<http://schema.org/about>
"The EPA has said that coal ash recycling is worth more than $23 billion [PDF] a year, based on the pollution avoided and energy saved. The problem with that estimate? It's more than 20 times higher than the actual number&amp;mdash;$1.15"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/epa-cooking-the-books-for-the-coal-industry-agency-inflated-value-of-coal-ash-recycling-by-20-times.html>