The latest news on alternative fuels
The secretary of energy said that agriculture is one of the great resources in the United States.
Readers like going green, but suggest studying driving habits, tax breaks, and costs.
If cars ever run on something besides gasoline, here's what they might look like.
As some plants close, the industry asks EPA to approve gasoline blends with up to 15 percent ethanol.
The bad economy won't make it easy, but the president says America is ready to change its energy ways.
These fuel sources are unusual - and some are a little icky.
Al Gore, Barack Obama, James Hansen, T. Boone Pickens and Sarah Palin all made environmental headlines in 2008.
Environmental groups are unhappy with his support of corn-based ethanol during the campaign.