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Science Centric (9 Apr 2011 11:43 GMT) - Biologically diverse streams are better at cleaning up pollutants than less rich waterways, and Bradley Cardinale, an assistant professor at the U-M School of Natural Resources and Environment, says he has uncovered the long-sought mechanism that explains why this is so. Cardinale reports his findings in the 7 April edition of the journal Nature…
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