EVs are now starting to store electricity and then sell it onto the power grid when energy prices are highest.
In May, the atmospheric carbon dioxide concentration could exceed 400 parts per million -- way past the 350 level we need to be aiming for.
Silicon Valley investors are channeling money into food-related startups that aim to make agriculture more eco-friendly and food more healthful.
Manchester, a Houston neighborhood, is where tar-sands oil piped through Keystone XL would be refined. The community has enough problems already.
A bill calling for toxic oil dispersants to be used only as a last resort was quashed after the oil industry voiced its opposition.
Global warming was originally known as the Callendar Effect, in honor of an engineer who discovered it in 1938.
Foxx has improved public transit in Charlotte, N.C., starting a streetcar project and extending light rail, and he's installed electric-vehicle infrastructure.
A divestment campaign pushed by 350.org is spreading from colleges to cities. Boulder, Colo., Eugene, Ore., and Ithaca, N.Y. are also on board.
Rooftop solar systems could help keep the lights on after a terrorist attack on the power system, says the nation's top energy regulator.