Using farmland for ethanol is a lousy idea since ethanol puts out less energy, much less than gasoline. Biodiesel is the only alternative fuel that makes sense since we can get so much more energy from it and we can use waste products to make it! Ethanol costs way to much for what you get and is not worth the effort since it would never pay for itself if it wasn't being subsidised by the taxpayers!

Which brings me back to the one effort that will work, birth control and population growth controls!