Results 51 to 60 of about 1,525,095 (150)

Slaking quicklime with seawater for open-ocean alkalinity enhancement: technical feasibility and cost implications

Frontiers in Climate
Scalable carbon dioxide removal (CDR) solutions, such as ocean alkalinity enhancement (OAE), are necessary to mitigate climate change. One OAE approach is open-ocean liming, consisting in distributing hydrated lime (Ca(OH)2) to increase seawater ...
Manon T. Duret, Manon T. Duret, Connor Clark, Kenton Heidel   +3 more
doaj   +1 more source

Potential Impacts of Climate Interventions on Marine Ecosystems

Reviews of Geophysics, Volume 64, Issue 1, March 2026.
Abstract Rising global temperatures pose significant risks to marine ecosystems, biodiversity, and fisheries. Recent comprehensive assessments suggest that large‐scale mitigation efforts to limit warming are falling short, and all feasible future climate projections, including those that represent optimistic emissions reductions, exceed the Paris ...
Kelsey E. Roberts, Tyler Rohr, Morgan R. Raven, Michael S. Diamond, Daniele Visioni, Ben Kravitz, Ryan Heneghan, Colleen M. Petrik, Daniele Bianchi, Kelly Ortega‐Cisneros, Monica A. Morrison, Vanessa van Heerden, Nicola A. Wiseman, Gouri Anil, Zachary J. Cannizzo, Marta Coll, Joshua Coupe, Ryan Freedman, Kristen Krumhardt, Lester Kwiatkowski, Nicole S. Lovenduski, Jessica Y. Luo, Holly C. Olivarez, Alan Robock, Jeroen Steenbeek, Cheryl S. Harrison   +25 more
wiley   +1 more source

Stability assessment of calcium carbonate dissolution as a marine carbon dioxide removal mechanism

Frontiers in Marine Science
Ocean Alkalinity Enhancement (OAE) is a promising approach for removing carbon dioxide from the atmosphere by increasing seawater alkalinity. However, the effectiveness of OAE depends on avoiding the precipitation of calcium carbonate (CaCO3) that would ...
Amanda B. Melendez-Perez, Kimberly Gilbert, Tyler Cyronak   +2 more
doaj   +1 more source

Impulse response functions as a framework for quantifying ocean-based carbon dioxide removal [PDF]

Biogeosciences
Limiting global warming to 2 °C by the end of the century requires dramatically reducing CO2 emissions, and also implementing carbon dioxide removal (CDR) technologies.
E. Yankovsky, E. Yankovsky, M. Zhou, M. Tyka, S. Bachman, S. Bachman, D. T. Ho, D. T. Ho, A. Karspeck, M. C. Long, M. C. Long   +10 more
doaj   +1 more source

Contrasting carbon dioxide removal potential and nutrient feedbacks of simulated ocean alkalinity enhancement and macroalgae afforestation

Environmental Research Letters, 2023
Alongside cuts to emissions, hundreds of gigatons of carbon dioxide removal (CDR) are likely to be required to limit global warming to below 1.5 °C or 2 °C this century.
Lester Kwiatkowski, Manon Berger, Laurent Bopp, Stéphane Doléac, David T Ho   +4 more
doaj   +1 more source

A Revised Estimate of Calcium Carbonate Dissolution in Coastal and Shelf Sediments Suggests Large Shelf Exports in the Marine CaCO3 Cycle

Global Biogeochemical Cycles, Volume 40, Issue 3, March 2026.
Abstract Calcium carbonate (CaCO3) dissolution plays a key role in the marine carbon and alkalinity cycles and the regulation of atmospheric CO2 levels across geological time scales. Until now, most attention has focused on dissolution in the deep sea, while dissolution in coastal and shelf environments remains poorly constrained.
Cedric Goossens, Sebastiaan J. van de Velde, Filip J. R. Meysman   +2 more
wiley   +1 more source

Social considerations and best practices to apply to engaging publics on ocean alkalinity enhancement

, 2023
Ocean alkalinity enhancement (OAE) seeks to increase the alkalinity of seawater for carbon dioxide removal (CDR). Following numerous propositions to trial, test, or upscale OAE for CDR, multiple social considerations have begun to be identified.
Nawaz, Sara, Satterfield, Terre, Boettcher, Miranda   +2 more
core   +1 more source

Plankton do not care: Minimal effects of ocean liming on plankton growth and grazing in the Eastern Mediterranean

Limnology and Oceanography, Volume 70, Issue S2, Page S242-S257, December 2025.
Abstract Increasing CO2 emissions have led to the development of CO2 removal strategies to counteract ocean acidification. Among these, ocean alkalinity enhancement techniques, particularly ocean liming, may represent a promising approach to restore seawater pH and boost CO2 sequestration.
Claudia Traboni, Ariadna C. Nocera, Filomena Romano, Justine Courboulès, Christos Chantzaras, Iordanis Magiopoulos, Selene Varliero, Daniela Basso, Paraskevi Pitta   +8 more
wiley   +1 more source

A high-resolution nested model to study the effects of alkalinity additions in Halifax Harbour, a mid-latitude coastal fjord [PDF]

Biogeosciences
Surface ocean alkalinity enhancement (OAE), through the release of alkaline materials, is an emerging marine carbon dioxide removal technology that could increase the storage of anthropogenic carbon in the ocean.
A. Laurent, B. Wang, D. Atamanchuk, S. Rakshit, S. Rakshit, K. Azetsu-Scott, C. Algar, K. Fennel   +7 more
doaj   +1 more source

Early Career Recommendations for the Equitable Growth of a Marine Carbon Dioxide Removal Sector

Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract In addition to steep carbon emission reductions, all modeled pathways to reach global climate goals require carbon removal. Marine carbon dioxide removal has the potential to play a large role in drawing down legacy anthropogenic emissions due to the scalability and durability of proposed methods.
G. D. Kitch, P. J. Duke, K. C. Grabb, S. Simancas‐Giraldo, F. O. Adekunbi, C. I. Addey, L. A. Arbilla, A. C. O. Carvalho, S. N. Chu, R. A. Green, S. Hamnca, A. Ghosh, A. Kirkland, K. B. Lowder, M. Meléndez, M. Fontela, K. Robache, M. C. Ringham, J. Rønning, K. M. Schockman, M. M. Stoll, R. Renó de Oliveira, E. K. Wright‐Fairbanks   +22 more
wiley   +1 more source