From a post entitled "How much longger will our Chinese food be delivered?"
Behind the green facade of the farm gate lies one of the most energy-intensive industries in the world. From fertilizer to farm machinery, most modern agriculture is really about making hydrocarbons edible. No matter what the crop, the most important input is always energy — and it’s getting to be more so every day. Driven by ever greater fertilizer use and farm mechanization, energy represents half the cost of growing wheat (up from 30 per cent only a decade ago), and over 40 per cent of the cost of growing corn or sorghum.Mr Rubin recommends getting used to local produce as the days of cheap energy are almost over. I predict that not only will we be eating local food, industrial agri business will not survive peak oil. As small farms are more productive, we will probably be tending small farms by hand - without fertilizers made from and with light sweet crude. We may even be keeping chickens in our back yard as Vancouverites are premitted to do!