Results 41 to 50 of about 1,525,095 (150)

Interactions between ocean alkalinity enhancement and phytoplankton in an Earth system model [PDF]

Biogeosciences
The functioning and efficiency of ocean alkalinity enhancement (OAE) as a CO2 removal strategy is well investigated in model studies, but risks for the ecosystem are presently not considered in models.
M. Seifert, C. Danek, C. Völker, J. Hauck, J. Hauck   +4 more
doaj   +1 more source

Assessing the Impacts of Simulated Ocean Alkalinity Enhancement on Viability and Growth of Cultures of Near-Shore Species of Phytoplankton

, 2023
Over the past 250 years, atmospheric carbon dioxide concentrations have risen steadily from 277 ppm to 405 ppm, leading to the exacerbation of the effects of climate change.
Oberlander, Jessica
core  

Lethal by Design? Resolving Differences Between Experimental and Real‐World Alkalinity Perturbations in Ocean Alkalinity Enhancement

Journal of Geophysical Research: Oceans, Volume 131, Issue 8, August 2026.
Abstract Ocean alkalinity enhancement (OAE) aims to mitigate climate change by increasing the chemical capacity of seawater to store anthropogenic CO2. OAE can be implemented through multiple pathways, each of which intentionally modifies marine carbonate chemistry through increases in total alkalinity (TA).
Lennart T. Bach, Michael D. Tyka, Bin Wang, Katja Fennel   +3 more
wiley   +1 more source

Influence of Deep‐Sea Carbonate Sediments on the Long‐Term Durability of Carbon Storage From Ocean Alkalinity Enhancement

Global Biogeochemical Cycles, Volume 40, Issue 8, August 2026.
Abstract Ocean Alkalinity Enhancement (OAE) is a marine carbon dioxide removal (CDR) strategy with a theoretical sequestration potential of several Gt CO2 ${\mathrm{C}\mathrm{O}}_{2}$ yr−1 ${\mathrm{y}\mathrm{r}}^{-1}$. The long‐term durability of OAE‐induced carbon storage depends on the persistence of the added alkalinity in the ocean, which is ...
Sina Acksen, Wolfgang Koeve, Markus Pahlow, Christopher J. Somes, Andreas Oschlies   +4 more
wiley   +1 more source

Evaluating ocean alkalinity enhancement as a carbon dioxide removal strategy in the North Sea [PDF]

Biogeosciences
Ocean alkalinity enhancement (OAE) is a climate mitigation strategy aimed at increasing the ocean's capacity to absorb and store atmospheric CO2. The effect of OAE depends significantly on local physical and biogeochemical conditions, underscoring the ...
F. Liu, U. Daewel, J. Kossack, K. T. Demir, H. Thomas, H. Thomas, C. Schrum, C. Schrum   +7 more
doaj   +1 more source

Economic Assessment of Ocean Alkalinity Enhancement Through Electrodialysis: The Role of Carbon Credits in Comparing Solar Energy and Thermal Waste Technologies

Advanced Sustainable Systems, Volume 10, Issue 6, June 2026.
This study evaluates the economic feasibility of an Ocean Alkalinity Enhancement (OAE) plant with an annual CO2 removal capacity of 878 tonnes. The project is profitable only under scenarios with high carbon credit prices, while medium and low‐price scenarios yield a negative net present value.
Idiano D'Adamo, Gabriele Graziano, Francesco Ferella   +2 more
wiley   +1 more source

On the Efficiency and Durability of Purposefully Sinking Seaweed Biomass as a Marine Carbon Dioxide Removal Strategy

Earth's Future, Volume 14, Issue 5, May 2026.
Abstract Large‐scale farming and purposeful sinking of seaweed has been suggested as a marine Carbon Dioxide Removal (mCDR) strategy. Farmed seaweed uptakes dissolved inorganic carbon (DIC) from the mixed layer, resulting in a CO2 deficit that causes an influx of atmospheric CO2 into the surface ocean.
Michaela Sten, Kana Yamamoto, Tim DeVries, Sebastian J. E. Krause, David A. Siegel   +4 more
wiley   +1 more source

Upper‐Ocean Variability of the Marine Carbonate System in the Northeast Pacific

Global Biogeochemical Cycles, Volume 40, Issue 5, May 2026.
Abstract In the Northeast Pacific, the marine carbonate system's variability across timescales is not well constrained. Here, we quantify observed seasonal and non‐seasonal variability in Dissolved Inorganic Carbon (DIC), partial pressure of carbon dioxide (pCO2 ${\text{pCO}}_{2}$) and aragonite saturation state Ωa $\left({{\Omega }}_{a}\right)$ and ...
Ana C. Franco, Debby Ianson, Raffaele Bernardello, Adam H. Monahan   +3 more
wiley   +1 more source

Pathways for marine carbon dioxide removal using electrochemical acid-base generation

Frontiers in Climate
Research over the past decade has resulted in various methods for removing CO2 from the atmosphere using seawater and electrochemically generated acids and bases.
Matthew D. Eisaman, Matthew D. Eisaman
doaj   +1 more source

Monitoring, reporting, and verification for ocean alkalinity enhancement

, 2023
Monitoring, reporting, and verification (MRV) refers to the multistep process of monitoring the amount of greenhouse gas removed by a carbon dioxide removal (CDR) activity and reporting the results of the monitoring to a third party. The third party then
Ho, David, Neukermans, Griet, Bach, Lennart T., Long, Matthew, Bopp, Laurent, Boyd, Philip W., Palter, Jaime, Long, Matthew C., Bach, Lennart, Ho, David T., Palter, Jaime B., Boyd, Philip   +11 more
core   +1 more source