"The Environmental Protection Agency said on Monday that it had discovered emissions-cheating software on more Volkswagen and Audi cars than previously disclosed and, for the first time, also found the illegal software in one of the carmaker’s high-end Porsche models."

"The company sponsoring the controversial Keystone XL oil pipeline Monday asked the State Department to suspend the review of its federal permit application, a request that could push a final decision on the pipeline beyond President Obama’s tenure in office."

"Tens of thousands of British coal miners have lost their jobs in recent decades, during the steep decline of an industry that stoked the nation’s industrial rise, sustained it through two world wars and once employed more than one million people."

Conservatives and evangelical Christians are making a case for clean energy. Will it become a movement?

"The top oil and gas lobby group is launching a new advertising campaign against the federal ethanol mandate."

"A sudden spike of earthquakes in southern Kansas is raising eyebrows in the region, where there have been more earthquakes in the past two weeks than there were in the years between 1990 and 2013."

"NEW ORLEANS - Gulf coral damage from the massive BP oil spill is more extensive than previously thought, according to a new study that revealed sick and dying corals in the rich, deep-water environment off the coasts of Alabama and Mississippi known as the Pinnacles."

"Democratic presidential candidate Hillary Clinton has joined the ranks of politicians and environmentalists calling for a federal investigation of ExxonMobil."

"The British oil giant BP said on Tuesday that its profit was down sharply in the third quarter as depressed oil prices took a heavy toll."