"The Environmental Protection Agency on Tuesday proposed new requirements for testing the toxicity and effectiveness of chemical dispersants used to break up oil spills."

"The Keystone XL tar sands pipeline faces a potential new legal challenge and the prospect of further delays from ranchers along its proposed route in Nebraska who say they “aren’t finished fighting” yet."

"Customers in 42 of the nation's 50 largest cities — including Charlotte and Raleigh — would save money by installing rooftop solar instead of buying all their power from local utilities, says the N.C. Clean Energy Technology Center."

"In President Obama’s latest move using executive authority to tackle climate change, administration officials will announce plans this week to impose new regulations on the oil and gas industry’s emissions of methane, a powerful greenhouse gas, according to a person familiar with Mr. Obama’s plans."

"It was a few minutes before 8 on a cool spring morning at an oil well in West Texas last year when truck driver Roberto Magdaleno walked over to the site supervisor to get some papers signed. At that moment, a sand separator at the well site exploded, spraying shrapnel more than 1,400 feet, according to Occupational Safety and Health Administration officials who investigated the April 30, 2014, explosion outside Orla, Texas."

"[Canada's] federal government is trying to stop NAFTA's environmental oversight commission from investigating environmental damage caused by tailings ponds in Alberta's oil sands."

"General Motors Co on Monday showed its Chevrolet Bolt concept car with an electric driving range of more than 200 miles and a $30,000 price tag, offering a view into where the U.S. automaker is pushing in development of electric vehicles (EV)."

"The Senate voted Monday to take up a bill that would force approval of the Keystone XL pipeline, opening a debate on energy and climate change that will preview other clashes to come between President Obama and the new Republican Congress. It will also set the stage for the energy and climate battles of the presidential election next year."

"Oil prices took another sharp turn downward on Monday to levels not seen since the depths of the 2009 recession. Several international banks predicted even lower prices later this year because of an oversupplied global crude market."

"Nebraska’s Supreme Court on Friday cleared the route for the Keystone XL pipeline, removing a major hurdle for the project as Congress and the president fight over it."