The promoters of the global economy...see nothing odd or difficult about unlimited economic growth or unlimited consumption in a limited world.
There is a religious principle: Love thy neighbour as thyself. But it's also an economic asset. If you've got a neighbour, you've got help, and this implies another limit. If you want to have neighbours, you can't have a limitless growth economy. You have to prefer to have a neighbour rather than to own your neighbour farm.
The fertility cycle is a cycle entirely of living creatures passing again and again through birth, growth, maturity, death, and decay.
There are lots of bad things that can happen to a food economy that's both extensive and centralized. There's no substitute for petroleum. To have a growth economy based on a declining fuel supply is bound to be stressful.
