Perspectives and challenges of marine carbon dioxide removal
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 many land-based approaches to deliver suffici...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2025-01-01
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| Series: | Frontiers in Climate |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fclim.2024.1506181/full |
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| author | Andreas Oschlies Lennart T. Bach Katja Fennel Jean-Pierre Gattuso Jean-Pierre Gattuso Nadine Mengis |
| author_facet | Andreas Oschlies Lennart T. Bach Katja Fennel Jean-Pierre Gattuso Jean-Pierre Gattuso Nadine Mengis |
| author_sort | Andreas Oschlies |
| collection | DOAJ |
| description | 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 many land-based approaches to deliver sufficient CDR, marine CDR options are receiving more and more interest. We present the current state of knowledge regarding the potentials, risks, side effects as well as challenges associated with technical feasibility, governance, monitoring, reporting and accounting of marine CDR, covering a range of biotic and geochemical approaches. We specifically discuss to what extent a comparison with direct injection of CO2 into seawater, which had been proposed decades ago and is now prohibited by international agreements, may provide guidance for evaluating some of the biotic marine CDR approaches. |
| format | Article |
| id | doaj-art-8f6f2c01bf214f239514697bbbcd9820 |
| institution | Kabale University |
| issn | 2624-9553 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Climate |
| spelling | doaj-art-8f6f2c01bf214f239514697bbbcd98202025-01-07T06:48:03ZengFrontiers Media S.A.Frontiers in Climate2624-95532025-01-01610.3389/fclim.2024.15061811506181Perspectives and challenges of marine carbon dioxide removalAndreas Oschlies0Lennart T. Bach1Katja Fennel2Jean-Pierre Gattuso3Jean-Pierre Gattuso4Nadine Mengis5GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, GermanyInstitute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, AustraliaDepartment of Oceanography, Dalhousie University, Halifax, NSW, CanadaLaboratoire d’Océanographie de Villefranche, CNRS, Sorbonne Université, Villefranche-sur-Mer, FranceInstitute for Sustainable Development and International Relations, Paris, FranceGEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, GermanyThe 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 many land-based approaches to deliver sufficient CDR, marine CDR options are receiving more and more interest. We present the current state of knowledge regarding the potentials, risks, side effects as well as challenges associated with technical feasibility, governance, monitoring, reporting and accounting of marine CDR, covering a range of biotic and geochemical approaches. We specifically discuss to what extent a comparison with direct injection of CO2 into seawater, which had been proposed decades ago and is now prohibited by international agreements, may provide guidance for evaluating some of the biotic marine CDR approaches.https://www.frontiersin.org/articles/10.3389/fclim.2024.1506181/fullcarbon dioxide removalmarine geoengineeringocean carbon uptakeblue carbonocean fertilizationocean alkalinity enhancement |
| spellingShingle | Andreas Oschlies Lennart T. Bach Katja Fennel Jean-Pierre Gattuso Jean-Pierre Gattuso Nadine Mengis Perspectives and challenges of marine carbon dioxide removal Frontiers in Climate carbon dioxide removal marine geoengineering ocean carbon uptake blue carbon ocean fertilization ocean alkalinity enhancement |
| title | Perspectives and challenges of marine carbon dioxide removal |
| title_full | Perspectives and challenges of marine carbon dioxide removal |
| title_fullStr | Perspectives and challenges of marine carbon dioxide removal |
| title_full_unstemmed | Perspectives and challenges of marine carbon dioxide removal |
| title_short | Perspectives and challenges of marine carbon dioxide removal |
| title_sort | perspectives and challenges of marine carbon dioxide removal |
| topic | carbon dioxide removal marine geoengineering ocean carbon uptake blue carbon ocean fertilization ocean alkalinity enhancement |
| url | https://www.frontiersin.org/articles/10.3389/fclim.2024.1506181/full |
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