Nonlinear impacts of future anthropogenic aerosol emissions on Arctic warming
Past reductions of anthropogenic aerosol concentrations in Europe and North America could have amplified Arctic warming. In the future the impact of air pollution policies may differ, because the major anthropogenic sources of atmospheric aerosols are increasingly located in Asia. In this study nume...
Published in: | Environmental Research Letters |
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Online Access: | https://doi.org/10.1088/1748-9326/aaf8ee https://doaj.org/article/43216f2220a84da8a4c4d1bea00c1f4a |
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ftdoajarticles:oai:doaj.org/article:43216f2220a84da8a4c4d1bea00c1f4a 2023-09-05T13:16:08+02:00 Nonlinear impacts of future anthropogenic aerosol emissions on Arctic warming S Dobricic L Pozzoli E Vignati R Van Dingenen J Wilson S Russo Z Klimont 2019-01-01T00:00:00Z https://doi.org/10.1088/1748-9326/aaf8ee https://doaj.org/article/43216f2220a84da8a4c4d1bea00c1f4a EN eng IOP Publishing https://doi.org/10.1088/1748-9326/aaf8ee https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/aaf8ee 1748-9326 https://doaj.org/article/43216f2220a84da8a4c4d1bea00c1f4a Environmental Research Letters, Vol 14, Iss 3, p 034009 (2019) Arctic warming climate change air pollution Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 article 2019 ftdoajarticles https://doi.org/10.1088/1748-9326/aaf8ee 2023-08-13T00:37:34Z Past reductions of anthropogenic aerosol concentrations in Europe and North America could have amplified Arctic warming. In the future the impact of air pollution policies may differ, because the major anthropogenic sources of atmospheric aerosols are increasingly located in Asia. In this study numerical experiments evaluating only direct aerosol effects on atmospheric temperatures indicate that, while reduced carbon dioxide (CO _2 ) emissions weaken Arctic warming, direct radiative forcing effects by reductions of anthropogenic aerosol concentrations, additional to those obtained by lower CO _2 emissions, can either amplify or diminish it. Interactions between regionally modified radiation in Asia and internal climate variability may differently initiate and sustain atmospheric planetary waves propagating into the Arctic. In a nonlinear manner planetary waves may redistribute atmospheric and oceanic meridional heat fluxes at the high latitudes and either amplify or diminish Arctic warming in 2050. Lower CO _2 concentrations might apparently contribute to reduce the interactions between the Arctic system and the lower latitudes, thus reducing the influence of strong air quality measures in Asia on the Arctic amplification of global warming. While past and present air pollution policies could have amplified Arctic warming, in the future the effects from atmospheric pollution reductions are less certain, depending on the future CO _2 concentrations, and requiring improved simulations of changing aerosol concentrations and their interactions with clouds in Asia and the Arctic. Article in Journal/Newspaper Arctic Climate change Global warming Directory of Open Access Journals: DOAJ Articles Arctic Environmental Research Letters 14 3 034009 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic warming climate change air pollution Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
spellingShingle |
Arctic warming climate change air pollution Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 S Dobricic L Pozzoli E Vignati R Van Dingenen J Wilson S Russo Z Klimont Nonlinear impacts of future anthropogenic aerosol emissions on Arctic warming |
topic_facet |
Arctic warming climate change air pollution Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
description |
Past reductions of anthropogenic aerosol concentrations in Europe and North America could have amplified Arctic warming. In the future the impact of air pollution policies may differ, because the major anthropogenic sources of atmospheric aerosols are increasingly located in Asia. In this study numerical experiments evaluating only direct aerosol effects on atmospheric temperatures indicate that, while reduced carbon dioxide (CO _2 ) emissions weaken Arctic warming, direct radiative forcing effects by reductions of anthropogenic aerosol concentrations, additional to those obtained by lower CO _2 emissions, can either amplify or diminish it. Interactions between regionally modified radiation in Asia and internal climate variability may differently initiate and sustain atmospheric planetary waves propagating into the Arctic. In a nonlinear manner planetary waves may redistribute atmospheric and oceanic meridional heat fluxes at the high latitudes and either amplify or diminish Arctic warming in 2050. Lower CO _2 concentrations might apparently contribute to reduce the interactions between the Arctic system and the lower latitudes, thus reducing the influence of strong air quality measures in Asia on the Arctic amplification of global warming. While past and present air pollution policies could have amplified Arctic warming, in the future the effects from atmospheric pollution reductions are less certain, depending on the future CO _2 concentrations, and requiring improved simulations of changing aerosol concentrations and their interactions with clouds in Asia and the Arctic. |
format |
Article in Journal/Newspaper |
author |
S Dobricic L Pozzoli E Vignati R Van Dingenen J Wilson S Russo Z Klimont |
author_facet |
S Dobricic L Pozzoli E Vignati R Van Dingenen J Wilson S Russo Z Klimont |
author_sort |
S Dobricic |
title |
Nonlinear impacts of future anthropogenic aerosol emissions on Arctic warming |
title_short |
Nonlinear impacts of future anthropogenic aerosol emissions on Arctic warming |
title_full |
Nonlinear impacts of future anthropogenic aerosol emissions on Arctic warming |
title_fullStr |
Nonlinear impacts of future anthropogenic aerosol emissions on Arctic warming |
title_full_unstemmed |
Nonlinear impacts of future anthropogenic aerosol emissions on Arctic warming |
title_sort |
nonlinear impacts of future anthropogenic aerosol emissions on arctic warming |
publisher |
IOP Publishing |
publishDate |
2019 |
url |
https://doi.org/10.1088/1748-9326/aaf8ee https://doaj.org/article/43216f2220a84da8a4c4d1bea00c1f4a |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Global warming |
genre_facet |
Arctic Climate change Global warming |
op_source |
Environmental Research Letters, Vol 14, Iss 3, p 034009 (2019) |
op_relation |
https://doi.org/10.1088/1748-9326/aaf8ee https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/aaf8ee 1748-9326 https://doaj.org/article/43216f2220a84da8a4c4d1bea00c1f4a |
op_doi |
https://doi.org/10.1088/1748-9326/aaf8ee |
container_title |
Environmental Research Letters |
container_volume |
14 |
container_issue |
3 |
container_start_page |
034009 |
_version_ |
1776197834364682240 |