Results 51 to 60 of about 182 (126)

Mechanisms of air–sea CO₂ exchange in the central Baltic Sea [PDF]

Atmospheric Chemistry and Physics
Air–sea gas exchange regulates the cycling of climate-relevant gases such as carbon dioxide (CO2), yet significant uncertainties remain in its quantification. The gas transfer velocity (K), a key parameter for estimating CO2 flux, is usually expressed as
Y. Dong, Y. Dong, C. A. Marandino, R. Dobashi, D. T. Ho, G. Rehder, H. C. Bittig, J. Karnatz, B. Sabbaghzadeh, H. Czerski, A. Engel   +10 more
doaj   +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

Seawater carbonate chemistry considerations for ocean alkalinity enhancement research: theory, measurements, and calculations

, 2023
Ocean alkalinity enhancement (OAE) is a proposed marine carbon dioxide removal (mCDR) approach that has the potential for large-scale uptake of significant amounts of atmospheric carbon dioxide (CO2). Removing anthropogenic legacy CO2 will be required to
Bach, Lennart T., Schulz, Kai G., Dickson, Andrew G.   +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

Can coastal and marine carbon dioxide removal help to close the emissions gap? Scientific, legal, economic, and governance considerations

In this Policy Bridge, we present the key issues regarding the safety, efficacy, funding, and governance of coastal and marine systems in support of climate change mitigation.
Allemand, Denis, Oloyede, Mary, Hilmi, Nathalie, Thomas, Helmuth, Ho, David T., McDonald, Natasha, Algarin, L. Delvasto, Lebleu, Lara, van Doorn, Erik, Johnson, Martin, Swarzenski, Peter, Marandino, Christa, Safa, Alain   +12 more
core   +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 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

Simulated Earth system response to acid downwelling as a form of ocean alkalinity enhancement

Environmental Research Letters
‘Acid downwelling’ (AD) is a proposed marine carbon dioxide removal (CDR) method, which describes the idea of electrochemically splitting open ocean surface water into an alkaline solution to remain at the surface ocean and cause additional ocean CO _2 ...
E Tiwary, M Jürchott, A Oschlies
doaj   +1 more source

Assessing the limitations of commercial sensors and models for supporting marine carbon dioxide removal monitoring: a case study

Frontiers in Climate
Several unknowns remain surrounding marine Carbon Dioxide Removal (mCDR) monitoring, reporting, and verification (MRV) practices and capabilities.
Tristen Stewart, Peter Regier, Kyle E. Hinson, Carolina Torres Sanchez, Quinn Mackay, Nicholas D. Ward, Nicholas D. Ward, Jessica N. Cross   +7 more
doaj   +1 more source

Novel field trial for ocean alkalinity enhancement using electrochemically derived aqueous alkalinity

Frontiers in Environmental Engineering
Ocean alkalinity enhancement is a proposed method of marine carbon dioxide removal that enhances the ocean’s uptake of atmospheric carbon dioxide (CO2) and converts it to dissolved bicarbonate for long-term ocean storage.
Allison M. Savoie, Mallory Ringham, Carolina Torres Sanchez, Brendan R. Carter, Brendan R. Carter, Sean Dougherty, Richard A. Feely, Dave Hegeman, Julian Herndon, Julian Herndon, Tarang Khangaonkar, Tarang Khangaonkar, Jeremy Loretz, Tyson Minck, Todd Pelman, Lakshitha Premathilake, Lakshitha Premathilake, Chinmayee Subban, Chinmayee Subban, Jesse Vance, Nicholas D. Ward   +20 more
doaj   +1 more source