Does anyone know about the methane emissions associated with this? It sounds like a cool / compelling way for individuals to sequester carbon but methane emissions from decomposition of the wood if they're anaerobic may dwarf the carbon gains (because methane is ~28x worse of a greenhouse gas than CO2).
It has to do with whether the wood is decomposing in the presence of oxygen or not--the bacteria that cause decomposition in anaerobic environments emit more methane than the bacteria that cause decomposition in aerobic environments.
