Understanding the carbon dioxide removal range in 1.5 °C compatible and high overshoot pathways
File(s)
Published version
Author(s)
Pruetz, Ruben
Strefler, Jessica
Rogelj, Joeri
Fuss, Sabine
Type
Journal Article
Abstract
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.
Date Issued
2023-04-01
Date Acceptance
2023-04-17
Citation
Environmental Research Communications, 2023, 5 (4)
ISSN
2515-7620
Publisher
IOP Publishing
Journal / Book Title
Environmental Research Communications
Volume
5
Issue
4
Copyright Statement
© 2023 The Author(s). Published by IOP Publishing Ltd. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
License URL
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000976925700001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
carbon dioxide removal
climate change mitigation
Environmental Sciences
Environmental Sciences & Ecology
Life Sciences & Biomedicine
negative emissions
net-zero
overshoot
scenarios
Science & Technology
Publication Status
Published
Article Number
ARTN 041005
Date Publish Online
2023-04-26