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Diesels Come Clean

Scientific American
Narrated by: Sal Giangrasso
Length: 25 mins
3.5 out of 5 stars (12 ratings)

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Publisher's Summary

Energy-efficient diesel engines are nearly as green as hybrids, thanks to improved technology, exhaust scrubbers, and a new fuel. This article from the March 2007 edition of Scientific American explains.
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  • ©2007 Scientific American

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