E85 is an alternative fuel that consists mostly of grain alcohol and a little gasoline. "... [M]ore than four million American cars and trucks have the ability to run on it right now, even though the majority of people who own these so-called flex vehicles are not even aware of the ability," writes Danny Hakim. Within the last five years, ethanol production has doubled to more than three billion gallons, but it is still hard to find. With approximately 180,000 gas stations in the country, there are only 460 that sell E85, most of them in the Midwest. Also, in order for ethanol to reduce American dependency on foreign oil, so much land would be required to grow the corn that food prices would rise, Hakim reports. In addition, E85 cannot use current gasoline pipelines because it picks up grime and water. However, with the price of regular unleaded spiking, especially in the wake of Hurricane Katrina, savings may be worth the search and extra drive, especially with the added benefit of a reduction in smog-forming pollutants and greenhouse gases, Hakim reports.