Understanding the carbon dioxide removal range in 1.5 °C compatible and high overshoot pathways

18767 9 101481 2 310264 document 101481 Prütz_2023_Environ._Res._Commun._5_041005.pdf application/pdf 5ac82d9266746f816cb671ca1bab2873 MD5 1331762 2023-05-04 07:48:28 https://pure.iiasa.ac.at/id/eprint/18767/1/Pr%C3%BCtz_2023_Environ._Res._Commun._5_041005.pdf 18767 1 1 application/pdf text en public cc_by_4

Prütz_2023_Environ._Res._Commun._5_041005.pdf

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/101481 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/101481 http://eprints.org/relation/issmallThumbnailVersionOf https://pure.iiasa.ac.at/id/document/101481 archive 2 disk0/00/01/87/67 2023-05-04 07:50:11 2025-07-03 08:21:15 2023-05-04 07:50:11 article show Prütz R. Strefler J. Rogelj J. 8630 0000-0003-2056-9061 Fuss S. Understanding the carbon dioxide removal range in 1.5 °C compatible and high overshoot pathways pub ECE IACC TISS CDR; net-zero overshoot; pathways; climate scenarios; 2050; IPCC Carbon dioxide removal (CDR) features prominently in the 1.5 °C compatible and high overshoot pathways in the IPCC's Sixth Assessment Report (AR6, WGIII). However, the amount of CDR varies considerably among scenarios. We analyze the range in CDR volumes in AR6 WGIII pathways by exploring relationships between variables as potential driving forces, focusing on CDR in 2050 and scenario properties linked to reaching net-zero CO2. It is also shown how the relative and absolute contribution of CDR to total mitigation up until reaching net-zero CO2 substantially differs across scenarios. The volumes of CDR in 2050 and 2100 and the cumulative amount throughout the 21st century were most strongly correlated to the degree to which CO2 emissions are reduced as a means of reaching net-zero CO2. CDR in 2050 is also substantially correlated to the timing of net-zero CO2. The robustness of the analyzed relationships was evaluated by comparing different scenario filtering and data-cleaning approaches. Beyond filtering and cleaning, additional factors that influence CDR deployment in scenarios, such as discount rates, carbon price trajectories, and scenario design choices, were discussed. 2023 doi:10.1088/2515-7620/accdba 254 public Environmental Research Communications 5 4 e041005 TRUE 2515-7620 https://doi.org/10.5281/zenodo.5886911 data Paris Agreement Overshooting – Reversibility, Climate Impacts and Adaptation Needs (PROVIDE, H2020 101003687) yes info:eu-repo/grantAgreement/EC/H2020/101003687/EU//PROVIDE info:eu-repo/semantics/article info:eu-repo/semantics/openAccess