There must also be a supplemental food source to feed the planet. That food source is small farms. We have to grow our own food. This is something that farmers, ranchers, and homesteaders have known since the beginning of modern agriculture.
We are just now realizing that the agricultural model of monocrops and genetically modified, factory-farmed food is not the end-all answer to world food shortages. These methods are not sustainable and are actually detrimental to our health.