I attend the University of Northwestern Ohio. We have a program totally comitted to alternative fuels.As promising as these fuels are, there are some real shortcomings. Here are a few of the facts I have learned.

1 Current consumption of gasoline = 146 - 150 billion gallons ofgasoline
produced a year.

2. Currently we produce about 4 billion gallons of ethanol, increases to
about 8 billion gallons in 2012.

3.Our fuel usageincreases about 5% every year, give or take 1%

4. Ethanol is sometimes more expensive than straight gasoline.

5. Ethanol produces 30% less energy than gasoline.

So,in 2012, our production of ethanol will be 8 billion gallons, and our gas
consumption will increase to about 195 billion gallons. If my math is correct, that is slightly over 4%of consumption. If we stay on that track of consumption and production, we will not even see a difference of how much oil we use, and probably a increase. The fact that ethanol is less efficient also take a huge toll. 8 billion gallons translates to = 5.6 billion gallons of gasoline, or roughly 3% of expected consumption.

IMHO, we need to find a cost effective way to use hydrogen.