<http://schema.org/about>
"Even in the face of a worldwide economic downturn, the global wind industry posted another record year in 2009 as cumulative"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/renewable-energy/wind-power-soared-past-150000-megawatts-in-2009.html>