If you want to sell the climate change fight, make it about personal health.
A Silicon Valley startup run by old-school technologists has invented an energy storage device that could take an entire neighborhood off the grid.
The U.S. government finally faces the fact that we won't be powering our cars with corncobs any time soon.
The search giant makes a big wind energy buy from Buffett's MidAmerican Energy as the industry's future hinges on the extension of a key tax credit.
The country is emerging as an innovator in green tech.
A $100 million fund gives homeowners low-cost loans for energy efficiency upgrades to one of the biggest sources of global warming – their houses.
MIT scientists argue that nukes can be tsunami-proofed by towing them out to to sea.
A California startup is letting anyone invest in loans to let homeowners go solar.
Meet 'photoswitches,' a breakthrough set of materials that act as their own batteries, absorbing energy and releasing it on demand.
Americans have not always desired new sources of energy. Demand has needed to be created, and this has never been easy.
Scientists in America's industrial heartland are making automotive metals and fuel in sunshine-powered furnaces.
Silicon Valley renewable-energy company SolarCity has started installing lithium-ion battery packs to help companies cut their utility bills.
The five biggest economies are also the five biggest carbon polluters.
North Carolina's Duke Energy wants to sell renewable energy directly to power-hogging companies like Google.
While world leaders gather in Warsaw to fight climate change, their governments spend half a trillion dollars on carbon subsidies.