Here’s some food for thought:

THE GREAT DEBATE OVER CORN-BASED ETHANOL FUEL

Scientist have found that the amount of energy that corn-based ethanol provides is actually less than the amount of energy it takes to grow the corn and manufacture the ethanol in the first place. In contrast, sugar beets produce two times as much energy, and sugar cane yields eight times as much energy as is needed to produce the ethanol. Legislation has passed in the U.S. that subsidizes corn-based ethanol production. Should this legislation be revoked in favor of other types of biofuels, or should it stay in place to support U.S. corn farmers?