Energy

Home thermostats have undergone a serious makeover, but they're only as good at curbing energy consumption as humans are -- for now.

9 | April 11, 2013 3:00am | By Mary Catherine O'Connor

HONG KONG -- Hong Kong is said to have one of the brightest night skies in the world, and it's not coming from the stars.

April 11, 2013 3:00am | By Vanessa Ko

Spending on business travel is expected to be on the rise this year.

1 | April 10, 2013 9:44am | By Tyler Falk

There's not much of the stuff in the desert. Entrepreneurs Sanuj and Rishi Kholi offer a service to "dry clean" everything from cars to skyscrapers to urinals.

April 10, 2013 3:57am | By Mark Halper

EcoMotors, the five-year-old startup backed by Bill Gates, has partnered with Zhongding Holding Co. to build a $200 million engine factory in China.

April 9, 2013 10:51am | By Kirsten Korosec

Has the solar trade dispute between China and Europe crossed a line?

2 | April 9, 2013 10:48am | By Charlie Osborne

Industrial companies cry "we want the cheap fracked gas to ourselves" as U.S. fuel producers line up the overseas tankers. Big Industry vs. Big Industry. Who wins?

5 | April 9, 2013 5:52am | By Mark Halper

Foreign investors are playing a larger role in the U.S. shale industry. They're willing to pay cash upfront in exchange for a stake in shale plays and a little education.

2 | April 8, 2013 2:32pm | By Kirsten Korosec

Most future population growth will occur in cities. To make them more livable, Kent Larson is developing technologies for shared-use vehicles and tiny apartments that feel twice as big.

1 | April 8, 2013 3:00am | By Christina Hernandez Sherwood

The energy exerted by runners at the Paris Marathon won't be wasted. Here's how.

7 | April 5, 2013 9:17am | By Tyler Falk

James Hansen has been campaigning against global warming for decades. He retired as boss of NASA's Goddard Institute of Space Studies this week, giving lift-off to his latest call for nuclear.

20 | April 5, 2013 3:41am | By Mark Halper

A French architecture firm has designed an aquatic farm in the Indian Ocean to help absorb excess carbon dioxide.

12 | April 4, 2013 1:36pm | By Janet Fang

How many Americans approve of the Keystone XL pipeline project, and does this relate to their political views?

3 | April 4, 2013 6:51am | By Charlie Osborne

Thousands of Philips LED bulbs now light up -- and help preserve -- the masterful paintings at Amsterdam's famous Rijksmuseum. Controlled by an iPad, no less.

9 | April 3, 2013 3:11am | By Mark Halper

U.S. natural gas prices are rising, while wind and solar are growing rapidly. The global transition to mostly renewable grid power may now be unstoppable.

45 | April 3, 2013 3:00am | By Chris Nelder

A new windmill design has no moving parts. Here's how it works.

30 | April 2, 2013 1:28pm | By Tyler Falk

It's not just aerial defense that can combat low-flying drones.

3 | April 2, 2013 9:00am | By Charlie Osborne

South Africans have fought corruption for generations, but a new cohort of anti-corruption activists are going online. Corruption Watch looks to empower citizens to fight local graft.

1 | April 2, 2013 3:00am | By Dave Mayers

Tesla just announced that vehicle sales have exceeded targets. It will soon pay back government loans.

12 | April 1, 2013 10:22am | By David Worthington

Centralized power grids are becoming less reliable. That means a growing market for microgrids.

1 | April 1, 2013 10:08am | By Tyler Falk