<http://schema.org/about>
"Now that oil is trading for half of what it was last summer, will investors want to put their money into alternative energy sources? We look at the data."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/money/green-workplace/stories/as-oil-prices-drop-will-it-be-so-easy-to-be-green>