The nuclear industry's efforts to keep aging plants operating highlight questions about nuclear power’s future in the U.S.
The future emissions of China and India are of huge global concern, but richer countries are responsible for most of the carbon dioxide humans have added to the atmosphere.
Led by Bill Gates, a group of tycoons will put billions of dollars into clean-energy technology.
In the absence of energy storage, solar energy can’t grow without decreasing its own value.
A climate scientist argues that it should no longer be acceptable to dump carbon dioxide in the sky.
Heading into the latest round of international climate negotiations, renewed optimism around country emissions pledges is clouded by still-gloomy warming forecasts.
Startup Pavegen has already installed floor tiles to harness the power of footsteps; now it wants to put that technology inside your shoes.
Even as computer models grow more powerful and more precise, they remain uncertain as to regional effects.
The Department of Energy will help startups navigate the testing and licensing process—but some nuclear entrepreneurs doubt it will be enough.
Synthetic porous materials that flex to take up and release fuel could lead to cheaper natural-gas cars that don’t need cumbersome storage tanks.