 'fracking' process used to extract shale gas from rocks, risking angering his party's supporters from more rural areas."

"Crude oil shipped by railroad from North Dakota is drawing fresh scrutiny from regulators concerned that the cargo is adding environmental and safety hazards, something that analysts say could raise costs."

"Americans can expect more major power outages because of severe weather driven by climate change, a federal report says."

"Hyperloop plans revealed Monday envision a 'fifth mode of transport' in which passengers travel at extreme speeds through tubes to reach their destination. Elon Musk, chief executive of Tesla Motors and SpaceX, says the idea is 'extremely speculative.' But if Elon Musk's hyperloop is ever built, it could revolutionize transportation and energy."

"MARSHALL, Mich. — As the Obama administration inches closer to a decision on whether to approve construction of the much-debated Keystone XL pipeline, costly cleanup efforts in two communities stricken by oil spills portend the potential hazards of transporting heavy Canadian crude."

"A year ago, the Fish and Wildlife Service was poised to use a scientifically flawed range map for the American burying beetle during a preliminary assessment of the Keystone XL pipeline's effect on the endangered insect."

"WASHINGTON — As part of the climate change agenda he unveiled this year, President Obama made a commitment to significantly reduce the federal government’s dependence on fossil fuels. The government, he said in a speech in June at Georgetown University, 'must lead by example.' But just two miles from the White House stands the Capitol Power Plant, the largest single source of carbon emissions in the nation’s capital and a concrete example of the government’s inability to green its own turf."

"MAYFLOWER, Ark. -- In the week after an oil spill strangled the air in Ann Jarrell's neighborhood, tens of thousands of her bees either died or went mad."

"The Federal Railroad Administration said it is investigating the safety of transporting crude oil by rail, including whether chemicals used in hydraulic fracturing are corroding tank cars."

"The Environmental Protection Agency is proposing to let oil companies continue to dump polluted wastewater on the Wind River Reservation in Wyoming. This includes chemicals that companies add to the wells during hydraulic fracturing, an engineering practice that makes wells produce more oil."

"An independent government inquiry into the State Department's choice of a private contractor to steer the latest Keystone XL environmental review could remain open through this fall, raising the specter of a further delay in a final decision on the contentious pipeline project that President Obama vowed in March to rule on before 2014."

"U.S. EPA has backed down from an ambitious target for cellulosic biofuel production, releasing a final rule today that requires refiners to blend 6 million gallons into the nation's supply of gasoline this year."

"The 2010 Gulf of Mexico oil spill focused attention on the hazards of drilling for oil a mile below the surface of the sea, but recent incidents have brought new attention to dangers that still lurk on the shallow continental shelf, where companies rely on decades-old pipes and platforms to tap aging fields."