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By comparing the cost of the 19th Century revolution in sanitation to the future cost of a clean energy system, Richard Alley says we can afford to make the change.
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Last Updated
Nov. 19, 2013
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This material is based in part upon work supported by the National Science Foundation under Grant No. 0917564. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of the National Science Foundation.