<http://schema.org/about>
"CoolEarth, a company we've briefly covered before, has created an innovative way to harness the sun's energy. Instead of large expensive solar panels or costly concentrating mirrors, the company is using balloons made of metalized plastic films. Half"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/renewable-energy/coolearth-raises-21-million-for-solar-balloons.html>