Source: http://online.wsj.com/video/when-it-rains-it-pours--raw-sewage/09CCE8F6-36B5-47D6-B456-9EBDF6816374.html
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Ever wonder how raw sewage and floating garbage end up in New York City's waterways? WSJ's Christina Tsuei reports on how combined sewer overflows work and how the city plans to use green techniques to improve its waters.
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