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Why diversity rules

Experiment shows how a multitude of species gets the job done

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4:30pm, April 6, 2011

A novel experiment in cleaning nitrate pollution out of water gives a new look at what’s so powerful about the diversity of life.

In lab setups that mimicked freshwater streams’ lazy pools and rushing freshets, a mix of algal species proved more than four times as efficient at taking up nitrates than a sin

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