Go organic and save the planet?

I used to work in an agricultural policy ysis center, so I am somewhat familiar with this problem as well. Recent advances, and some not so recent, have made it possible for agriculturalists to grow more and more crops with higher yields to feed the world. These advances have lead to lower prices for food. If we were to go back and undo some of these changes, prices would rise, people would be starving somewhere. Maybe not in the US, but certainly to one of the many countries we export our food to. Based on what I've learned (and I'm no expert) it is not possible to go back now, unless you can replace a given method with another one that gets similar or better results.