Results 21 to 30 of about 1,200 (237)

Particle fluxes by subtropical pelagic communities under ocean alkalinity enhancement [PDF]

Biogeosciences
Ocean alkalinity enhancement (OAE) has been proposed as a carbon dioxide removal technology (CDR), allowing for long-term storage of carbon dioxide in the ocean.
P. Suessle, J. Taucher, S. U. Goldenberg, M. Baumann, K. Spilling, K. Spilling, A. Noche-Ferreira, A. Noche-Ferreira, M. Vanharanta, M. Vanharanta, U. Riebesell   +10 more
doaj   +3 more sources

On the emission-path dependency of the efficiency of ocean alkalinity enhancement

Environmental Research Letters
Ocean alkalinity enhancement (OAE) deliberately modifies the chemistry of the surface ocean to enhance the uptake of atmospheric CO _2 . The chemical efficiency of OAE (the amount of CO _2 sequestered per unit of alkalinity added) depends, among other ...
Jörg Schwinger, Timothée Bourgeois, Wilfried Rickels   +2 more
doaj   +5 more sources

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   +2 more sources

Earth system responses to carbon dioxide removal as exemplified by ocean alkalinity enhancement: tradeoffs and lags [PDF]

Environmental Research Letters
Carbon dioxide removal (CDR) is discussed for offsetting residual greenhouse gas emissions or even reversing climate change. All emissions scenarios of the Intergovernmental Panel on Climate Change that meet the ‘well below 2 °C’ warming target of the ...
Aurich Jeltsch-Thömmes, Giang Tran, Sebastian Lienert, David P Keller, Andreas Oschlies, Fortunat Joos   +5 more
doaj   +2 more sources

Ocean alkalinity enhancement in an open-ocean ecosystem: biogeochemical responses and carbon storage durability [PDF]

Biogeosciences
Ocean alkalinity enhancement (OAE) is considered for the long-term removal of gigatonnes of carbon dioxide (CO2) from the atmosphere to achieve our climate goals.
A. J. Paul, M. Haunost, S. U. Goldenberg, J. Hartmann, N. Sánchez, J. Schneider, N. Suitner, U. Riebesell   +7 more
doaj   +4 more sources

Phytoplankton response to increased nickel in the context of ocean alkalinity enhancement [PDF]

Biogeosciences, 2023
Ocean alkalinity enhancement (OAE) is considered one of the most promising approaches to actively remove carbon dioxide (CO2) from the atmosphere by accelerating the natural process of rock weathering.
X. Xin, G. Faucher, U. Riebesell
doaj   +4 more sources

Overview: Environmental impacts of ocean alkalinity enhancement [PDF]

Biogeosciences

U. Riebesell
doaj   +5 more sources

Mesocosm experiments in ocean alkalinity enhancement research

State of the Planet, 2023
Abstract. An essential prerequisite for the implementation of ocean alkalinity enhancement (OAE) applications is their environmental safety. Only if it can be ensured that ecosystem health and ecosystem services are not at risk will the implementation of OAE move forward.
Ulf Riebesell, Daniela Basso, Sonja Geilert, Andrew W. Dale, Matthias Kreuzburg, Filip Meysman   +5 more
openaire   +5 more sources

Modeling considerations for research on Ocean Alkalinity Enhancement (OAE)

State of the Planet, 2023
Abstract. The deliberate increase of ocean alkalinity (referred to as Ocean Alkalinity Enhancement or OAE) has been proposed as a method for removing CO2 from the atmosphere. Before OAE can be implemented safely, efficiently, and at scale several research questions have to be addressed including: 1) which alkaline feedstocks are best suited and in what
Katja Fennel, Matthew C. Long, Christopher Algar, Brendan Carter, David Keller, Arnaud Laurent, Jann Paul Mattern, Ruth Musgrave, Andreas Oschlies, Josiane Ostiguy, Jaime B. Palter, Daniel B. Whitt   +11 more
openaire   +2 more sources

Resilience of Phytoplankton and Microzooplankton Communities under Ocean Alkalinity Enhancement in the Oligotrophic Ocean. [PDF]

Environ Sci Technol
Ocean alkalinity enhancement (OAE) is currently discussed as a potential negative emission technology to sequester atmospheric carbon dioxide in seawater. Yet, its potential risks or cobenefits for marine ecosystems are still mostly unknown, thus hampering its evaluation for large-scale application.
Xin X, Goldenberg SU, Taucher J, Stuhr A, Arístegui J, Riebesell U.   +5 more
europepmc   +4 more sources