Indeed, 40% of US corn is used for ethanol so the potential effect could be huge. However, there's a lot of movement afoot in the ethanol industry for using ca

Indeed, 40% of US corn is used for ethanol so the potential effect could be huge. However, there's a lot of movement afoot in the ethanol industry for using carbon capture. My guess is given the Ag lobby biofuel will be retained for some time.