Anaerobic decomposition mostly produces methane, but aerobic decomposition mostly produces CO2. What happens in nature is mostly aerobic. If you have a compost

Anaerobic decomposition mostly produces methane, but aerobic decomposition mostly produces CO2. What happens in nature is mostly aerobic. If you have a compost pile, you turn it periodically to keep it aerobic. https://aggie-horticulture.tamu.edu/earthkind/landscape/dont-bag-it/chapter-1-the-decomposition-process/ https://aggie-horticulture.tamu.edu/earthkind/landscape/dont...