<http://schema.org/about>
"A report published last week offers a peek into the effects of global warming on the world's trees. As it turns out, early indications hint that rising temperatures and increases in CO2 emissions may actually lead to an accelerated"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/clean-technology/global-warming-makes-trees-grow-faster.html>