Results 61 to 70 of about 189 (133)

An assessment of ocean alkalinity enhancement using aqueous hydroxides: kinetics, efficiency, and precipitation thresholds [PDF]

Biogeosciences
Ocean alkalinity enhancement (OAE) is a promising approach to marine carbon dioxide removal (mCDR) that leverages the large surface area and carbon storage capacity of the oceans to sequester atmospheric CO2 as dissolved bicarbonate (HCO3-).
M. C. Ringham, M. C. Ringham, N. Hirtle, C. Shaw, X. Lu, J. Herndon, J. Herndon, B. R. Carter, B. R. Carter, M. D. Eisaman, M. D. Eisaman   +10 more
doaj   +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

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

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

Reassessing the climate mitigation benefits and environmental risks of coastal seaweed farming

Discover Oceans
Seaweed farming is increasingly promoted as a nature-based solution for marine carbon dioxide removal (mCDR), offering the dual promise of climate mitigation and ecosystem enhancement.
Yingxu Wu, Yanmei Liu, Di Qi
doaj   +1 more source

Ocean alkalinity enhancement in a coastal channel: simulating localised dispersion, carbon sequestration and ecosystem impact

Environmental Research Communications
Ocean Alkalinity Enhancement (OAE) is a proposed marine carbon dioxide removal (mCDR) method that has the potential to sequester CO _2 at the gigaton scale.
H J Anderson, M Mongin, R J Matear
doaj   +1 more source

Microbial responses to ocean alkalinity enhancement in seasonally hypoxic coastal sediments

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   +1 more source

An analysis of commercialization pathways for acoustic verification of carbon sequestration in seagrass meadows [PDF]

Seagrass meadows are among the planet’s most efficient natural carbon sinks, capable of sequestering carbon dioxide (CO₂) at rates exceeding those of many terrestrial ecosystems.
Mitchell, Scott R.
core   +2 more sources

Brucite-inspired ocean alkalinity enhancement alters the biogeochemistry and composition of a phytoplankton community: a Santa Barbara channel case report

Environmental Research Letters
The dramatic impacts of global climate change have driven marine carbon dioxide removal innovation, including ocean alkalinity enhancement (OAE), in an attempt to keep global warming under 2 °C.
Zoë S Welch, Sylvia M Kim, Michael Liu, An Bui, Jesse Grigolite, Janice L Jones, M Débora Iglesias-Rodríguez   +6 more
doaj   +1 more source