Are biofuels earth-friendly?

Two recent studies in the journal Science argue that biofuels like ethanol might contribute to global warming. As the U.S. looks increasingly at alternatives to fossil fuel, how much should we rely on biofuels?

Guests

• Joe Fargione: Regional science director for the Nature Conservancy.
• Timothy Searchinger: Researcher at the Woodrow Wilson School of Public and International Affairs at Princeton University.
• Bill Lee: General manager of the Chippewa Valley Ethanol Company in Benson, MN. He is the former chairman of the Renewable Fuels Association.

More from MPR

• Some biofuels can add to global warming
  February 7, 2008

Resources

• About Joe Fargione
• About Timothy Searchinger
• The Impacts of Biofuels on Greenhouse Gases: How Land Use Change Alters the Equation
• Renewable Fuels Association
• Chippewa Valley Ethanol Company