<http://schema.org/about>
"For some reason (frankly, entirely lost on me) the idea of artificial trees to remove CO2 from the atmosphere seems to grab people's imagination in a way other geoengineering schemes don't. Well, over at Yale e360"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/natural-sciences/co2-scrubbing-artificial-trees-wont-save-us-need-massive-investment-colossal-infrastructure.html>