We halted flow of all tar sands bitumen in U.S. pipelines, equal to 15 percent of daily US oil consumption.
The Sibir weighs 33,500 tons, is more than 576 feet long and is fueled by two nuclear reactors, giving it the power to plow through icy Arctic terrain.
Trump has overturned Obama's ban and approved exploratory drilling, starting in December.
The Democrat turned Republican West Virginia governor proposes bribing power companies to use coal instead of natural gas.
Even if the US could shun Venezuelan oil, it would get re-routed to China or India.
A study of emergency room visits in China suggests that severe heat is less bad for our health than severe cold.
Iraqi Vice President Nouri al-Maliki thanked Russia for its "tremendous contribution" to Iraq and Syria by battling the Islamic State militant group.
Most oil and gas fields are under the control of U.S.-backed forces, despite Syrian military gains.
As Russia and Turkey increasingly cooperate in Syria, a lucrative natural gas pipeline deal progresses.
Obama used the Clean Air Act's provisions to allow the EPA to create the Clean Power Plan.
Tillerson wanted to remain in the Accord to advance the American fossil fuel industry's agenda.
Spicer misspoke, but perhaps because Trump is not too troubled by the Holocaust.
The Islamic State militant group launched two poison gas attacks on Iraqi troops in two days as pro-government forces advanced against the jihadists in their final Iraqi stronghold of Mosul.
Putin claims to have evidence that the rebels are planning chemical attacks that will be pinned on the Syrian regime.
Moscow's attempt to blame the Syrian rebels for the deadly attack is just about 'deflecting blame' for the Assad regime, officials say.
Regular citizens are largely unaffected by the shortfall as they tend to drive older cars that use regular fuel.
Russia's ruthless counterterrorism approach has not stopped terrorism.
Trump's EPA pick Scott Pruitt is in the pocket of the fossil fuel industry.
Even the most familiar substance still has secrets hiding within.
A man drove a van of gas cylinders into the conservative group's offices in Canberra.
Authorities say the protesters were aggressive, starting fires and hurling rocks.
The U.S. Treasury is trying to enforce U.S. law. John Kerry is telling foreign banks to ignore it.
Rebels open a new front in contested city, trying to break the government's siege.