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Old 08-24-2013, 05:14 PM   #99 (permalink)
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Cool Planet's Carbon Negative Fuel Cycle (really a virtuous topsoil spiral, but whatevs)
Maybe not ethanol—this produces 100 octane gas-o-line.

Not just for plastics anymore. You can use depolymerization on the sludge they dredge out of harbors.
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