David Crane of NRG, a supporter of distributed energy, thinks wind and solar will part ways because wind needs transmission and distributed solar doesn't.
Fossil fuel cheerleaders take note: Clean energy ain't going nowhere -- and it may prove to be the better bet in the long run.
Here's what BP doesn't want you to know about the use of Corexit after the 2010 Gulf of Mexico spill.
Facebook is putting an amazing green roof on its new building in Menlo Park. It's going to be big and elaborate. You can only see it if you get a job at Facebook.
A reader wonders which type of lightbulb is greenest. Umbra sheds some light.
You know that ammonia plant that blew up in Texas? The U.S. could soon be home to a lot more of those, thanks to low natural gas prices.
Wisconsin added just 18 megawatts of wind power capacity in 2012, compared with more than 100 in Michigan and more than 300 in Ohio.
You've seen our illustrated history of the Keystone XL pipeline. Now, you can enjoy it with snazzy sound effects.
Sens. Jeanne Shaheen and Rob Portman have a new bill that aims to improve efficiency in commercial buildings, manufacturing, and the federal government.