Taking Measure of Biofuel Limits
By Thomas R. Sinclair
When pinning hopes on biofuels, an energy-hungry world must adapt to plant production capacities and resource limits
This Article From Issue
September-October 2009
Volume 97, Number 5
Page 400
DOI: 10.1511/2009.80.400
In a justified rush to cut fossil fuel consumption, some nations are embracing biofuels as a petroleum alternative at the gas pump. Using sugarcane, Brazil already produces 24.5 billion liters of ethanol a year to fuel car and truck engines. In the United States, annual ethanol production has reached 40 billion liters, or 10 billion gallons.
Paulo Fridman/Corbis
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