"The Senate Finance Committee opened a probe Tuesday into Volkswagen's use of a federal tax credit intended for fuel-efficient cars as the company's emissions-rigging scandal widened."

"Citigroup Inc., the third-biggest U.S. bank, said it will cut back on financing for coal mining projects, in the latest blow to the industry that’s viewed as a key contributor to global warming."

"After watching the price of oil and the size of their profits plunge, a dozen top executives from some of the nation’s largest oil exploration companies flew to Washington late last winter on an urgent mission: push Congress and the White House to allow unlimited exports of American crude oil."

"The Justice Department unveiled final details of a record-setting civil settlement with BP over the 2010 oil spill in the Gulf of Mexico, a deal the department said would ultimately cost the London-based oil giant $20.8 billion."

"Lawyers for a company that wants to build a natural gas pipeline in north Florida have told a judge that environmental opponents should be blocked from 'presenting evidence or argument' about Gov. Rick Scott’s financial interest in the company."

"The body examining the practices of the car industry following the Volkswagen emissions scandal has been accused of a major conflict of interest after it emerged that nearly three quarters of its funding comes from the companies it is investigating."

"Volkswagen's pollution-control chicanery has not just been victimless tinkering, killing between five and 20 people in the United States annually in recent years, according to an Associated Press statistical and computer analysis."

"House lawmakers will cast a vote on lifting the 40-year-old ban on crude oil exports, the next step in an expanding debate over the issue."

"The House Energy and Commerce Committee approved an overhaul of the nation’s energy laws on Wednesday, though the legislation shed much of the bipartisan support it once enjoyed."

"The U.S. pipeline safety office has fined Exxon Mobil Corp $2.63 million for spilling crude oil in an Arkansas residential area in 2013, the regulator said on Thursday."