Mapping the global variation in the efficiency of ocean alkalinity enhancement for carbon dioxide removal
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Subduction and diapycnal mixing depend on oceanographic conditions that vary by location, seasonally, interannually, and with weather.
“Both processes depend on oceanographic conditions that vary by location, as well as seasonally, interannually, and with weather. 59,61”
From A framework for understanding efficiency losses of Ocean Alkalinity Enhancement (2026) · cites this paper as [59]
In less ideal locations, equilibration may take significantly longer (>15 years) as shallow overturning and a deep mixed layer decrease ∆pCO2.
“However, in less ideal locations, equilibration may take signific antly longer (>15 years) as shallow overturning and a deep mixed layer decrease ∆pCO 2. 59”
From A framework for understanding efficiency losses of Ocean Alkalinity Enhancement (2026) · cites this paper as [59]
Complete equilibration of added alkalinity with the atmosphere can take anywhere from months to decades, depending on local and regional conditions.
“Complete equilibration can take anywhere from months to decades, depending on local and regional conditions. 59”
From A framework for understanding efficiency losses of Ocean Alkalinity Enhancement (2026) · cites this paper as [59]
Efficiency losses associated with mineral sinking and precipitation to solids may occur essentially immediately, over seconds to days, whereas losses to incomplete mineral dissolution and incomplete air-sea flux will gradually decrease over time, on the scale of years.
“For example, efficiency losses associated with mineral sinking and precipitation to solids may occur essentially immediately, over the course of seconds to days, whereas losses to incomplete mineral dissolution, and incomplete air-sea flux will gradually decrease over time, on the scale of years. 15,59”
From A framework for understanding efficiency losses of Ocean Alkalinity Enhancement (2026) · cites this paper as [59]
Cites
Berner, R. A., Lasaga, A. C., & Garrels, R. M. (1983) · American Journal of Science · doi:10.2475/ajs.283.7.641 · Cited by 2,428 · cited 1× · see citing works
“OAE aims to accelerate natural rock weathering processes that regulate atmospheric CO 2 on millennial timescales 5,6 .”
Assessing ocean alkalinity for carbon sequestration
Renforth, P., & Henderson, G. (2017) · Reviews of Geophysics · doi:10.1002/2016rg000533 · Cited by 655 · see citing works
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A framework for understanding efficiency losses of Ocean Alkalinity Enhancement
Lunstrum, A., Keller, D., Hartmann, J., & Moras, C. (2026) · CDRxiv · doi:10.70212/cdrxiv.2026517.v1 · Cited by 1 · see citing works
- Authors
- Zhou, M., Tyka, M. D., Ho, D. T., Yankovsky, E., Bachman, S., Nicholas, T., Karspeck, A. R., & Long, M. C.
- Affiliations
- University of Connecticut (US)
- Google (United States) (US)
- University of Hawaiʻi at Mānoa (US)
- [C]Worthy (US)
- NSF National Center for Atmospheric Research (US)
- Corresponding author
- Zhou, Mengyang
- Tyka, Michael D.
- ORCID
- Venue
- Nature Climate Change
- Published
- 2024-11-08
- Volume
- 15
- Issue
- 1
- Pages
- 59-65
- ISSN
- 1758-678X (ISSN-L)
- 1758-6798
- OpenAlex
- W4404162551
- Cited by
- 63
- References
- 2
- Citations by year
- 2026: 38 · 2025: 23 · 2024: 2
- FWCI
- 11.13
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Nature Climate Change (publishedVersion)
- Topics
- Physical Sciences › Environmental Science › Global and Planetary Change › Climate Change and Geoengineering
- Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal ecosystems
- Physical Sciences › Environmental Science › Environmental Engineering › CO2 Sequestration and Geologic Interactions
- Keywords
- ocean alkalinity enhancement, carbon dioxide removal, ocean carbon uptake, CO2 sequestration
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