In the New Yorker: Deal Sweeteners (Nov 11).
...Unfortunately, the ethanol produced in the U.S. comes from a less-than-ideal source: corn. Corn ethanol’s “net energy balance”—the amount of energy it yields in proportion to how much energy goes into its production—is significantly lower than that of other alternatives, and modern corn farming isn’t easy on the land. By contrast, ethanol distilled from sugarcane is much cheaper to produce and generates far more energy per unit of input—eight times more, by most estimates—than corn does. In the nineteen-seventies, Brazil embarked on a program to substitute sugar ethanol for oil. Today, every gallon of gas in Brazil is blended with at least twenty per cent of ethanol, and many cars run on ethanol alone, at half the price of gasoline.
What’s stopping the U.S. from doing the same? In a word, politics. The favors granted to the sugar industry keep the price of domestic sugar so high that it’s not cost-effective to use it for ethanol. And the tariffs and quotas for imported sugar mean that no one can afford to import foreign sugar and turn it into ethanol, the way that oil refiners import crude from the Middle East to make gasoline. Americans now import eighty per cent less sugar than they did thirty years ago. So the prospects for a domestic-sugar ethanol industry are dim at best.
We could, of course, simply import sugar ethanol. But here, too, politics has intervened: Congress has imposed a tariff of fifty-four cents per gallon on sugar-based ethanol in order to protect corn producers from competition. A recent study by Amani Elobeid and Simla Tokgoz, scientists at Iowa State University, projected that if the tariffs were removed prices would fall by fourteen per cent and Americans would use almost three hundred million gallons more of ethanol...
...Our current policy is absurd even by Washington standards: Congress is paying billions in subsidies to get us to use more ethanol, while keeping in place tariffs and quotas that guarantee that we’ll use less...
I learned about this column from "Bad Economic Policy, Bad Energy Policy, and Bad Foreign Policy" (Economist's View, Nov 20).
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