<http://schema.org/about>
"Let's just say up front that nobody claims the Inauguration will be deep green - events like this, by their very nature, require a huge amount of car and plane travel, entailing a corresponding belch"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/five-ways-obamas-inauguration-festivities-will-be-green.html>