Quote from Random.Capital:
No. At (nominal) $500/bbl oil you aren't talking "stockpiling" of food, you're talking mass starvation.
The global food system is completely reliant on petroleum, not just for shipping, but for fertilizing over-used land and wetting dried out land. At those kinds of costs, we are looking at least 1 billion people literally starving to death, and quite possibly a great many more.
You hit it on the head. Oil has allowed the huge expansion in the human population.
the reason why usa is digging deeper and deeper and the reson why they go to war is nothing else but just the oil peak. 