I gave one permaculture course in Botswana, and now my students are out in the bloody desert in Namibia teaching Bushmen - whose language nobody can speak - to be very good permaculture people.

You won't get cooperation out of a hierarchical system. You get enforced directions from the top, and nothing I know of can run like that.

Say you're working for a big overseas aid organization. You can't leave home in a Mercedes Benz, travel 80 kilometers to work in a great concrete structure where there are diesel engines thundering in the basement just to keep it cool enough for you to work in, and plan mud huts for Africa! You can't get the mud huts right if you haven't got things right where you are. You've got to get things right, working for you, and then go and say what that is.

It’s a revolution. But it’s the sort of revolution that no one will notice. It might get a little shadier. Buildings might function better. You might have less money to earn because your food is all around you and you don’t have any energy costs. Giant amounts of money might be freed up in society so that we can provide for ourselves better. So it’s a revolution. But permaculture is anti-political. There is no room for politicians or administrators or priests. And there are no laws either. The only ethics we obey are: care of the earth, care of people, and reinvestment in those ends.

I think it's pointless asking questions like "Will humanity survive?" It's purely up to people - if they want to, they can, if they don't want to, they won't.

The greatest change we need to make is from consumption to production, even if on a small scale, in our own gardens. If only 10% of us do this, there is enough for everyone. Hence the futility of revolutionaries who have no gardens, who depend on the very system they attack, and who produce words and bullets, not food and shelter.

There are a few societies that show signs of having been very rational about the physics of construction and the physics of real life. Some of the old middle-Eastern societies had downdraft systems over whole cities, and passive, rapid-evaporation ice-making systems. They were rational people using good physical principles to make themselves comfortable without additional sources of energy.