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Perspectives and challenges of marine carbon dioxide removal

Frontiers in Climate
The Paris Agreement to limit global warming to well below 2°C requires drastic reductions in greenhouse gas emissions and the balancing of any remaining emissions by carbon dioxide removal (CDR). Due to uncertainties about the potential and durability of
Andreas Oschlies, Lennart T. Bach, Katja Fennel, Jean-Pierre Gattuso, Jean-Pierre Gattuso, Nadine Mengis   +5 more
doaj   +8 more sources

Three challenges to marine carbon dioxide removal [PDF]

npj Ocean Sustainability
Reaching the Paris Agreement target to limit global warming below 1.5 °C requires both decarbonization and the removal of carbon dioxide from the atmosphere.
Victor Brun, Marine Lecerf, Olivia Le Gouvello, Isabella Reis Costa, Chris Bowler, Robert Blasiak, Laurent Bopp, Ken Buesseler, Helen S. Findlay, Jean-Pierre Gattuso, David T. Ho, Lisa A. Levin, Lauren S. Mullineaux, Fabrice Pernet, Hans-O. Pörtner, Yunne-Jai Shin, Robert C. Steenkamp, Torsten Thiele, Joachim Claudet   +18 more
doaj   +2 more sources

Navigating Potential Hype and Opportunity in Governing Marine Carbon Removal

Frontiers in Climate, 2021
As the technical and political challenges of land-based carbon dioxide removal (CDR) approaches become more apparent, the oceans may be the new “blue” frontier for carbon drawdown strategies in climate governance.
Miranda Boettcher, Miranda Boettcher, Kerryn Brent, Holly Jean Buck, Sean Low, Sean Low, Sean Low, Duncan McLaren, Nadine Mengis   +8 more
doaj   +3 more sources

Hugging the Shore: Tackling Marine Carbon Dioxide Removal as a Local Governance Problem

Frontiers in Climate, 2021
This Perspective explores the local governance of ocean-based carbon dioxide removal (CDR). Proposals to enhance the ability of oceans and marine ecosystems to absorb atmospheric CO2 are often discussed as examples of “geoengineering,” but this framing ...
Javier Lezaun
doaj   +3 more sources

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 Kohfeld, Kirsten Zickfeld   +2 more
exaly   +2 more sources

Potential impacts of marine carbon dioxide removal on ocean oxygen [PDF]

Environmental Research Letters
Global warming is a main cause for current ocean deoxygenation. A deployment of marine carbon dioxide removal (CDR) for mitigating global warming could therefore also be viewed as a measure for mitigating ocean deoxygenation if, and only if, the ...
Andreas Oschlies, Caroline P Slomp, Andrew H Altieri, Natalya D Gallo, Marilaure Gregoire, Kirsten Isensee, Lisa A Levin, Jiajun Wu   +7 more
doaj   +8 more sources

A holistic assessment framework for marine carbon dioxide removal options

Environmental Research Letters
Marine carbon dioxide removal (mCDR) options could potentially play an important role in future CDR policy portfolios. They include, for example, ocean alkalinity enhancement, blue carbon projects such as mangrove cultivation, as well as sub-seabed ...
Christian Baatz, Lukas Tank, Lena-Katharina Bednarz, Miranda Böttcher, Teresa Maria Morganti, Lieske Voget-Kleschin, Tony Cabus, Erik van Doorn, Tabea Dorndorf, Felix Havermann, Wanda Holzhüter, David Keller, Matthias Kreuzburg, Nele Matz-Lück, Nadine Mengis, Christine Merk, Yiannis Moustakis, Julia Pongratz, Hendrikje Wehnert, Wanxuan Yao, Gregor Rehder   +20 more
doaj   +5 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

Seawater carbonate chemistry based carbon dioxide removal: towards commonly agreed principles for carbon monitoring, reporting, and verification

Frontiers in Climate
Carbon Dioxide Removal (CDR) from the atmosphere is unavoidable if we are to meet the Paris Agreement’s goal of limiting global warming to 1.5°C, and almost certainly required to limit warming to 2°C.
Paul R. Halloran, Thomas G. Bell, William J. Burt, Sophie N. Chu, Sophie Gill, Cameron Henderson, David T. Ho, David T. Ho, Vassilis Kitidis, Erika La Plante, Erika La Plante, Monica Larrazabal, Socratis Loucaides, Christopher R. Pearce, Theresa Redding, Phil Renforth, Fran Taylor, Katherine Toome, Riccardo Torres, Andrew Watson   +19 more
doaj   +3 more sources

Marine carbon dioxide removal by alkalinization should no longer be overlooked

Environmental Research Letters
To achieve the Paris climate target, deep emissions reductions have to be complemented with carbon dioxide removal (CDR). However, a portfolio of CDR options is necessary to reduce risks and potential negative side effects.
Katarzyna A Kowalczyk, Thorben Amann, Jessica Strefler, Maria-Elena Vorrath, Jens Hartmann, Serena De Marco, Phil Renforth, Spyros Foteinis, Elmar Kriegler   +8 more
doaj   +4 more sources