GOP lawmakers are pushing bills to limit the amount of biofuels in the nation's energy supply and axe requirements that gasoline producers use ethanol.
Methane leaks are "super low-hanging fruit": Fixing them may be the single biggest step the U.S. could take toward meeting its emissions-reduction goals.
After getting slammed last summer, ethanol producers are hoping to catch a break -- but their fate is far from settled.
Homes ripped apart by Sandy are proving to be magnets for bargain hunters -- but not everyone is getting a good deal.
3D printing could slash the carbon footprint of manufacturing and provide nifty solutions for a disaster-prone world.
If only a fraction of predicted global warming happens, the East Coast could be in for a rough century.
Waxman and several other Democratic lawmakers are grinding out bills that would make polluters pay for their greenhouse gas emissions.
Two years after Fukushima, some U.S. nuclear power plants are still having meltdown scares.
New research takes the deepest dive ever into historic climate records -- and comes up still blaming humans for recent warming.