[kevkrom]

According to the EPA there are four billion metric tons of organic waste produced annually worldwide.

And that doesn't even include petro-chemical waste like junk tires and plastics, right?

[AntiGuv]

That four billion tons includes: "..solid waste and sewer sludge landfills, manure lagoons and industrial organic surface impoundments.."

[ckilmer]

According to the EPA there are four billion metric tons of organic waste produced annually worldwide.
And that doesn't even include petro-chemical waste like junk tires and plastics, right?

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From the article

"But animal scraps are only one potential source of "fuel" for Changing World's oil-making process, and the company recently reached an agreement with the three major U.S. automakers to investigate the use of auto shredder residue as a feedstock. If a second round of tests shows that the ground-up cars are suitable for thermal conversion, Appel said the company and the automakers may jointly build a plant in the Upper Midwest."