Re:Arithmetic error here (Score 1)

Yes, but you're also talking about used tires. ones that take up space in landfills. Wasn't it in Great Britain that a tire dump caught fire and burned for a couple of years, yielding much toxic smoke and a couple of thousand gallons (Imperial) of usable oil?

This reminds me of an article I saw in NASA Tech Briefs (a handy pub.) concerning recyclable (sp?) plastic. There are seven types of recyclable (sp?) plastic. The major problem was that they all melted at different temperatures. So, before plastic can be recycled, it needs to be separated into the seven different types. The method published in NTB eliminated that requirement. It was Pat. Pendg. I believe that was in '88.

Another problem was that the plastic industry wanted virgin plastic polymers.

I suppose that's one reason why oil from coal hasn't taken hold. After all, why take those extra couple of steps, when all you have to do is kill more Nigerians?