Alternative fuel studies.

Interesting article about the value of both ethanol and biodiesel. It's hard on both, but still shows more of the advantages of biodiesel.

Excerpt from the article:
"The study, done by researchers at the University of Minnesota and at St. Olaf College in Northfield, Minn., points to the environmental benefits of the biodiesel over ethanol made from corn, stating that ethanol provides 25 percent more energy a gallon than is required for its production, while soybean biodiesel generates 93 percent more energy.
The study's authors also found that ethanol, in its production and consumption, reduces greenhouse gas emissions by 12 percent, compared with fossil fuels. Biodiesel, they said, reduces such emissions 41 percent, compared with fossil fuels."

What these studies fail to consider are other biodiesel sources. There are other crops that give better, cheaper yields per acre. Also it totally overlooks waste vegetable oil (WVO) which is presently a waste material, but a great biodiesel source.

Snapshot of http://www.nytimes.com/2006/07/13/business/13ethanol.html