Scientists create engine that is powered entirely by evaporation
June 29, 2015, 3:37 a.m. by Bryan Nelson
Technology could be used to generate electricity or even propel tiny toy cars.
Big utilities are ready to go small
June 18, 2015, 3:53 p.m. by Terry Tamminen
As climate change and politics make large-scale energy difficult, energy providers are thinking local.
With Solar Energy Research Center, we're one step closer to making fuel from sunlight and CO2
May 27, 2015, 4:45 p.m. by Lloyd Alter
Steven Chu makes the understatement of the week when he calls it 'a very big deal.'
Philips' latest bright idea is a no-frills $5 LED bulb
April 22, 2015, 5:45 p.m. by Matt Hickman
Talk about an Earth Day special: Philips unveils the most affordable 60-watt equivalent LED yet.
Battling climate change requires actions big and small
April 22, 2015, 2:09 p.m. by Ruth Greenspan Bell and Elke U. Weber, Environmental Health News
Regulations can make a difference but we must also change how people live their everyday lives to have any real impact.
Cities around the world to dim lights for Earth Hour
March 27, 2015, 4:12 p.m. by Michael d'Estries
More than 7,000 cities in 172 countries are expected to take part in the 1-hour event on Saturday.
Bright and stormy night: Clouds make cities lighter
February 20, 2015, 3:45 p.m. by Becky Oskin, LiveScience
Light pollution bouncing off clouds could have an adverse effect on plant and animals.
Bionic leaf can convert solar energy into liquid fuel
February 13, 2015, 3:36 a.m. by Bryan Nelson
Photovoltaic cells convert the sun's energy into electricity — but what if solar energy could instead be converted directly into liquid fuel?