Results 31 to 40 of about 1,202 (255)

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

General considerations for experimental research on ocean alkalinity enhancement

State of the Planet, 2023
Abstract. Ocean alkalinity enhancement (OAE) is proposed as an approach to capture carbon by adding alkaline substances to seawater to enhance the ocean's natural carbon sink. These substances include minerals, such as olivine, or artificial substances, such as lime or some industrial byproducts.
Dupont, Sam, Metian, Marc
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

Alkalinity biases in CMIP6 Earth system models and implications for simulated CO₂ drawdown via artificial alkalinity enhancement [PDF]

Biogeosciences, 2023
The partitioning of CO2 between atmosphere and ocean depends to a large degree not only on the amount of dissolved inorganic carbon (DIC) but also on alkalinity in the surface ocean. That is also why ocean alkalinity enhancement (OAE) is discussed as one
C. Hinrichs, C. Hinrichs, P. Köhler, C. Völker, J. Hauck   +4 more
doaj   +1 more source

Microbial ecosystem responses to alkalinity enhancement in the North Atlantic Subtropical Gyre

Frontiers in Climate, 2022
In addition to reducing carbon dioxide (CO2) emissions, actively removing CO2 from the atmosphere is widely considered necessary to keep global warming well below 2°C.
Adam V. Subhas, Lukas Marx, Sarah Reynolds, Anita Flohr, Edward W. Mawji, Peter J. Brown, B. B. Cael   +6 more
doaj   +1 more source

Laboratory experiments in ocean alkalinity enhancement research

State of the Planet, 2023
Abstract. Recent concern about the consequences of continuing increases in atmospheric CO2 as a key heat-trapping agent (USGCRP, 2017; IPCC, 2021) have prompted ocean experts to come together to discuss how to provide science-based solutions. Ocean alkalinity enhancement (OAE) is being considered not only as a ocean carbon dioxide removal (CDR ...
Maria D. Iglesias-Rodríguez, Rosalind E. M. Rickaby, Arvind Singh, James A. Gately   +3 more
openaire   +2 more sources

Removing Carbon Dioxide Through Ocean Alkalinity Enhancement and Seaweed Cultivation: Legal Challenges and Opportunities

, 2021
This paper explores two ocean-based carbon dioxide removal strategies – ocean alkalinity enhancement and seaweed cultivation. Ocean alkalinity enhancement involves adding alkalinity to ocean waters, either by discharging alkaline rocks or through an ...
Silverman-Roati, Korey G., Silverman-Roati, Korey, Gerrard, Michael B., Webb, Romany M., Gerrard, Michael   +4 more
core   +2 more sources

Field experiments in ocean alkalinity enhancement research

State of the Planet, 2023
Abstract. This chapter focuses on considerations for conducting open-system field experiments in the context of ocean alkalinity enhancement (OAE) research. By conducting experiments in real-world marine and coastal systems, researchers can gain valuable insights into ecological dynamics; biogeochemical cycles; and the safety, efficacy, and scalability
Tyler Cyronak, Rebecca Albright, Lennart Bach   +2 more
openaire   +2 more sources

Assessing the influence of ocean alkalinity enhancement on a coastal phytoplankton community [PDF]

Biogeosciences, 2022
Ocean alkalinity enhancement (OAE) is a proposed method to counteract climate change by increasing the alkalinity of the surface ocean and thus the chemical storage capacity of seawater for atmospheric CO2.
A. Ferderer, Z. Chase, F. Kennedy, K. G. Schulz, L. T. Bach   +4 more
doaj   +1 more source