"Republican presidential candidate Jeb Bush, who has made varying statements on climate change this year, said Thursday that he believes humans are partly responsible for it. "

"In the strongest action ever taken in the United States to combat climate change, President Obama will unveil on Monday a set of environmental regulations devised to sharply cut planet-warming greenhouse gas emissions from the nation’s power plants and ultimately transform America’s electricity industry."

"Virginia Gov. Terry McAuliffe, never stingy with superlatives or shy about boosterism, has been bragging lately in a way that has neighboring Maryland steamed."

"U.S. EPA appears to be leaning toward giving states an extra two years -- until 2022 -- to start cutting carbon emissions from power plants under a final Clean Power Plan rule expected to be rolled out as early as Monday."

"The U.S. Senate Energy Committee on Thursday narrowly passed a bill to lift a 40-year-old ban on the export of crude oil, but the measure faces an uphill battle in getting passed by the full Senate."

"Barack Obama will use all of his powers – including his veto – to defend his plan to fight climate change, the White House said, on the eve of new rules cutting carbon pollution from power plants."

"WASHINGTON -- A new government rule that promises to do more to protect streams near coal mining operations entered a critical stage this week, with coal industry lobbyists and environmentalists already lining up for battle."

"The Obama administration has decided to give states more time to comply with proposed regulations that will require dramatic cuts in greenhouse-gas pollution from power plants, people familiar with the plans said Tuesday."

"Eleven major environment and conservation groups came out against a Senate energy policy overhaul bill on Monday."