The latest news on alternative fuels
Sources of nutrients, carbon dioxide can make or break this potential renewable fuel heavyweight
Crossbreeding could produce plants filled with complex sugars that can be turned into ethanol.
Doe-eyed do-gooders aren't the face of environmentalism, the U.S. military is.
Native prairie plants could be the answer.
Could they help? Yes. But certain drawbacks could corrode the full measure of their usefulness.
Scientists seek ways to make green energy pay off.
A new EPA proposal has sparked debate over measuring greenhouse gas emissions.