<http://schema.org/about>
"Despite global recession, and for the tenth straight year, CO2 emissions keep rising. Reuters reports that German renewable energy institute IWR has calculated that global CO2 emissions rose 1.94% in 2008, up to 31.5 billion"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/co2-emissions-rose-2-in-2008-curbing-industrial-activity-not-the-solution-german-institute-says.html>