Hey! Greenies! Taking good care of yourselves? Watching your diet? Exercising? Taking those probiotics to strengthen your gut biome and digestion? Well, cut it out! You’re part of the problem here.
Among the critters that metabolically produce CO2 are bacteria. As far as I can find out, every creature on Earth that has a mouth has a gut. And nearly every gut’s biome contains bacteria, some more densely populated or more varied than others. Those bacteria give off CO2 as part of simply living. That CO2 escapes the bacteria’s host’s body during the process of elimination, usually through an anal orifice.
