Plus, these developments could be a boon for the green energy sector.

The “Solar Impulse of the seas” starts a historic 6-year journey next year.

The five turbines of the Deepwater Wind project in Rhode Island are now complete.

A pipeline carrying natural gas to Mexico from Texas will across remote ranches more than a century old.

As California's solar power production heats up, an unusual market has emerged.

Meg Jacobs details the effects of U.S. dependency on foreign oil in her new book.

They said it couldn't be done: Nuclear fusion. We visit scientists building a clean power plant that's hotter than the sun — but can they ever deliver? Then: the strange world of cold fusion, the people who hate it and the billionaires betting on it.

Peabody Energy may join several other coal companies in bankruptcy court as coal demand and prices fall.

Innovator, sports and restaurant enthusiast...cheater?