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"Tyson Foods is trying it with partnerships with Syntroleum Corp and ConocoPhillips, now the city of Calgary is trying to get in on the act... Making"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/renewable-energy/beef-fat-turned-into-fuel-at-new-calgary-biodiesel-plant.html>