This is a basic problem, to feed 6.6 billion people. Without fertilizer, forget it. The game is over.

Man seems to insist on ignoring the lessons available from history.

Some of the environmental lobbyists of the western nations are the salt of the earth, but many of them are elitists. They have never experienced the physical sensation of hunger. They do their lobbying from comfortable office suites in Washington or Brussels. If they lived just one month amid the misery of the developing world, as I have for fifty years, they would be crying out for tractors, and fertilizer, and irrigation canals, and be outraged that fashionable elitists back home were trying to deny them these things.

Even if you could use all the organic material that you have--the animal manures, the human waste, the plant residues--and get them back on the soil, you couldn't feed more than 4 billion people. In addition, if all agriculture were organic, you would have to increase cropland area dramatically, spreading out into marginal areas and cutting down millions of acres of forests.

The destiny of world civilization depends upon providing a decent standard of living for all mankind.

There are no miracles in agricultural production.

We are 6.6 billion people now. We can only feed 4 billion. I don't see 2 billion volunteers to disappear.