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by tedivm 1035 days ago
The coffee grounds are biodegradable, and that process causes CO2 and methane to be released.
2 comments

Just to clarify, methane is only released if it biodegraded by anaerobic bacteria, if it's biodegraded by aerobic bacteria it only produces CO2.
We could carbonize the biomass then cram it in a landfill and... wait that's just reburying charcoal.
My vote is for sequestering carbon as an ever-growing mountain range of diamonds.