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  Optimal temperature overshoot profile found by limiting global sea level rise as a lower-cost climate target

Li, C., Held, H., Hokamp, S., & Marotzke, J. (2020). Optimal temperature overshoot profile found by limiting global sea level rise as a lower-cost climate target. Science Advances, 6: eaaw9490. doi:10.1126/sciadv.aaw9490.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-75CE-0 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-75CF-F
Genre: Journal Article

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 Creators:
Li, Chao1, Author              
Held, Hermann2, 3, Author              
Hokamp, Sascha3, Author              
Marotzke, Jochem1, Author              
Affiliations:
1Director’s Research Group OES, The Ocean in the Earth System, MPI for Meteorology, Max Planck Society, ou_913553              
2C 2 - Climate Change, Predictions, and Economy, Research Area C: Climate Change and Social Dynamics, The CliSAP Cluster of Excellence, External Organizations, ou_1863488              
3C 1 - Societal Use of Climate Information, Research Area C: Climate Change and Social Dynamics, The CliSAP Cluster of Excellence, External Organizations, ou_1863487              

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 Abstract: The global temperature targets of limiting surface warming to below 2.0°C or even to 1.5°C have been widely accepted through the Paris Agreement. However, limiting surface warming has previously been proven insufficient to control sea level rise (SLR). Here, we explore a sea level target that is closer to coastal planning and associated adaptation measures than a temperature target. We find that a sea level target provides an optimal temperature overshoot profile through a physical constraint of SLR. The allowable temperature overshoot leads to lower mitigation costs and more effective long-term sea level stabilization compared to a temperature target leading to the same SLR by 2200. With the same mitigation cost as the temperature target, a SLR target could bring surface warming back to the targeted temperatures within this century, lead to a reduction of surface warming of the next century, and reduce and slow down SLR in the centuries thereafter.

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Language(s): eng - English
 Dates: 2020-01-082020
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1126/sciadv.aaw9490
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Title: Science Advances
  Other : Sci. Adv.
Source Genre: Journal
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Publ. Info: Washington : AAAS
Pages: - Volume / Issue: 6 Sequence Number: eaaw9490 Start / End Page: - Identifier: ISSN: 2375-2548
CoNE: https://pure.mpg.de/cone/journals/resource/2375-2548