It’s possible, but its not being used on a large-enough scale to really see any results at this point. It’s fascinating that such an old technology could find new life through pyrolysis. Biochar it’s argued, could remove circulating CO2 from the atmosphere and stores it in virtually permanent soil carbon pools, making it a carbon-negative process. The process could be used, for instance, on beetle-kill trees in Colorado and elsewhere to keep them from releasing CO2 as they decompose. The result would be a decrease in atmospheric CO2.
According to Wikipedia, “Modern biochar is being developed using pyrolysis to heat biomass in the absence of oxygen in kilns. Modern biochar production can be combined with biofuel production in a process that may produce 3 to 9 times more energy than invested, is carbon-negative (withdraws more carbon from the atmosphere than it releases) and rebuilds geologicalcarbon sinks.”
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