Cars and People Compete for Grain
At a time when excessive pressures on the earth's land and water resources are of growing concern, there is a massive new demand emerging for cropland to produce fuel for cars--one that threatens world food security. Although this situation had been developing for a few decades, it was not until Hurricane Katrina in 2005, when oil prices jumped above $60 a barrel and U.S. gasoline prices climbed to $3 a gallon, that the situation came into focus. Suddenly investments in U.S. corn-based ethanol distilleries became hugely profitable, unleashing an investment frenzy that will convert one fourth of the 2009 U.S. grain harvest into fuel for cars.
The United States quickly came to dominate the crop-based production of fuel for cars. In 2005, it eclipsed Brazil, formerly the world's leading ethanol producer. In Europe, where the emphasis is on producing biodiesel, mostly from rapeseed, some 2.4 billion gallons were produced in 2009. To meet its biodiesel goal, the European Union, under cropland constraints, is increasingly turning to palm oil imported from Indonesia and Malaysia, a trend that depends on clearing rainforests for oil palm plantations.
The price of grain is now tied to the price of oil. Historically the food and energy economies were separate, but now with the massive U.S. capacity to convert grain into ethanol, that is changing. In this new situation, when the price of oil climbs, the world price of grain moves up toward its oil-equivalent value. If the fuel value of grain exceeds its food value, the market will simply move the commodity into the energy economy. If the price of oil jumps to $100 a barrel, the price of grain will follow it upward. If oil goes to $200, grain will follow.
As the leading grain exporter and ethanol producer, the United States is in the driver's seat. It needs to make sure that efforts to reduce its heavy dependence on imported oil do not create a far more serious problem: chaos in the world food economy. The choice is between a future of rising world food prices, spreading hunger, and growing political instability and one of more stable food prices, sharply reduced dependence on oil, and much lower carbon emissions.
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