The interaction of solar radiation modification with Earth system tipping elements

<p>The avoidance of hitting tipping points has been invoked as a significant benefit of solar radiation modification (SRM) techniques; however, the physical science underpinning this has thus far not been comprehensively assessed. This review assesses the available evidence for the interaction...

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Main Authors: G. Futerman, M. Adhikari, A. Duffey, Y. Fan, J. Gurevitch, P. Irvine, C. Wieners
Format: Article
Language:English
Published: Copernicus Publications 2025-07-01
Series:Earth System Dynamics
Online Access:https://esd.copernicus.org/articles/16/939/2025/esd-16-939-2025.pdf
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author G. Futerman
M. Adhikari
A. Duffey
Y. Fan
J. Gurevitch
P. Irvine
C. Wieners
author_facet G. Futerman
M. Adhikari
A. Duffey
Y. Fan
J. Gurevitch
P. Irvine
C. Wieners
author_sort G. Futerman
collection DOAJ
description <p>The avoidance of hitting tipping points has been invoked as a significant benefit of solar radiation modification (SRM) techniques; however, the physical science underpinning this has thus far not been comprehensively assessed. This review assesses the available evidence for the interaction of SRM with a number of Earth system tipping elements in the cryosphere, the oceans, the atmosphere and the biosphere, with a particular focus on the impact of stratospheric aerosol injection. We review the scant available literature directly addressing the interaction of SRM with the tipping elements or closely related proxies to these elements. However, given how limited this evidence is, we also give a first-order indication of the impact of SRM on the tipping elements by assessing the impact of SRM on their drivers. We then briefly assess whether SRM could halt or reverse tipping once feedbacks have been initiated. Finally, we suggest pathways for further research. We find that, when temperature is a key driver of tipping, well-implemented, homogenous, peak-shaving SRM could be at least partially effective at reducing the risk of hitting most tipping points examined relative to the same emission pathway scenarios without SRM. Nonetheless, very large uncertainties remain, particularly when drivers less strongly coupled to temperature are important, and considerably more research is needed before many of these large uncertainties can be resolved.</p>
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publishDate 2025-07-01
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spelling doaj-art-37568cd16ebc4f1388fc873991d457492025-08-20T03:28:52ZengCopernicus PublicationsEarth System Dynamics2190-49792190-49872025-07-011693997810.5194/esd-16-939-2025The interaction of solar radiation modification with Earth system tipping elementsG. Futerman0M. Adhikari1A. Duffey2Y. Fan3J. Gurevitch4P. Irvine5C. Wieners6Department of Earth Sciences, University of Oxford, Oxford, OX1 3AN, United KingdomDepartment of Geography, Kings College London, London, WC2B 4BG, United KingdomDepartment of Earth Sciences, University College London, WC1E 6BT, United KingdomInstitute of Environment and Ecology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518000, ChinaDepartment of Forestry and Natural Resources, Purdue University, West Lafayette, IN 47907, United States of AmericaDepartment of Earth Sciences, University College London, WC1E 6BT, United KingdomInstitute for Marine and Atmospheric Research, Utrecht University, 3584 CC, Utrecht, the Netherlands<p>The avoidance of hitting tipping points has been invoked as a significant benefit of solar radiation modification (SRM) techniques; however, the physical science underpinning this has thus far not been comprehensively assessed. This review assesses the available evidence for the interaction of SRM with a number of Earth system tipping elements in the cryosphere, the oceans, the atmosphere and the biosphere, with a particular focus on the impact of stratospheric aerosol injection. We review the scant available literature directly addressing the interaction of SRM with the tipping elements or closely related proxies to these elements. However, given how limited this evidence is, we also give a first-order indication of the impact of SRM on the tipping elements by assessing the impact of SRM on their drivers. We then briefly assess whether SRM could halt or reverse tipping once feedbacks have been initiated. Finally, we suggest pathways for further research. We find that, when temperature is a key driver of tipping, well-implemented, homogenous, peak-shaving SRM could be at least partially effective at reducing the risk of hitting most tipping points examined relative to the same emission pathway scenarios without SRM. Nonetheless, very large uncertainties remain, particularly when drivers less strongly coupled to temperature are important, and considerably more research is needed before many of these large uncertainties can be resolved.</p>https://esd.copernicus.org/articles/16/939/2025/esd-16-939-2025.pdf
spellingShingle G. Futerman
M. Adhikari
A. Duffey
Y. Fan
J. Gurevitch
P. Irvine
C. Wieners
The interaction of solar radiation modification with Earth system tipping elements
Earth System Dynamics
title The interaction of solar radiation modification with Earth system tipping elements
title_full The interaction of solar radiation modification with Earth system tipping elements
title_fullStr The interaction of solar radiation modification with Earth system tipping elements
title_full_unstemmed The interaction of solar radiation modification with Earth system tipping elements
title_short The interaction of solar radiation modification with Earth system tipping elements
title_sort interaction of solar radiation modification with earth system tipping elements
url https://esd.copernicus.org/articles/16/939/2025/esd-16-939-2025.pdf
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