<http://schema.org/about>
"\"The prospect that global warming could reduce the ocean's oxygen has led some scientists to wonder if the predicted decline has already begun... Pauly"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/clean-technology/a-looming-oxygen-crisis-and-its-impact-on-worlds-oceans.html>