Global carbonate chemistry gradients reveal a negative feedback on ocean alkalinity enhancement
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While there is currently no evidence of OAE enhancing the carbonate counterpump in OAE-specific research, global ocean observations show a clear positive correlation between seawater alkalinity and calcification, suggesting that OAE may lead to increased formation of CaCO3.
“While there is currently no evidence of either process in OAE-specific research, global ocean observations show a clear, positive correlation between seawater alkalinity and calcification, suggesting that OAE may indeed lead to increased formation of CaCO3. 74”
From A framework for understanding efficiency losses of Ocean Alkalinity Enhancement (2026) · cites this paper as [74]
Cites
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
- Lehmann, N., & Bach, L. T.
- Affiliations
- University of Tasmania (AU)
- Corresponding author
- Lehmann, N.
- Venue
- Nature Geoscience
- Published
- 2025-02-12
- Volume
- 18
- Issue
- 3
- Pages
- 232-238
- ISSN
- 1752-0894 (ISSN-L)
- 1752-0908
- OpenAlex
- W4407415859
- Cited by
- 18
- References
- 1
- Citations by year
- 2026: 11 · 2025: 7
- FWCI
- 8.63
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Nature Geoscience (publishedVersion)
- Funders
- Carbon to Sea Initiative, Australian Research Council-Future Fellowship
- Topics
- Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal ecosystems
- Physical Sciences › Earth and Planetary Sciences › Oceanography › Ocean Acidification Effects and Responses
- Physical Sciences › Environmental Science › Environmental Engineering › CO2 Sequestration and Geologic Interactions
- Keywords
- ocean alkalinity enhancement, coccolithophores, calcification, carbonate chemistry, ocean acidification, particulate inorganic carbon, particulate organic carbon, nutrient stoichiometry, biogeochemical feedbacks, carbon sequestration, calcifying phytoplankton
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