we humans are a significant contributor to global warming. But, in reality, the CO2 we’re breathing out is part of a natural cycle, by which our bodies convert carbohydrates from CO2-absorbing plants into energy, plus water and CO2. As such, we’re not adding any extra CO2.
Correct. We are heterotroughs (CnH2n [different sugars and carbs] + O2 -> CO2 + H2O) and pants are autotroughs (CO2 + H2O + sunlight -> CnH2n [different sugars and carbs] + O2) we are complements and complete the carbon cycle.
I quoted an article already but here’s another:
which fully supports your statement
So human breathing is net zero because we’re just emitting carbon dioxide trapped in the food we just planted?
Unless a significant part of your diet is coal butter, yes.
Correct. We are heterotroughs (CnH2n [different sugars and carbs] + O2 -> CO2 + H2O) and pants are autotroughs (CO2 + H2O + sunlight -> CnH2n [different sugars and carbs] + O2) we are complements and complete the carbon cycle.