Results 51 to 60 of about 189 (133)

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

Future actions for the ocean acidification research community to support marine industries and coastal communities of Aotearoa New Zealand

New Zealand Journal of Marine and Freshwater Research, Volume 59, Issue 5, Page 1601-1620, December 2025.
ABSTRACT Increasing atmospheric CO2 emissions are altering the carbonate chemistry of seawater in a process known as ocean acidification (OA). This is a growing issue for marine industries and communities. During the 2023 New Zealand Ocean Acidification Community (NZOAC) Conference, the community undertook a horizon scanning exercise to determine ...
Rachel Hale, Lea Muetzel, Jessica Ericson, Joanna Copedo, Vonda Cummings, Norman L. C. Ragg, Christina McGraw, Kim Currie, Kirsten Rodgers, Mary A. Sewell   +9 more
wiley   +1 more source

Illuminating deep-sea considerations and experimental approaches for mCDR proposals [PDF]

As society recognizes the urgency of reducing atmospheric CO2 levels, industries and nations are increasingly considering marine carbon dioxide removal (mCDR) in their climate mitigation portfolios.
Elegbede, Isa, Yasuhara, Moriaki, Bax, Narissa, Escobar-Briones, Elva, Mestre, Nelia C, Barry, James, Hilmi, Nathalie, Thurber, Andrew R., Lidström, Susanna, Boyd, Philip W., Hetherington, Elizabeth, McCauley, Douglas J, Palacios-Abrantes, Juliano, Iglesias-Rodriguez, M Debora, Gallo, Natalya D., Alfaro-Lucas, Joan M, Metaxas, Anna, Halfter, Svenja, Boyd, Philip W, Gallo, Natalya D, Rangani, Eesha, Alfaro-Lucas, Joan M., Mwangi, Pauline Nyambura, Huffard, Christine L., Huffard, Christine L, Thurber, Andrew R, Levin, Lisa A, Hilario, Ana, Amon, Diva, Colaço, Ana, Mestre, Nélia   +30 more
core   +1 more source

Aotearoa New Zealand’s marine carbon cycle in a changing climate – Current understanding and future directions

New Zealand Journal of Marine and Freshwater Research, Volume 59, Issue 5, Page 913-956, December 2025.
ABSTRACT The marine system plays a critical role in the global climate cycle, as a major control of atmospheric carbon dioxide (CO2). Marine primary production (photosynthesis) and remineralisation of organic carbon (respiration, degradation) determine the amount of CO2 sequestered in marine sediments and deep‐water environments on century to ...
Scott D. Nodder, Cliff S. Law, Erik Behrens, Sarah J. Bury, Antonia Cristi, Charine Collins, Kim I. Currie, Moira Décima, Alain De Verneil, Pablo C. Escobar‐Flores, Denise Fernandez, Mark P. Gall, Andrés Gutiérrez‐Rodríguez, Svenja Halfter, Helen S. MacDonald, Andrew Marriner, Matthew H. Pinkerton, Graham J. Rickard, Karl A. Safi, Sarah Seabrook, Craig L. Stevens, Philip J. H. Sutton, John R. Zeldis   +22 more
wiley   +1 more source

The need to explore the potential of marine CDR with a one-earth strategy: A guide for policy-makers [PDF]

Rapid, deep and sustained reductions in carbon dioxide (CO₂) emissions are essential to achieve the goals of the Paris Climate Agreement of keeping the long-term global average surface temperature increase well below 2°C above pre-industrial levels and ...
Webb, Romany, M, Dai, Minhan, Satterfield, Terre, Boyd, Philip, W, Gattuso, Jean-Pierre, Legendre, Louis   +5 more
core   +4 more sources

How well do global ocean approaches constrain local fCO2?

Environmental Research Letters
The ocean absorbs 29% of humanity’s annual anthropogenic carbon dioxide (CO $_2$ ) emissions, and the future of climate change is strongly dependent on how this sink evolves.
Galen A McKinley, Amanda Fay, Thea H Heimdal, Lauren Moseley, Abby Shaum   +4 more
doaj   +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

Harnessing nature's buffer: Assessing the role of bivalve shells in coastal alkalinity regeneration

Limnology and Oceanography Letters, Volume 10, Issue 5, Page 774-781, September 2025.
Abstract Bivalve shells, a natural alkaline material, play a crucial role in coastal carbon cycles by influencing total alkalinity (TA) and dissolved inorganic carbon (DIC). This study investigated oyster shell dissolution in Narragansett Bay, Rhode Island, under varying pCO2 conditions, revealing TA regeneration rates of 4–56 μmol L−1 d−1, which could
Hongjie Wang, Fiona Teevan‐Kamhawi, Olivia Rebernik   +2 more
wiley   +1 more source

The effect of carbonate mineral additions on biogeochemical conditions in surface sediments and benthic–pelagic exchange fluxes [PDF]

Biogeosciences
Coastal sediments are hotspots of biogeochemical processes that are impacting subsurface and overlying water conditions. Fluid composition in sediments is altered through the mineralization of organic matter which, under oxic conditions, further lowers ...
K. Biçe, K. Biçe, T. Myers Stewart, T. Myers Stewart, G. G. Waldbusser, C. Meile   +5 more
doaj   +1 more source

The Biogeochemistry of Natural Climate Solutions Based on Fish, Fisheries, and Marine Mammals: A Review of Current Evidence, Research Needs, and Critical Assessment of Readiness

Global Biogeochemical Cycles, Volume 39, Issue 7, July 2025.
Abstract Several initiatives to conserve, restore or better manage fisheries, fishes, whales, and other marine animals have been proposed as natural climate solutions to sequester carbon from the atmosphere or avoid new emissions. We reviewed the knowledge and uncertainties surrounding carbon fluxes and storage mediated by these organisms to evaluate ...
James R. Collins, Mattias R. Cape, Robert E. Boenish, Claudia R. Benitez‐Nelson, Scott C. Doney, Rod Fujita, Steven D. Gaines, Rebecca L. Gruby, Di Jin, Heather H. Kim, Kristin M. Kleisner, Gaël Mariani, Lisa A. Moore, Andrew J. Pershing, Douglas N. Rader, Joe Roman, Grace K. Saba, James N. Sanchirico, Steven Saul, Matthew S. Savoca, Alexander Waller   +20 more
wiley   +1 more source