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Irreversibility of Marine Climate Change Impacts Under Carbon Dioxide Removal

Geophysical Research Letters, 2020
Abstract Artificial carbon dioxide removal (CDR) from the atmosphere has been proposed as a measure for mitigating climate change and restoring the climate system to a target state after exceedance (“overshoot”). This research investigates to what extent overshoot and subsequent recovery of a given cumulative CO
Xinru Li, Karen E. Kohfeld, Kirsten Zickfeld   +2 more
exaly   +2 more sources

The Verification Challenge of Marine Carbon Dioxide Removal

Annual Review of Marine Science
It is increasingly obvious that, even when reaching net-zero emissions, removal of anthropogenic CO 2 from the atmosphere will be required. Some ocean-based removal technologies, while not proven for routine operation at scale, show promise. All of these rely on inducing a flux of CO
Katja Fennel
exaly   +3 more sources

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Thermodynamics of Marine Carbon Dioxide Removal

ECS Meeting Abstracts
In recent years, marine carbon removal technologies have gained attention as a means of reducing greenhouse gas concentrations. One family of these technologies are electrochemical systems, which employ Faradaic reactions to drive alkalinity-swings and enable dissolved inorganic carbon (DIC) removal as gaseous CO
Fabian J Dickhardt, Michael Philip Nitzsche, Simon Rufer, T. Alan Hatton, Kripa Varanasi   +4 more
openaire   +1 more source

Is Marine Carbon Dioxide Removal Right for Aotearoa New Zealand?

New Zealand Journal of Marine and Freshwater Research
ABSTRACT Marine carbon sinks are identified as potential nature‐based solutions in the second Emissions Reduction Plan released in December 2024. Although the scientific basis for marine carbon dioxide removal (mCDR) is still being established, activities are nonetheless advancing internationally and there is increasing domestic ...
Cliff Law
exaly   +2 more sources

(Invited) Electrochemical Marine Carbon Dioxide Removal (mCDR)

ECS Meeting Abstracts
Ebb Carbon is developing an electrochemical system to safely remove carbon dioxide from the atmosphere and store it in the ocean as dissolved inorganic carbon. The core process uses bipolar electrodialysis (BPED) to process incoming seawater into aqueous acid and alkaline seawater.
openaire   +1 more source

Advancing Monitoring Reporting and Verification for marine Carbon Dioxide Removal

Carbon dioxide removal (CDR) is becoming increasingly relevant as a complement to rapid and sustained greenhouse gas emission reductions in overshoot pathways and pathways that limit warming to 1.5–2°C. Marine CDR (mCDR) could contribute by enhancing ocean uptake and storage of carbon, but only if Monitoring, Reporting, and Verification (MRV) can ...
Helene Muri, Olivier Sulpis, Gabriela Arguello, Chelsey Baker, Miranda Boettcher, Maribel I. García-Ibáñez, Karol Kuliński, Angela Landolfi, Peter Landschützer, Evin McGovern, Živana Ninčević Gladan, Andreas Oschlies, Elias Yfantis, Ángel Muniz Piniella   +13 more
openaire   +1 more source

Governance of marine carbon dioxide removal - gaps, challenges and pathways

Deliberate ocean-based interventions for the removal and storage of additional carbon dioxide from the atmosphere increasingly find consideration in science and policy. Such marine carbon dioxide removal (mCDR) approaches may counterbalance residual emissions and thereby support the achievement of global climate goals set by the Paris Agreement.
Lina Roeschel, Barbara Neumann
openaire   +1 more source

Hydrogen Gas Production for Marine Carbon Dioxide Removal

Negative emissions technologies have been developed to remove previously emitted carbon dioxide (CO2) from the atmosphere. Electrochemical ocean alkalinity enhancement has emerged as a promising approach because it can simultaneously reduce atmospheric CO2 concentrations and mitigate ocean acidification; however, its scalability is currently ...
openaire   +2 more sources

Mechanistic evaluation of benthic carbon sequestration as a marine carbon dioxide removal strategy

Biotic ocean-based carbon dioxide removal (CDR) methods rely on various mechanisms to sink organic carbon to ocean depths, ultimately relying on seafloor burial to trap carbon. However, its long-term efficacy and environmental impacts remain uncertain, and systematic evaluation of underlying controls is warranted before large-scale deployment.
Subhadeep Rakshit, Jessica Y. Luo, Charles A Stock   +2 more
openaire   +1 more source

Navigating the sea of uncertainty around Marine Carbon Dioxide Removal (MCDR)

Open Access Government
Navigating the sea of uncertainty around Marine Carbon Dioxide Removal (MCDR) Prof. Christopher Pearce and Dr Willem van Dorp discuss the need for science-based governance approaches when evaluating the potential benefits, impacts and effectiveness of emerging marine carbon dioxide removal techniques.
Christopher Pearce, Willem F. van Dorp
openaire   +1 more source