Marketplace Marketplace

with Kai Ryssdal

Marketplace for Wednesday, Oct.31, 2007

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Power from pond scum

Al Darzins, a senior manager at the National Renewable Energy Laboratory in Golden, Colo.
Michael Montgomery American RadioWorks
A Wal-Mart store in in Oakland, Calif.
Justin Sullivan, Getty Images

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Kai Ryssdal

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Marketplace® is your liaison between economics and life. Noted for timely, relevant and accessible coverage of business news across both audio and digital platforms, Marketplace programs are heard by more than 14 million weekly listeners. This makes the Marketplace portfolio the most widely heard business or economic programming in the country.