Earth's FutureOcean alkalinity enhancement (OAE) can potentially remove gigatons of CO2 from the atmosphere for durable storage in the ocean. Before implementing OAE at climate‐relevant scales, questions about its safety and verifiability must be addressed ...
Bin Wang +5 more
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Modeling considerations for research on Ocean Alkalinity Enhancement (OAE)
State of the Planet, 2023 Abstract. The deliberate increase of ocean alkalinity (referred to as Ocean Alkalinity Enhancement or OAE) has been proposed as a method for removing CO2 from the atmosphere. Before OAE can be implemented safely, efficiently, and at scale several research questions have to be addressed including: 1) which alkaline feedstocks are best suited and in what
Katja Fennel +11 more
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Stability of alkalinity in ocean alkalinity enhancement (OAE) approaches – consequences for durability of CO 2 storage [PDF]
Biogeosciences, 2022 Abstract. 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. The real-world application of OAE, however, remains unclear as most basic assumptions are untested.
Jens Hartmann +8 more
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Guide to Best Practices in Ocean Alkalinity Enhancement Research (OAE Guide 23)
, 2023 Ocean alkalinity enhancement (OAE) is a marine carbon dioxide removal (CDR) approach. Publicly funded research projects have begun, and philanthropic funding and start-ups are collectively pushing the field forward.
Gattuso, J. P. +7 more
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Technical note: Ocean Alkalinity Enhancement Pelagic Impact Intercomparison Project (OAEPIIP) [PDF]
BiogeosciencesOcean alkalinity enhancement (OAE) aims to transfer carbon dioxide (CO2) from the atmosphere to the ocean by increasing the capacity of seawater to store CO2.
L. T. Bach +4 more
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The additionality problem of ocean alkalinity enhancement [PDF]
BiogeosciencesOcean 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
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Ocean alkalinity enhancement in an estuary [PDF]
Frontiers in ClimateA high-resolution numerical ocean model is used to assess ocean alkalinity enhancement (OAE) in the San Francisco Bay (SFB) estuary. A novel tracer-based approach is introduced to simulate alkalinity release and the subsequent CO2 ingassing. The model is
Minna Ho +6 more
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Growth response of Emiliania huxleyi to ocean alkalinity enhancement [PDF]
BiogeosciencesThe 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 +4 more
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Microbial ecosystem responses to alkalinity enhancement in the North Atlantic Subtropical Gyre [PDF]
Frontiers in Climate, 2022 In addition to reducing carbon dioxide (CO2) emissions, actively removing CO2 from the atmosphere is widely considered necessary to keep global warming well below 2°C.
Adam V. Subhas +6 more
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On the emission-path dependency of the efficiency of ocean alkalinity enhancement [PDF]
Environmental Research LettersOcean alkalinity enhancement (OAE) deliberately modifies the chemistry of the surface ocean to enhance the uptake of atmospheric CO _2 . The chemical efficiency of OAE (the amount of CO _2 sequestered per unit of alkalinity added) depends, among other ...
Jörg Schwinger +2 more
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