<http://schema.org/about>
"Planting trees as a way to offset carbon emissions is a bit controversial, since a lot more has to happen to change the plight of Arctic ice than putting trees in the ground. However, reforestation is an absolute must so planting trees is pretty cool,"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/clean-technology/new-search-engine-fights-climate-change-with-trees.html>