Stronger Arctic amplification from ozone-depleting substances than from carbon dioxide

Abstract Arctic amplification (AA)—the greater warming of the Arctic near-surface temperature relative to its global mean value—is a prominent feature of the climate response to increasing greenhouse gases. Recent work has revealed the importance of ozone-depleting substances (ODS) in contributing t...

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Published in:Environmental Research Letters
Main Authors: Liang, Yu-Chiao, Polvani, Lorenzo M, Previdi, Michael, Smith, Karen L, England, Mark R, Chiodo, Gabriel
Other Authors: NSF, MOST, Swiss Ambizione
Format: Article in Journal/Newspaper
Language:unknown
Published: IOP Publishing 2022
Subjects:
Online Access:https://doi.org/10.1088/1748-9326/ac4a31
https://iopscience.iop.org/article/10.1088/1748-9326/ac4a31
https://iopscience.iop.org/article/10.1088/1748-9326/ac4a31/pdf
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author Liang, Yu-Chiao
Polvani, Lorenzo M
Previdi, Michael
Smith, Karen L
England, Mark R
Chiodo, Gabriel
author2 NSF
MOST
Swiss Ambizione
author_facet Liang, Yu-Chiao
Polvani, Lorenzo M
Previdi, Michael
Smith, Karen L
England, Mark R
Chiodo, Gabriel
author_sort Liang, Yu-Chiao
collection IOP Publishing
container_issue 2
container_start_page 024010
container_title Environmental Research Letters
container_volume 17
description Abstract Arctic amplification (AA)—the greater warming of the Arctic near-surface temperature relative to its global mean value—is a prominent feature of the climate response to increasing greenhouse gases. Recent work has revealed the importance of ozone-depleting substances (ODS) in contributing to Arctic warming and sea-ice loss. Here, using ensembles of climate model integrations, we expand on that work and directly contrast Arctic warming from ODS to that from carbon dioxide (CO 2 ), over the 1955–2005 period when ODS loading peaked. We find that the Arctic warming and sea-ice loss from ODS are slightly more than half (52%–59%) those from CO 2 . We further show that the strength of AA for ODS is 1.44 times larger than that for CO 2 , and that this mainly stems from more positive Planck, albedo, lapse-rate, and cloud feedbacks. Our results suggest that AA would be considerably stronger than presently observed had the Montreal Protocol not been signed.
format Article in Journal/Newspaper
genre albedo
Arctic
Sea ice
genre_facet albedo
Arctic
Sea ice
geographic Arctic
geographic_facet Arctic
id crioppubl:10.1088/1748-9326/ac4a31
institution Open Polar
language unknown
op_collection_id crioppubl
op_doi https://doi.org/10.1088/1748-9326/ac4a31
op_rights http://creativecommons.org/licenses/by/4.0
https://iopscience.iop.org/info/page/text-and-data-mining
op_source Environmental Research Letters
volume 17, issue 2, page 024010
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spelling crioppubl:10.1088/1748-9326/ac4a31 2025-03-23T15:22:41+00:00 Stronger Arctic amplification from ozone-depleting substances than from carbon dioxide Liang, Yu-Chiao Polvani, Lorenzo M Previdi, Michael Smith, Karen L England, Mark R Chiodo, Gabriel NSF MOST Swiss Ambizione 2022 https://doi.org/10.1088/1748-9326/ac4a31 https://iopscience.iop.org/article/10.1088/1748-9326/ac4a31 https://iopscience.iop.org/article/10.1088/1748-9326/ac4a31/pdf unknown IOP Publishing http://creativecommons.org/licenses/by/4.0 https://iopscience.iop.org/info/page/text-and-data-mining Environmental Research Letters volume 17, issue 2, page 024010 ISSN 1748-9326 journal-article 2022 crioppubl https://doi.org/10.1088/1748-9326/ac4a31 2025-02-26T09:48:24Z Abstract Arctic amplification (AA)—the greater warming of the Arctic near-surface temperature relative to its global mean value—is a prominent feature of the climate response to increasing greenhouse gases. Recent work has revealed the importance of ozone-depleting substances (ODS) in contributing to Arctic warming and sea-ice loss. Here, using ensembles of climate model integrations, we expand on that work and directly contrast Arctic warming from ODS to that from carbon dioxide (CO 2 ), over the 1955–2005 period when ODS loading peaked. We find that the Arctic warming and sea-ice loss from ODS are slightly more than half (52%–59%) those from CO 2 . We further show that the strength of AA for ODS is 1.44 times larger than that for CO 2 , and that this mainly stems from more positive Planck, albedo, lapse-rate, and cloud feedbacks. Our results suggest that AA would be considerably stronger than presently observed had the Montreal Protocol not been signed. Article in Journal/Newspaper albedo Arctic Sea ice IOP Publishing Arctic Environmental Research Letters 17 2 024010
spellingShingle Liang, Yu-Chiao
Polvani, Lorenzo M
Previdi, Michael
Smith, Karen L
England, Mark R
Chiodo, Gabriel
Stronger Arctic amplification from ozone-depleting substances than from carbon dioxide
title Stronger Arctic amplification from ozone-depleting substances than from carbon dioxide
title_full Stronger Arctic amplification from ozone-depleting substances than from carbon dioxide
title_fullStr Stronger Arctic amplification from ozone-depleting substances than from carbon dioxide
title_full_unstemmed Stronger Arctic amplification from ozone-depleting substances than from carbon dioxide
title_short Stronger Arctic amplification from ozone-depleting substances than from carbon dioxide
title_sort stronger arctic amplification from ozone-depleting substances than from carbon dioxide
url https://doi.org/10.1088/1748-9326/ac4a31
https://iopscience.iop.org/article/10.1088/1748-9326/ac4a31
https://iopscience.iop.org/article/10.1088/1748-9326/ac4a31/pdf