Where does the CO2 come from?

[AztecWilliam]

And how much of it are we humans responsible for? (I'll ignore for the moment the question of whether CO2 is really as bad as some say.) I just found this (emphasis mine) . . .

Psiewell

@franzliebkind @psiewell @spodso @southernsurfer according to skeptical science, a pro-global warming site, the oceans produce 332 GT of CO2 and biomass decomposition produces 439 GT while human activity emitts only 29 GT...that means we produce 3.9% of CO2 that makes up only .04% of the atmosphere

(Found in this piece . . . www.newrepublic.com/article/119585/plaquemines-louisiana-environmental-disaster-land-vanishing)

AzWm

[davdesid]

CO2 is so "yesterday". The alarmist whackos are shifting to methane.

www.youtube.com/watch?v=5XYiC6n0CCk

[AztecBill]

Massive amounts of CO2 is absorbed and emitted by the Earth yearly. How much is absorbed and how much is emitted is based upon many factors. When the two are not equal the CO2 ratio in the atmosphere changes. One of the factors that determine the amounts is energy in the system. That energy is reflected in temperature. Higher temperatures should produce higher CO2 ratios. How much CO2 increases and how fast based upon temperature is not known. It is assumed to be over long periods based upon CO2 trapped in ice. But there are some who question how CO2 reacts to pressure at great depth. It could be that it disperses making CO2 levels become more of an average over great periods of time than measurements at a distinct point of time. If we have a long period of cooling and a delayed reduction of CO2 even with man producing more co2, it would add data that would help define more about the process.