From the article: Some experts say the food-based ethanol demand for biofuels is outpacing supply, which translates to more expensive food.
Since 2001, corn grown to produce ethanol in the United States has increased by 300 percent. And the price of a bushel of corn has risen from about $1.50 in 2001 to about $5 or $6 today.
The professor says other plants should be developed...
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