<http://schema.org/about>
"Natural human optimism leads one to hope that hazardous chemicals wastes discarded by humans are broken down in the natural environment, until they are once again harmless. When scientists concern"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/clean-water/fertilizer-runoff-linked-to-developmental-and-reproductive-toxicity.html>