Research in the past had already shown that the Fourth World agricultural model which is very popular today, i.e. based on heavily-regulated certified organic farming, is unsustainable. The only real solution to the problem of industrial agriculture is that a lot more people have to grow food, both for sale and at home. There simply aren't enough farmers to have a small, local, organic farm everywhere. The solution to the problem of industrial agriculture is thus Fifth World agriculture, which is do-it-yourself (DIY) agriculture where the producer(s) and the consumer(s) are the same person(s).