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The Sensitivity of the Marine Carbonate System to Regional Ocean Alkalinity Enhancement [PDF]

Frontiers in Climate, 2021
Ocean Alkalinity Enhancement (OAE) simultaneously mitigates atmospheric concentrations of CO2 and ocean acidification; however, no previous studies have investigated the response of the non-linear marine carbonate system sensitivity to alkalinity ...
Daniel J. Burt, Daniel J. Burt, Friederike Fröb, Tatiana Ilyina   +3 more
doaj   +7 more sources

The additionality problem of ocean alkalinity enhancement [PDF]

Biogeosciences, 2023
Ocean alkalinity enhancement (OAE) is an emerging approach for atmospheric carbon dioxide removal (CDR). The net climatic benefit of OAE depends on how much it can increase CO2 sequestration relative to a baseline state without OAE.
L. T. Bach
doaj   +4 more sources

Alkalinity enhancement with sodium hydroxide in coastal ocean waters [PDF]

Scientific Reports
Carbon Dioxide Removal (CDR) is increasingly recognised as essential for achieving net zero emissions to limit the impacts of climate change. Ocean Alkalinity Enhancement (OAE) presents a potentially scalable marine CDR (mCDR) technique.
Cathryn A. Wynn-Edwards, Wayne D.N. Dillon, John Akl, Craig Neill, Harris J. Anderson, Hui Sheng Lim, Mathieu Mongin, Elizabeth H. Shadwick   +7 more
doaj   +4 more sources

Stability of alkalinity in ocean alkalinity enhancement (OAE) approaches – consequences for durability of CO₂ storage [PDF]

Biogeosciences, 2023
According to modelling studies, ocean alkalinity enhancement (OAE) is one of the proposed carbon dioxide removal (CDR) approaches with large potential, with the beneficial side effect of counteracting ocean acidification.
J. Hartmann, N. Suitner, C. Lim, J. Schneider, L. Marín-Samper, J. Arístegui, P. Renforth, J. Taucher, U. Riebesell   +8 more
doaj   +7 more sources

Growth response of Emiliania huxleyi to ocean alkalinity enhancement [PDF]

Biogeosciences
The urgent necessity of reducing greenhouse gas emissions is coupled with a pressing need for widespread implementation of carbon dioxide removal (CDR) techniques to limit the increase in mean global temperature to levels below 2 °C compared to pre ...
G. Faucher, M. Haunost, A. J. Paul, A. U. C. Tietz, U. Riebesell   +4 more
doaj   +5 more sources

A biogeochemical model of mineral-based ocean alkalinity enhancement: impacts on the biological pump and ocean carbon uptake

Environmental Research Letters, 2023
Minimizing anthropogenic climate disruption in the coming century will likely require carbon dioxide removal (CDR) from Earth’s atmosphere in addition to deep and rapid cuts to greenhouse gas emissions.
Mojtaba Fakhraee, Zijian Li, Noah J Planavsky, Christopher T Reinhard   +3 more
doaj   +2 more sources

Technology Development and Future Directions of Ocean Alkalinity Enhancement

Haiyang Kaifa yu guanli, 2023
Since the industrial revolution, nearly one-third of anthropogenic carbon dioxide emissions have been absorbed by the ocean which has a huge potential for negative emissions.
Xuefei GUO, Minji ZHANG, Wei ZHOU, Hongwei REN, Liwen ZHENG, Bei SU, Yubin HU, Jihua LIU   +7 more
doaj   +1 more source

Resilience of the gelatinous zooplankton species Oikopleura dioica to ocean alkalinity enhancement. [PDF]

PLoS ONE
Ocean alkalinity enhancement (OAE) through mineral dissolution is a promising marine carbon dioxide removal strategy because it increases the buffering capacity of seawater and thereby enhances passive storage of atmospheric CO2.
Amrita Bhaumik, Nicolás Sánchez, Silvan Urs Goldenberg, Synne Spjelkavik, María Couret, Ulf Riebesell, Maarten Boersma, Cornelia Jaspers   +7 more
doaj   +3 more sources

Electrochemical ocean alkalinity enhancement using a calcium ion battery

International Journal of Greenhouse Gas Control, 2023
The oceans play a major role in moderating atmospheric CO2 levels. Enhanced CO2 uptake into ocean waters can be achieved by the provision of appropriate cations to the surface ocean, an approach known as ocean alkalinity enhancement (OAE).
Venkataraman Thangadurai, Kunal Karan, Benjamin M Tutolo   +2 more
exaly   +2 more sources

Effects of ocean alkalinity enhancement on plankton in the Equatorial Pacific

Communications Earth & Environment
Ocean alkalinity enhancement is a potential strategy for gigatonne-scale atmospheric carbon dioxide removal. It uses alkaline substances to convert seawater carbon dioxide into (bi)carbonate, enabling uptake of additional carbon dioxide from the ...
Jiaying A. Guo, Robert F. Strzepek, Zhongwei Yuan, Kerrie M. Swadling, Ashley T. Townsend, Eric P. Achterberg, Thomas J. Browning, Lennart T. Bach   +7 more
doaj   +2 more sources