<http://schema.org/about>
"The Obama administration formally made its pledge to reduce emissions in the United States 17% below 2005 by 2020 levels yesterday. This is in accordance to the pledge he put forth at the Copenhagen talks, and is intended to"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/uss-17-emissions-reduction-pledge-its-official-or-at-least-formal.html>