The US is only the world's largest producer of corn, and of that, 40% is turned into fuel (ethanol) and 36% is fed to animals. 20% is exported, where again a s

The US is only the world's largest producer of corn, and of that, 40% is turned into fuel (ethanol) and 36% is fed to animals. 20% is exported, where again a significant amount is used for animal feed & ethanol. So meat and maybe gas would become slightly more expensive but the world would most certainly not starve.