<http://schema.org/about>
"Our friends at Grist have an excellent post: it explains that the ways to fight pollution and global warming and the ways to fight heart disease (#1 cause of death in the US and probably in most western countries) and other health problems converge."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/green-food/fight-global-warming-and-improve-your-health.html>