<http://schema.org/about>
"At our back-of-house email meetings TreeHugger's writers have been debating the merits of various carbon offset schemes. One of the reoccurring themes to surface was that of transparency, of where the money was going. Particularly as most such offset"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/lawn-garden/carbon-planet-a-transparent-carbon-offsetter.html>