Global ocean carbon cycle
Wanninkhof, R.; Trinanes, J.A.; Landschützer, P.; Jersild, A.; Feely, R.A.; Carter, B.R. (2024). Global ocean carbon cycle, in: Blunden, J. et al. State of the Climate in 2023. Bulletin of the American Meteorological Society, 105(8): pp. S198-S213
In: Bulletin of the American Meteorological Society. American Meteorological Society: Easton, Pa.. ISSN 0003-0007; e-ISSN 1520-0477, more
Related to:Feely, R.A.; Wanninkhof, R.; Carter, B.R.; Landschützer, P.; Sutton, A.J.; Cosca, C.; Triñanes, J.A. (2019). Global ocean carbon cycle, in: Blunden, J. et al. State of the climate 2018. Bulletin of the American Meteorological Society, 100(9): pp. S94-S99, more
Feely, R.A.; Wanninkhof, R.; Landschützer, P.; Carter, B.R.; Trinanes, J. (2020). Global ocean carbon cycle, in: Blunden, J. et al. State of the climate 2019. Bulletin of the American Meteorological Society, 101(8): pp. S170-S174, more
Feely, R.A.; Wanninkhof, R.; Landschützer, P.; Carter, B.R.; Triñanes, J.A. (2017). Global ocean carbon cycle, in: Blunden, J. et al. State of the climate in 2016. Bulletin of the American Meteorological Society, 98(8): pp. S89-S92, more
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| Authors | | Top |
- Wanninkhof, R.
- Trinanes, J.A.
- Landschützer, P., more
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- Jersild, A.
- Feely, R.A.
- Carter, B.R.
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| Abstract |
The oceans play a major role in the global carbon cycle by taking up a substantial fraction of the excess carbon dioxide that humans release into the atmosphere. As a consequence of humankind’s collective carbon dioxide (CO2) release into the atmosphere, referred to as anthropogenic CO2 (Cant) emissions, the atmospheric CO2 concentration has risen from pre-industrial levels of about 278 ppm (parts per million) to 419.3±0.1 ppm in 2023 (see section 2g1 for details). Marine Cant is the major cause of anthropogenic ocean acidification. Over the last decade the global ocean has continued to take up Cant and therefore is a major mediator of global climate change. Of the 10.9±0.8 Pg C yr−1 Cant released during the period 2013−22, 2.8±0.4 Pg C yr−1 (26%) accumulated in the ocean, 3.3±0.8 Pg C yr−1 (28%) accumulated on land, and 5.2±0.02 Pg C yr−1 (46%) remained in the atmosphere, with an imbalance of −0.4 Pg C yr−1 (−3%; see Table 7 in Friedlingstein et al. 2023). This decadal Cant uptake estimate is a consensus view from a combination of measured ocean decadal CO2 inventory changes, global ocean biogeochemical models, and global air–sea CO2 flux estimates based on surface ocean fugacity of CO2 (fCO2w)1 measurements. |
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