Results 71 to 80 of about 355 (146)

Observation of Decadal Natural Ocean Alkalinity Enhancement in the South China Sea

Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.
Abstract Ocean alkalinity enhancement (OAE) is a process of artificially increasing the alkalinity of seawater, chemically allowing the ocean to permanently absorb more carbon dioxide (CO2) from the atmosphere and reverse some of the chemical changes resulting from CO2‐induced acidification. However, the long‐term real impacts of OAE on ocean carbonate
Hon‐Kit Lui
wiley   +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

Using Variable Chlorophyll-a Fluorescence to Assess the Impact of Ocean Alkalinity Enhancement on the Photochemical Efficiency of Phytoplankton [PDF]

Ocean Alkalinity Enhancement (OAE) is a potential carbon dioxide removal strategy to mitigate climate change by enhancing oceanic carbon uptake. This thesis contributes to the biological risk assessment of OAE by examining its effects on phytoplankton ...
Egert, Marie
core  

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

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

KOSMOS 2022 Bergen mesocosm study on ocean alkalinity enhancement: carbonate chemistry , CO2 flux data and calcification estimates [PDF]

A Large-scale mesocosm experiment was conducted in the temperate fjord ecosystem near Bergen, Norway during late spring 2022 to investigate the effects of OAE on biogeochemical processes and organisms under close-to-natural conditions.
Schulz, Kai Georg, Ortiz Cortes, Joaquin, Schneider, Julieta, Riebesell, Ulf, Moras, Charly, Marín-Samper, Laura, Kittu, Leila   +6 more
core   +1 more source

Using magnesium hydroxide for ocean alkalinity enhancement: elucidating the role of formation conditions on material properties and dissolution kinetics

Frontiers in Climate
Mg(OH)2 holds potential as an alkalinity source for Ocean Alkalinity Enhancement (OAE). In this study, Mg(OH)2 was produced via precipitation from the alkalinity exchange of NaOH addition into brine.
Cody Shaw, Mallory C. Ringham, Mallory C. Ringham, Brendan R. Carter, Brendan R. Carter, Brendan R. Carter, Michael D. Tyka, Matthew D. Eisaman, Matthew D. Eisaman   +8 more
doaj   +1 more source

Magnesium hydroxide addition reduces aqueous carbon dioxide in wastewater discharged to the ocean

Communications Earth & Environment
Ocean alkalinity enhancement (OAE) reduces the concentration of dissolved carbon dioxide (CO2) in seawater, leading to atmospheric carbon dioxide removal (CDR).
Vassilis Kitidis, Stephen. A. Rackley, William. J. Burt, Greg. H. Rau, Samuel Fawcett, Matthew. Taylor, Glen Tarran, E. Malcolm S. Woodward, Carolyn Harris, Timothy Fileman   +9 more
doaj   +1 more source

Resilience to Alkalinity Perturbations Reveals Ecosystem Stability under Ocean Alkalinity Enhancement

Ocean-Land-Atmosphere Research
Ocean alkalinity enhancement (OAE) is a leading climate mitigation strategy for atmospheric carbon dioxide removal, with theoretical potential to sequester gigatons of CO2 annually while counteracting ocean acidification.
Yuanhao Liu, Xuechao Wang, Ruoyu Niu, Xin Huang, Xunying Zhou, Huiquan Li, Gang Li, Mark J. Hopwood, Shengwei Hou   +8 more
doaj   +1 more source

Investigating the effect of silicate- and calcium-based ocean alkalinity enhancement on diatom silicification [PDF]

Biogeosciences
Gigatonne-scale atmospheric carbon dioxide removal (CDR) will almost certainly be needed to supplement the emission reductions required to keep global warming between 1.5–2 °C.
A. Ferderer, A. Ferderer, K. G. Schulz, U. Riebesell, K. G. Baker, K. G. Baker, Z. Chase, L. T. Bach   +7 more
doaj   +1 more source