If, hypothetically, all U.S. cars ran on 100 percent corn-based ethanol, and if one Ivy League professor's analysis is correct, then 97 percent of the entire country's land area -- including real estate now occupied by cities -- would be needed to grow corn.
Why are we stuck on corn again?
Look at the UNH study.
we found that to replace all transportation fuels in the US, we would need 140.8 billion gallons of biodiesel, or roughly 19 quads (one quad is roughly 7.5 billion gallons of biodiesel).
If you look at how much solar energy we recieve at the surface of the earth.
According to Tim Murphy physics professor at UCSD, we currently receive 500 times as much energy as we consume. (page 16)
We don't need 97% of the surface to make a massive dent in our energy consumption. When california institued rolling blackouts during the last energy crisis, energy consumption droped by 30% almost over night.
It seems simple: reduce unnecessary consuption or support the war (and spend 250 million dollars/day, let's see that's about 10 million gallons of fuel/day!).
Our military is in a war on terrorism in Iraq and Afghanistan with an
enemy who is fueled by our gasoline purchases. So we are financing
both sides in the war on terror.