<http://schema.org/about>
"This is voluntary, of course.  But there are strong incentives to make it work. Businesses that sign on get free technical support from government energy efficiency experts, better odds of saving money, and  long-range strategic"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/32-us-firms-commit-to-reduce-energy-intensity-25-percent-over-10-years.html>