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Watch Now: Food Web (Video Short)

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Joan’s Blog

Should we start mining Sewage?

Gold Nugget | Credit: Geologist James St. John (https://www.flickr.com/people/jsjgeology/)

Joan talks about rare metals like gold, silver, and platinum being found in sewage!
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Next Episode On TV: April 21

This clear liquid is essential to every living creature's survival.  MORE

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