clean energy

Rich geothermal resources could replace much of Japan's shuttered nuclear power--but at the risk of spoiling its treasured onsen

Tom Wylie wants to change the way ocean researchers commute to work

Trading granite walls for giant turbines, mountaineers cash in on their rope skills to keep America's wind farms humming

Biomimicry provides design for cheaper, smaller turbines

Wind is no longer the energy source of the future. It's ready today.

Until now, rooftop solar has only worked for those with hefty electric bills and sunny roofs.

How big solar plants can save the planet without killing this desert tortoise

Institutional investors see such a bright future in solar power that they're willing to finance the panels on your rooftop

The Pentagon will no longer tolerate oil's "burden in blood."

University researchers around the country are leading us back to the future