How much CO2 can we derive from decay microorganisms?

First things first. Your going to have to replicate anaerobic activity compared to aerobic. Then each type of organism each is going to produce different levels of respiration at different temperatures. Bacteria, yeast, and mold have different gradients. It all boils down to a equilibrium factor which will occur no matter what anyone thinks. As far as desertification and infertility, your dead 1000% wrong and just the opposite. But just as right with the chemical hypothesis. Salt and a dry environment will produce the same effect, among many other things. If you look at the CO2:O2 ratios nothing much has changed O2 has remained a constant. Please "ALL" alarmist explain to me and every scientist in the world,we would love to know why this remains a constant.