Gimme some sugar

Ethanol has potential.
Still some problems, but still beats on oil on its worst day.
"Q . Are there disadvantages?
A . Yes. Ethanol is not readily available.
There's no energy-efficient infrastructure -- such as a pipeline -- to distribute ethanol. It has to be shipped by rail or truck, which requires more energy. The U.S. Department of Energy estimates the cost of shipping ethanol accounts for 30 percent to 35 percent of the price.
Broad use of ethanol would mean turning more farmland to corn production. Corn has a high soil erosion rate; growing corn means more damage to topsoil and increased deforestation, according to the Center for Global Food Issues."
http://www.detnews.com/apps/pbcs.dll/article?AID=/20060619/AUTO01/606190343