<http://schema.org/about>
"Manmade wetlands could be one solution to buffering agricultural fertilizer runoff before it creates 'dead zones' in the ocean, according to the results of a 15 year study."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/ocean-conservation/artificial-wetlands-could-be-affordable-method-buffering-agricultural-runoff.html>