Last week's Canadian green light for a pipeline flow reversal may mean that oil sands crude will be travelling to New England. Some New Englanders think that's a bad idea.

"CHARLOTTE, N.C. -- Duke Energy's CEO says while the company and its shareholders will pay to clean up a coal ash spill in the Dan River, its customers will shoulder the costs of closing the rest of the utility's coal ash ponds across North Carolina."

"RALEIGH — After much debate over how to deal with coal-ash hazards at Duke Energy power plants in North Carolina, a Wake County Superior Court judge says the answer is to take “immediate” action."

"A dozen years ago, neighborhoods around Riverside, an hour’s drive east of Los Angeles, had the nation’s worst soot: Every three days, on average, the air was declared unhealthful, and people were breathing twice as many microscopic particles as deemed safe."

"ST. LOUIS — A national environmental group has made good on its promise to sue a St. Louis-based utility regarding what it calls thousands of violations of federal clean air laws."

"One of the nation’s biggest coal companies will pay a record civil penalty and will spend tens of millions of dollars to clean up water flowing from mines in five states, the Environmental Protection Agency and the Justice Department announced on Wednesday."

"Since losing a $19 billion judgment in an Ecuadorean court three years ago, Chevron has drawn the condemnation of human rights and environmental activists by refusing to pay anything in fines or accept blame for polluting the Ecuadorean rain forest."

"Already targeted as a source of lung-damaging air pollution, a company that has been piling petroleum coke on Chicago's Southeast Side now faces new accusations that it illegally allowed contaminated runoff to spill into the Calumet River."

"RALEIGH, N.C. — Last June, state employees in charge of stopping water pollution were given updated marching orders on behalf of North Carolina’s new Republican governor and conservative lawmakers."