<http://schema.org/about>
"Amtrak is the latest company to try to put waste products of factory farming to use as fuel. Smart Planet reports that for the next year Amtrak will test biodiesel made from beef tallow on it's Heartland Flyer route from Fort Worth, Texas"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/renewable-energy/mooving-on-down-the-line-amtrak-testing-beef-fat-biodiesel-on-texas-to-oklahoma-route.html>