Will Donald Trump lash out at Leo next?
In a new ranking of nations' high-speed train networks, the U.S. comes in below even Turkey and Uzbekistan.
Watch about 150 activists disrupt the auction for offshore drilling leases in the Gulf of Mexico.
McConnell is advising states to "wait and see" before complying with the centerpiece of Obama's climate agenda.
He's "not a big believer" in that more traditional kind of climate change, he tells the Washington Post editorial board.
With their victory against Atlantic offshore drilling behind them, activists set their sights on shutting down new leases in the Gulf.
As the White House talks about cooperating with Cuba on climate change, Big Oil salivates at the prospect of drilling off the nation's coast.
The GOP frontrunner makes Big Oil nervous.
Anti-fracking legislation is picking up steam in Colorado.