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What if the food vs. fuel problem: http://en.wikipedia.org/wiki/Food_or_fuel (I.E where creation of bio fuels leads to higher food prices and famine in developing countries) occurred earlier, perhaps in the 60s or 70s? For this to happen, there would have to be something that would trigger high gas prices, leading to higher demand for Ethanol. What would the POD have to be? What would the consequences be?