[JasonC]

Sorry, the corn is spoken for. World food output will feed rising world population through 2060 readily enough, but without much "over" to spare. World energy consumption is half the scale of all photosynthesis at this point, only a tiny fraction of the latter being human controlled agriculture. Farmland adds the most value feeding people not cars, and there are going to be plenty of people to feed.

[Tanniker Smith]

Well, that's simple. Just kill the cows. There are farms in Penn Dutch country that grow lots and lots of corn, but they feed it all to the cows. Eat the cows and make plastic from the corn.

TS