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exp erin pond scum fuels audis future_00002001.jpg
exp erin pond scum fuels audis future_00002001.jpg

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    Pond scum fuels Audi's future

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Pond scum fuels Audi's future

German car company Audi figured out a way to fuel a car with pond scum. Erin Burnett reports.

Pond scum fuels Audi's future

German car company Audi figured out a way to fuel a car with pond scum. Erin Burnett reports.