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  Carbon dioxide removal technologies are not born equal

Strefler, J., Bauer, N., Humpenöder, F., Klein, D., Popp, A., Kriegler, E. (2021): Carbon dioxide removal technologies are not born equal. - Environmental Research Letters, 16, 7, 074021.
https://doi.org/10.1088/1748-9326/ac0a11

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Strefler, Jessica1, Autor              
Bauer, Nicolas1, Autor              
Humpenöder, Florian1, Autor              
Klein, David1, Autor              
Popp, Alexander1, Autor              
Kriegler, Elmar1, Autor              
Affiliations:
1Potsdam Institute for Climate Impact Research, Potsdam, ou_persistent13              

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 Zusammenfassung: Technologies for carbon dioxide removal (CDR) from the atmosphere have been recognized as an important part of limiting warming to well below 2 °C called for in the Paris Agreement. However, many scenarios so far rely on bioenergy in combination with carbon capture and storage as the only CDR technology. Various other options have been proposed, but have scarcely been taken up in an integrated assessment of mitigation pathways. In this study we analyze a comprehensive portfolio of CDR options in terms of their regional and temporal deployment patterns in climate change mitigation pathways and the resulting challenges. We show that any CDR option with sufficient potential can reduce the economic costs of achieving the 1.5 °C target substantially without increasing the temperature overshoot. CDR helps to reduce net CO2 emissions faster and achieve carbon neutrality earlier. The regional distribution of CDR deployment in cost-effective mitigation pathways depends on which options are available. If only enhanced weathering of rocks on croplands or re- and afforestation are available, Latin America and Asia cover nearly all of global CDR deployment. Besides fairness and sustainability concerns, such a regional concentration would require large international transfers and thus strong international institutions. In our study, the full portfolio scenario is the most balanced from a regional perspective. This indicates that different CDR options should be developed such that all regions can contribute according to their regional potentials.

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 Datum: 2021-06-102021-06-102021-07-01
 Publikationsstatus: Final veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1088/1748-9326/ac0a11
PIKDOMAIN: RD3 - Transformation Pathways
Organisational keyword: RD3 - Transformation Pathways
Research topic keyword: 1.5/2°C limit
Research topic keyword: CO2 Removal
Regional keyword: Global
Model / method: REMIND
Model / method: MAgPIE
MDB-ID: yes - 3210
OATYPE: Gold Open Access
 Art des Abschluß: -

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Titel: Environmental Research Letters
Genre der Quelle: Zeitschrift, SCI, Scopus, p3, oa
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 16 (7) Artikelnummer: 074021 Start- / Endseite: - Identifikator: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/150326
Publisher: IOP Publishing