20% of the world's population using 80% of the resources
5% annual world population growth.
Financial unsustainability
The United States $65 billion monthly trade gap[verification needed]
Chemical fertilizers growing 80 bushels of wheat on an acre of ever more depleting land
Borrowing US$100,000 at 6% interest to buy a tractor to farm 10,000 acres to net US$10,000 a year.