<http://schema.org/about>
"This should serve as an indication of how old and toxic some of our nation's coal-fired power plants are: Just a day after the EPA announced its new proposal for limiting the amount of toxic emissions power plants can spew"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/epas-new-pollution-rules-take-down-two-dirty-old-coal-plants.html>