<http://schema.org/about>
"Perhaps the best way to alert the public to the importance of sustainability is visual representation of environmental degradation. We've featured some fantastic photography of industrial pollution and melting"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/culture/stunning-dyed-silk-art-evokes-the-slow-tragedy-of-climate-change.html>