Interesting, I hadn't realized pyrolysis (used to produce biochar) does not release CO2. Seeing "pyro" (Greek for "fire") I had assumed oxidation. Sounds like

Interesting, I hadn't realized pyrolysis (used to produce biochar) does not release CO2. Seeing "pyro" (Greek for "fire") I had assumed oxidation. Sounds like a good technique for making the wood "indigestible" for microorganisms. I wonder if it's worth doing energywise, compared with just burying it somewhere.