The methane gas is cleaned with carbon filters. It's burned in a fuel cell power plant and the end result is electricity. America has more than 7,000 landfills. Spiegel says that's enough methane to power nearly five million homes. Tests of the generator show promise.
Supporters say it's the sweet smell of success.
The EnvironMinute is produced in cooperation with the National Safety Council and made possible by the Teresa and H. John Heinz III Foundation.