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Biofuel Tradeoff

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Biofuels like ethanol have been touted by nations such as Brazil as an answer to the world’s energy crisis, but research from CNR economists suggests that the costs of ethanol may outweigh the benefits of cheaper gas prices.

Ethanol, a colorless chemical compound made from distilling crops such as corn, sugar cane, and maize, can be blended with gasoline or used by itself as a more affordable alternative fuel for cars and other machinery. An economic analysis by agriculture and resource economics professor David Zilberman shows that a U.S. ethanol production subsidy saved U.S. gasoline consumers $11 billion and saved gasoline consumers in the rest of the world $36.3 billion in 2006.

However, according to Zilberman’s report, “Biofuel Challenge: Filling the Tank without Emptying the Stomach,” there is an economic downside to ethanol. Its use has already resulted in a surge in the price of grains, meat, and soda, among other commodities. For example, the average price of corn in 2006 increased $0.52 per bushel due to the demand for corn for ethanol production. The higher corn prices cost U.S. consumers $4.4 billion, and consumers outside the U.S. $1.1 billion, making ethanol production potentially devastating to third world countries.

“Much of the discussion about ethanol focuses on benefits such as lessening carbon emissions and boosting farm income, but the potential benefit to everyone who drives in this country is substantial,” said Zilberman. “Of course, there is also the tradeoff for food. The poor may go hungry so that the rich can drive their SUVs more cheaply.”

-Stephanie Ludwig


Try biofuels from another source: aquatic weeds. The poor parts of the world are choked with them. Some of what is available is food grade, but the weeds all collect pollutants, so serious study must be done before making them into the staple that at least Typha could be. Almost all of this biomass can be made into fuel. Typha (cattails) appears to be the most exploitable. It is available by the gigaton. Its clearance would help with troubles ranging from flooding to malaria. The infestation in the Lake Chad basin in Africa is what is driving the expansion of the Sahel. These dessication machines can only be checked by a market as insatiable as energy. Their resilience will overwhelm anything but a profit.

posted by Stephen Klaber | 2009-07-02 11:54:14

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