If wasted food were a country, it would be the world's third largest contributor to climate change, after China and the U.S.
Soon it will be simpler for renters, schools, and others to buy renewable energy, and for people with solar panels to sell their power onto the grid.
The Obama administration is pushing to install hydropower plants at existing dams, which could boost U.S. hydropower capacity by 15 percent.
Flooding centered in Boulder, Colo., is so extreme that the National Weather Service called it "biblical." And it's just the latest climate-related disaster to strike the region.
The Shaheen-Portman bill, which has wide support, is being derailed by amendments on Keystone XL, Obamacare, and EPA power-plant regulations.
America's biggest and dirtiest industries say the government shouldn't try to tally up the climate-related costs of fossil-fuel burning.
Pennsylvania is going after the company for spilling frackwater into a river. The company responds with Orwellian logic, arguing that the case will "discourage good environmental practices."
Nearly 1 percent of U.S. power plants -- 50 of them, all fueled by coal -- produce 30 percent of the power sector's CO2 pollution.
A Washington farmer grew a GMO-free crop of alfalfa, but an exporter wouldn't take it because it appeared to have been tainted by the genetically modified variety.