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The Sensitivity of the Marine Carbonate System to Regional Ocean Alkalinity Enhancement [PDF]

Frontiers in Climate, 2021
Ocean Alkalinity Enhancement (OAE) simultaneously mitigates atmospheric concentrations of CO2 and ocean acidification; however, no previous studies have investigated the response of the non-linear marine carbonate system sensitivity to alkalinity ...
Daniel J. Burt, Daniel J. Burt, Friederike Fröb, Tatiana Ilyina   +3 more
doaj   +7 more sources

Alkalinity enhancement with sodium hydroxide in coastal ocean waters [PDF]

Scientific Reports
Carbon Dioxide Removal (CDR) is increasingly recognised as essential for achieving net zero emissions to limit the impacts of climate change. Ocean Alkalinity Enhancement (OAE) presents a potentially scalable marine CDR (mCDR) technique.
Cathryn A. Wynn-Edwards, Wayne D.N. Dillon, John Akl, Craig Neill, Harris J. Anderson, Hui Sheng Lim, Mathieu Mongin, Elizabeth H. Shadwick   +7 more
doaj   +4 more sources

Assessing the effectiveness of ocean alkalinity enhancement on carbon sequestration and ocean acidification

FACETS
As atmospheric carbon dioxide (CO2) levels continue to rise, increasing attention is focussed mitigation techniques that could enhance the natural draw down of CO2. One such mitigative intervention is ocean alkalinity enhancement (OAE).
Katherine R. Martin, Anna Nickoloff, Leslie Moffat, Andrew J. Weaver, Michael Eby   +4 more
doaj   +4 more sources

High frequency in situ total alkalinity measurement for monitoring ocean alkalinity enhancement field trials [PDF]

Communications Engineering
Ocean alkalinity enhancement increases seawater alkalinity to boost carbon dioxide uptake. We report the first field deployment of an autonomous Lab-on-a-Chip total alkalinity analyzer during an ocean alkalinity enhancement trial using magnesium ...
Alireza Zabihihesari, Will Burt, Colin Sonnichsen, Shahrooz Motahari, Alex Whitworth, Robert Izett, Caroline Fradette, Douglas Wallace, Vincent Sieben   +8 more
doaj   +2 more sources

Microbial responses to ocean alkalinity enhancement in seasonally hypoxic coastal sediments [PDF]

Frontiers in Microbiology
BackgroundEnhanced benthic weathering (EBW) is a promising marine carbon dioxide removal (mCDR) strategy, where alkaline minerals are added to the seafloor.
Stefanie Böhnke-Brandt, Rebecca Bährle-Wunsch, Michael Fuhr, Andrew W. Dale, Janina Fuß, Sonja Geilert, Mirjam Perner   +6 more
doaj   +2 more sources

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   +3 more sources

Maximizing the Detectability of Ocean Alkalinity Enhancement (OAE) While Minimizing Its Exposure Risks: Insights From a Numerical Study

Earth's Future
Ocean alkalinity enhancement (OAE) can potentially remove gigatons of CO2 from the atmosphere for durable storage in the ocean. Before implementing OAE at climate‐relevant scales, questions about its safety and verifiability must be addressed ...
Bin Wang, Arnaud Laurent, Qiantong Pei, Jinyu Sheng, Dariia Atamanchuk, Katja Fennel   +5 more
doaj   +2 more sources

A novel methodology to characterize the potential impacts of electrochemical ocean alkalinity enhancement on juvenile coho salmon (Oncorhynchus kisutch)

Frontiers in Climate
Ocean alkalinity enhancement (OAE) includes a branch of marine carbon dioxide removal (mCDR) methods that add alkalinity to the surface ocean, leveraging the ocean's vast natural ability to capture and store atmospheric CO2.
Mallory C. Ringham, Matthew P. Galaska, Michelle Knowlen, Michelle Knowlen, Jeremy Loretz, Tyson Minck, Todd Pelman, Nathan Soccorsy, Kyla Westphal, Jay Word, Jay Word   +10 more
doaj   +3 more sources

Substantial Limitations of Ocean Alkalinity Enhancement in Mitigating the Negative Impacts of Ocean Acidification on Marine Calcifiers [PDF]

Environmental Science & Technology
Nicolas Gruber, Nina Bednaršek, Jens Daniel Müller   +2 more
exaly   +2 more sources

Winners and Losers Under Hydroxide-Based Ocean Alkalinity Enhancement in a Tasmanian Plankton Community [PDF]

Journal of Phycology
Ruth S Eriksen, Lennart Thomas Bach, Aaron Ferderer   +2 more
exaly   +2 more sources