Results 61 to 70 of about 344 (143)

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

Carbonate System Site Selection Characteristics for Ocean Alkalinity Enhancement in the US Northeast Shelf and Slope

Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 12, December 2025.
Abstract Ocean alkalinity enhancement (OAE) is a marine carbon dioxide (CO2) removal strategy that relies on lowering the ocean's pCO2 via the addition of alkaline materials to facilitate enhanced CO2 uptake with the potential for durable, long‐term, storage.
Jennie E. Rheuban, Heather H. Kim, Ke Chen, Ivan D. Lima, Daniel C. McCorkle, Anna P. M. Michel, Zhaohui Aleck Wang, Adam V. Subhas   +7 more
wiley   +1 more source

Black shale deposition during the Early Jurassic: Geochemistry of Pliensbachian and Toarcian sedimentary rocks of the Hunzen Well, Hils Syncline, Northwest German Basin

The Depositional Record, Volume 11, Issue 5, Page 1451-1478, November 2025.
Our research uses a multidisciplinary approach, including organic and inorganic geochemistry, biostratigraphy, carbon isotope geochemistry and organic petrography to reconstruct depositional conditions and organic matter accumulation during the Pliensbachian and Toarcian.
Premila Wijesinghe, Ralf Littke, Linda Burnaz, Martin Blumenberg, Jochen Erbacher, Thomas Mann, Florian Amann, Thorsten Bauersachs   +7 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

Effect of Model Resolution on Air‐Sea CO2 Equilibration Timescales

Global Biogeochemical Cycles, Volume 39, Issue 10, October 2025.
Abstract Marine Carbon Dioxide Removal (mCDR) will likely play a role in efforts to keep global warming below 2°C. mCDR methods create a deficit in dissolved seawater CO2 relative to the unperturbed counterfactual. This seawater CO2 deficit induces either an uptake of atmospheric CO2 or reduced CO2 outgassing into the atmosphere. The immediate climatic
Yinghuan Xie, Paul Spence, Stuart Corney, Michael D. Tyka, Lennart T. Bach   +4 more
wiley   +1 more source

Model-based assessment of carbon dioxide removal effect through different ocean alkalinity enhancement technologies [PDF]

E3S Web of Conferences
This study investigates the long-term impacts of Ocean Alkalinity Enhancement (OAE) on global carbon cycling and climate systems under the high-emission SSP5-8.5 scenario using the UVic Earth System Climate Model (UVic_ESCM).
Yang Chonggang, Feng Ellias Y.
doaj   +1 more source

The Role of Summer Temperature on Aquatic Insect Diversity at Multi‐Decadal Scales Within the Holocene

Global Change Biology, Volume 31, Issue 8, August 2025.
We show that regionally across Europe during the last 10,000 years, there is a significant negative relationship between summer temperature and aquatic insect diversity. However, at local, low‐frequency intervals of the same period, we observe only a minor relationship between summer temperature and aquatic insect diversity.
Ashley M. Abrook, Peter G. Langdon, Gordon N. Inglis, Achim Brauer, Paul Lincoln, Roseanna Mayfield, Antti E. K. Ojala, Celia Martin‐Puertas   +7 more
wiley   +1 more source

Biological response of eelgrass epifauna, Taylor's Sea hare (Phyllaplysia taylori) and eelgrass isopod (Idotea resecata), to elevated ocean alkalinity [PDF]

Biogeosciences
Marine carbon dioxide removal (mCDR) approaches are under development to mitigate the effects of climate change by sequestering carbon in stable reservoirs, with the potential co-benefit of local reductions in coastal acidification impacts.
K. Jones, L. G. Hemery, N. D. Ward, N. D. Ward, P. J. Regier, M. C. Ringham, M. D. Eisaman, M. D. Eisaman   +7 more
doaj   +1 more source

Future Scenarios of Global Fisheries and Ocean Alkalinity Enhancement Under Socio‐Economic and Climate Pathways

Earth's Future, Volume 13, Issue 7, July 2025.
Abstract Achieving global climate goals while ensuring food security in a changing climate presents significant challenges, particularly when relying solely on land‐based solutions. Covering over 70% of the Earth's surface, the ocean remains an underutilized resource for climate mitigation.
Hans Sloterdijk, Caroline Grünhagen, Rudi Voss, Patricia Grasse, David P. Keller, Linda Kleemann, Lotta Clara Kluger, Kira Lancker, Wilfried Rickels, Ulf Riebesell, Renato Salvatteci, Andreas Oschlies, Jörn O. Schmidt, Natascha Oppelt, Katrin Rehdanz, Marie‐Catherine Riekhof   +15 more
wiley   +1 more source

KOSMOS 2023 Helgoland mesocosm study on ocean alkalinity enhancement: dissolved inorganic nutrients, chlorophyll a and suspended particulate organic matter

We conducted a mesocosm study to investigate ecosystem responses to ocean alkalinity enhancement (OAE) in the temperate waters of the German North Sea on Helgoland in spring 2023.
Riebesell, Ulf, Tammen, Juliane Katharina, Faucher, Giulia, Kittu, Leila, Ludwig, Andrea   +4 more
core   +1 more source