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.
The latest solution for congested cities is an electric, autonomous tricycle for adults.
The award-winning battery pioneer talks about the future of energy storage and the path to scaling low-cost, nontoxic batteries.