<http://schema.org/about>
"Today's New York Times introduces us to the concept of grass banks, a brainchild of the Nature Conservancy. The Conservancy offers use of their land for cattle grazing in exchange for ranchers adopting sustainable grazing practices and taking steps to"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/economics/grass-banks-sustainability-or-stopgap.html>