<http://schema.org/about>
"As anyone who has ever left an open can of soda out too long knows, some things are just better with a little fizz, and the world's oceans may be no exception. One physicist from Harvard University thinks that he's found a solution"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/clean-technology/scientist-says-blowing-bubbles-could-cool-the-earth.html>