Instead of converting food into ethanol, what if you could just convert "excess" CO2 into ethanol - and in a single-step process? Since they started all this nonsense of food to fuel conversion, prices have gone up on everything from tacos to cornflakes and the milk you dump on the cornflakes. That's really stupid, especially at a time when "advocates" are whining about "food insecurity" and whatnot.
Scientists at the Oak Ridge National Laboratory in Tennessee have discovered a chemical reaction to turn CO2 into ethanol, potentially creating a new technology to help avert climate change.
The researchers were attempting to find a series of chemical reactions that could turn CO2 into a useful fuel, when they realized the first step in their process managed to do it all by itself. The reaction turns CO2 into ethanol, which could in turn be used to power generators and vehicles.
I'm not sure about the vehicles part, but it could possibly work as a backup to generate electricity for times when the winds aren't blowing and the sun's not shining - just grab a few politicians and have them start talking, harness the excess CO2 and convert it to ethanol, maybe put a conversion plant right there on Capitol Hill....