New energy from old sources

Energy from our prairies

A new study in the journal Nature suggests that prairie grass may be a more efficient and practical source for biofuel than soy or even corn.

Guests

• David Tilman: Director of Cedar Creek Natural History area and chair of the Ecology Department at the University of Minnesota.

More from MPR

• Ethanol is no cure-all for energy problems
  July 10, 2006

Resources

• Nature: "Prairies Could Fuel the Future"
• About David Tilman