Stop planting corn there. Most of the corn we produce does not go to food.
Like it or not, we're gonna have to change how we do things.
You could also go back to planting more drought resistant maize varieties and plant as 3 sisters rather than row crops. Any sweat can be redirected back to the soil.
Somebody's gonna harp about expensive and all that jazz. You wanna go hungry or not? We're going to have to adapt.
Don't like my idea? Fine. But we best get to thinking and trying things out. Food as a profit industry might have to hit the chopping block to.