The newly weakened Senate Democratic caucus is trying to muster all the opposition it can to the impending vote on the Keystone XL pipeline.
Most coastal regions of the United States will see 30 or more days of flooding by 2050 thanks to sea-level rise, according to new research from NOAA.
Disappearing beaches, erosion, and buildings toppling into the sea are just a few problems citizens of Shishmaref, Alaska, are dealing with due to climate change.
TransCanada has teamed up with the world's largest public relations firm to promote a proposed alternative pipeline that's entirely in Canada.
A new report pins the blame for a recent spate of heat waves on human-caused climate change -- but for the California drought, the evidence is murkier.
A climate change super PAC, funded by billionaire investor Tom Steyer, backs up its sometimes zany stunts with a whole lot of cash.
The Omaha Public Power District announced that it will retire three coal units in the next two years -- thanks to public opinion and new regs.
Many of the pundits who rallied behind rancher Cliven Bundy don't seem to care as much about ranchers' property rights when it's TransCanada using eminent domain to build KXL.
Obama's interior secretary has faced an uphill battle in Washington as she tries to implement her ambitious agenda in the face of budget fights and partisan politics.