a machine that makes plastic back into oil

Question is - how much energy does it take to do that? Does it take less than just pumping oil out of the ground?

This could be about as financially feasible as producing ethanol.
 
Question is - how much energy does it take to do that? Does it take less than just pumping oil out of the ground?

This could be about as financially feasible as producing ethanol.

Quoted for emphasis.
 

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