Not sustainable or cost-effectively. Not yet anyway. Look at most of the bio-converters in the US. They're expensive, usually down for one reason or another, an

Not sustainable or cost-effectively. Not yet anyway. Look at most of the bio-converters in the US. They're expensive, usually down for one reason or another, and half the time they end up killing their microorganisms via failing to filter out byproduct like cyanide gas: http://www.biofuelsdigest.com/bdigest/2014/09/05/on-the-mend-why-ineos-bio-isnt-reporting-much-ethanol-production/ http://www.biofuelsdigest.com/bdigest/2014/09/05/on-the-mend...