Large Contribution of Ozone‐Depleting Substances to Global and Arctic Warming in the Late 20th Century
Abstract While previous studies have suggested a substantial role of ozone‐depleting substances (ODSs) in historical climate change, their relative contribution to historical anthropogenic warming has not been quantified before. Analyzing all‐but‐one‐forcing, 20‐member ensembles of historical simula...
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Online Access: | https://doi.org/10.1029/2022GL100563 https://doaj.org/article/312cc3b5a992479283b7ce9459d8f219 |
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ftdoajarticles:oai:doaj.org/article:312cc3b5a992479283b7ce9459d8f219 2024-09-15T18:02:10+00:00 Large Contribution of Ozone‐Depleting Substances to Global and Arctic Warming in the Late 20th Century M. Sigmond L. M. Polvani J. C. Fyfe C. J. Smith J. N. S. Cole M. R. England 2023-03-01T00:00:00Z https://doi.org/10.1029/2022GL100563 https://doaj.org/article/312cc3b5a992479283b7ce9459d8f219 EN eng Wiley https://doi.org/10.1029/2022GL100563 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2022GL100563 https://doaj.org/article/312cc3b5a992479283b7ce9459d8f219 Geophysical Research Letters, Vol 50, Iss 5, Pp n/a-n/a (2023) climate modeling attribution ozone‐depleting substances Geophysics. Cosmic physics QC801-809 article 2023 ftdoajarticles https://doi.org/10.1029/2022GL100563 2024-08-05T17:49:23Z Abstract While previous studies have suggested a substantial role of ozone‐depleting substances (ODSs) in historical climate change, their relative contribution to historical anthropogenic warming has not been quantified before. Analyzing all‐but‐one‐forcing, 20‐member ensembles of historical simulations with a state‐of‐the‐art Earth System Model, we find that over the 1955–2005 period ODSs are responsible for 30% of global warming, 37% of Arctic warming, and 33% of summertime Arctic sea ice loss. Effective Radiative Forcing (ERF) calculations reveal that the global warming response to ODSs per unit of ERF is about 20% larger than for CO2, which may be due to stronger feedbacks and the difference in temporal evolution with ODSs having leveled off and CO2 still increasing in 2005. While the response to both peaks in the Arctic, the ODS ERF opposes Arctic amplification more than the CO2 ERF. Our findings highlight the importance of the Montreal Protocol for mitigating future climate change. Article in Journal/Newspaper Climate change Global warming Sea ice Directory of Open Access Journals: DOAJ Articles Geophysical Research Letters 50 5 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
climate modeling attribution ozone‐depleting substances Geophysics. Cosmic physics QC801-809 |
spellingShingle |
climate modeling attribution ozone‐depleting substances Geophysics. Cosmic physics QC801-809 M. Sigmond L. M. Polvani J. C. Fyfe C. J. Smith J. N. S. Cole M. R. England Large Contribution of Ozone‐Depleting Substances to Global and Arctic Warming in the Late 20th Century |
topic_facet |
climate modeling attribution ozone‐depleting substances Geophysics. Cosmic physics QC801-809 |
description |
Abstract While previous studies have suggested a substantial role of ozone‐depleting substances (ODSs) in historical climate change, their relative contribution to historical anthropogenic warming has not been quantified before. Analyzing all‐but‐one‐forcing, 20‐member ensembles of historical simulations with a state‐of‐the‐art Earth System Model, we find that over the 1955–2005 period ODSs are responsible for 30% of global warming, 37% of Arctic warming, and 33% of summertime Arctic sea ice loss. Effective Radiative Forcing (ERF) calculations reveal that the global warming response to ODSs per unit of ERF is about 20% larger than for CO2, which may be due to stronger feedbacks and the difference in temporal evolution with ODSs having leveled off and CO2 still increasing in 2005. While the response to both peaks in the Arctic, the ODS ERF opposes Arctic amplification more than the CO2 ERF. Our findings highlight the importance of the Montreal Protocol for mitigating future climate change. |
format |
Article in Journal/Newspaper |
author |
M. Sigmond L. M. Polvani J. C. Fyfe C. J. Smith J. N. S. Cole M. R. England |
author_facet |
M. Sigmond L. M. Polvani J. C. Fyfe C. J. Smith J. N. S. Cole M. R. England |
author_sort |
M. Sigmond |
title |
Large Contribution of Ozone‐Depleting Substances to Global and Arctic Warming in the Late 20th Century |
title_short |
Large Contribution of Ozone‐Depleting Substances to Global and Arctic Warming in the Late 20th Century |
title_full |
Large Contribution of Ozone‐Depleting Substances to Global and Arctic Warming in the Late 20th Century |
title_fullStr |
Large Contribution of Ozone‐Depleting Substances to Global and Arctic Warming in the Late 20th Century |
title_full_unstemmed |
Large Contribution of Ozone‐Depleting Substances to Global and Arctic Warming in the Late 20th Century |
title_sort |
large contribution of ozone‐depleting substances to global and arctic warming in the late 20th century |
publisher |
Wiley |
publishDate |
2023 |
url |
https://doi.org/10.1029/2022GL100563 https://doaj.org/article/312cc3b5a992479283b7ce9459d8f219 |
genre |
Climate change Global warming Sea ice |
genre_facet |
Climate change Global warming Sea ice |
op_source |
Geophysical Research Letters, Vol 50, Iss 5, Pp n/a-n/a (2023) |
op_relation |
https://doi.org/10.1029/2022GL100563 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2022GL100563 https://doaj.org/article/312cc3b5a992479283b7ce9459d8f219 |
op_doi |
https://doi.org/10.1029/2022GL100563 |
container_title |
Geophysical Research Letters |
container_volume |
50 |
container_issue |
5 |
_version_ |
1810439494803914752 |