<http://schema.org/about>
"The National Football League has announced that it will be offsetting pretty much all of Super Bowl XLV's energy expenditures this year -- an amount that evidently adds up to a staggering 15,000"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/nfl-to-offset-15000-mw-hours-sucked-down-by-super-bowl-xlv.html>