<http://schema.org/about>
"It seems like everybody who knows the Cradle-to-Cradle principles thinks they're brilliant, yet adoption of the methodology and design philosophy seems slow. What is holding it back? William McDonough answers."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/sustainable-product-design/ask-experts-why-hasnt-cradle-to-cradle-design-caught-on-yet.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+treehuggersite+%28Treehugger%29>