<http://schema.org/about>
"New research in Proceedings of the National Academy of Sciences shows that pre-Columbian agricultural activity in the Amazon, in what is now French Guiana, inadvertently helped increased biodiversity. Though it's"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/natural-sciences/pre-columbian-farming-helped-increase-amazon-biodiversity.html>