Human waste feeds rest stop greenhouse

A new Vermont highway rest stop has blue water in the toilets as part of a "green" system that uses tropical plants to cleanse and recycle sewage water.

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<p><a href="http://www.physorg.com/news6145.html">Human waste feeds rest stop greenhouse</a></p> <p>A new Vermont highway rest stop has blue water in the toilets as part of a "green" system that uses tropical plants to cleanse and recycle sewage water. </p>