Solar Power

Improved quantum dots would convert sunlight to electricity.

A green house may be attractive to homebuyers and boost your home's resale price. And in the end, you just can't put a price on the future of our planet.

A new survey of Americans reveals a dramatic change in their ranking of global warming as a top environmental problem.

Roughly 20,000 of these solar-powered vehicles could park side-by-side in a lot no wider than a human hair.

Good-bye fluorescent glare! Technique pumps natural light into your office.

Tiny and lightweight, they could one day power an iPod or any portable device.