"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."

"California, whose green ambitions helped the solar and wind industries take root, is taking an essential next step by proposing a sharp rise in energy storage to better integrate renewable power with the rest of the grid."

"At 3:57 p.m. on Aug. 14, 2003, a fog of ignorance and confusion enveloped a critical crossroads of the eastern U.S. power grid."

"Don Feusner ran dairy cattle on his 370-acre slice of northern Pennsylvania until he could no longer turn a profit by farming. Then, at age 60, he sold all but a few Angus and aimed for a comfortable retirement on money from drilling his land for natural gas instead."

"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."

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

"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."

"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."

"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."

"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."