期刊
FRONTIERS IN CLIMATE
卷 2, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fclim.2020.575716
关键词
ocean-based solutions; blue carbon; carbon capture and storage; ocean fertilization; ocean alkalinization; climate action
资金
- Prince Albert II of Monaco Foundation
- Veolia Foundation
- IAEA Ocean Acidification International Coordination Centre
- French Facility for Global Environment
- STORISK project (French National Research Agency) [ANR-15-CE03-0003]
- ANR programme Investissements d'avenir [ANR-10-LABX-14-01]
Ocean-based negative emissions technologies were assessed in comparison to other ocean-based measures, showing uncertainty but high potential effectiveness, and a need for prioritized research and development. None of the assessed technologies were identified as decisive, with one at a low regret stage and three at a concept stage with varying levels of potential disbenefits.
The effectiveness, feasibility, duration of effects, co-benefits, disbenefits, cost effectiveness and governability of four ocean-based negative emissions technologies (NETs) are assessed in comparison to eight other ocean-based measures. Their role in revising UNFCCC Parties' future Nationally Determined Contributions is discussed in the broad context of ocean-based actions for both mitigation and ecological adaptation. All measures are clustered in three policy-relevant categories (Decisive, Low Regret, Concept Stage). None of the ocean-based NETs assessed are identified as Decisive at this stage. One is Low Regret (Restoring and increasing coastal vegetation), and three are at Concept Stage, one with low to moderate potential disbenefits (Marine bioenergy with carbon capture and storage) and two with potentially high disbenefits (Enhancing open-ocean productivity and Enhancing weathering and alkalinization). Ocean-based NETs are uncertain but potentially highly effective. They have high priority for research and development.
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