The atmospheric residency time of carbon dioxide is five years and it is quickly sequestered into plants, marine life, oceans and sediments.
Residence Time vs. Adjustment Time of Carbon Dioxide in the Atmosphere - PMID: 36832750 - PMCID: PMC9955352 - DOI: 10.3390/e25020384 [...] We study the concepts of residence time vs. adjustment time time for carbon dioxide in the atmosphere. The system is analyzed with a two-box first-order model. Using this model, we reach three important conclusions: (1) The adjustment time is never larger than the residence time and can, thus, not be longer than about 5 years. (2) The idea of the atmosphere being stable at 280 ppm in pre-industrial times is untenable. (3) Nearly 90% of all anthropogenic carbon dioxide has already been removed from the atmosphere. [...] - - van der Ent R.J., Tuinenburg O.A. The residence time of water in the atmosphere revisited. Hydrol. Earth Syst. Sci. 2017;21:779–790. doi: 10.5194/hess-21-779-2017. - DOI - - Cawley G.C. On the Atmospheric Residence Time of Anthropogenically Sourced Carbon Dioxide. Energy Fuels. 2011;25:5503–5513. doi: 10.1021/ef200914u. - DOI - - Stocker I.T.F., Qin D., Plattner G.K., Tignor M.M., Allen S.K., Boschung J., Nauels A., Xia Y., Bex V., Midgley P.M., editors. Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press; Cambridge, UK: 2013.