Climate changes modulated the history of Arctic iodine during the Last Glacial Cycle
Iodine has a significant impact on promoting the formation of new ultrafine aerosol particles and accelerating tropospheric ozone loss, thereby affecting radiative forcing and climate. Therefore, understanding the long-term natural evolution of iodine, and its coupling with climate variability, is k...
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Online Access: | http://hdl.handle.net/10278/3757232 https://doi.org/10.1038/s41467-021-27642-5 https://www.nature.com/articles/s41467-021-27642-5 |
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ftuniveneziairis:oai:iris.unive.it:10278/3757232 2024-04-14T08:06:17+00:00 Climate changes modulated the history of Arctic iodine during the Last Glacial Cycle Corella, Juan Pablo Maffezzoli, Niccolo Spolaor, Andrea Vallelonga, Paul Cuevas, Carlos A. Scoto, Federico Müller, Juliane Vinther, Bo Kjær, Helle A. Cozzi, Giulio Edwards, Ross Barbante, Carlo Saiz-Lopez, Alfonso Corella, Juan Pablo Maffezzoli, Niccolo Spolaor, Andrea Vallelonga, Paul Cuevas, Carlos A. Scoto, Federico Müller, Juliane Vinther, Bo Kjær, Helle A. Cozzi, Giulio Edwards, Ro Barbante, Carlo Saiz-Lopez, Alfonso 2022 http://hdl.handle.net/10278/3757232 https://doi.org/10.1038/s41467-021-27642-5 https://www.nature.com/articles/s41467-021-27642-5 unknown volume:13 issue:1 journal:NATURE COMMUNICATIONS http://hdl.handle.net/10278/3757232 doi:10.1038/s41467-021-27642-5 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85122875627 https://www.nature.com/articles/s41467-021-27642-5 Settore GEO/04 - Geografia Fisica e Geomorfologia info:eu-repo/semantics/article 2022 ftuniveneziairis https://doi.org/10.1038/s41467-021-27642-5 2024-03-21T18:21:48Z Iodine has a significant impact on promoting the formation of new ultrafine aerosol particles and accelerating tropospheric ozone loss, thereby affecting radiative forcing and climate. Therefore, understanding the long-term natural evolution of iodine, and its coupling with climate variability, is key to adequately assess its effect on climate on centennial to millennial timescales. Here, using two Greenland ice cores (NEEM and RECAP), we report the Arctic iodine variability during the last 127,000 years. We find the highest and lowest iodine levels recorded during interglacial and glacial periods, respectively, modulated by ocean bioproductivity and sea ice dynamics. Our sub-decadal resolution measurements reveal that high frequency iodine emission variability occurred in pace with Dansgaard/Oeschger events, highlighting the rapid Arctic ocean-ice-atmosphere iodine exchange response to abrupt climate changes. Finally, we discuss if iodine levels during past warmer-than-present climate phases can serve as analogues of future scenarios under an expected ice-free Arctic Ocean. We argue that the combination of natural biogenic ocean iodine release (boosted by ongoing Arctic warming and sea ice retreat) and anthropogenic ozone-induced iodine emissions may lead to a near future scenario with the highest iodine levels of the last 127,000 years. Article in Journal/Newspaper Arctic Arctic Ocean Dansgaard-Oeschger events Greenland Greenland ice cores Sea ice Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca) Arctic Arctic Ocean Greenland Nature Communications 13 1 |
institution |
Open Polar |
collection |
Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca) |
op_collection_id |
ftuniveneziairis |
language |
unknown |
topic |
Settore GEO/04 - Geografia Fisica e Geomorfologia |
spellingShingle |
Settore GEO/04 - Geografia Fisica e Geomorfologia Corella, Juan Pablo Maffezzoli, Niccolo Spolaor, Andrea Vallelonga, Paul Cuevas, Carlos A. Scoto, Federico Müller, Juliane Vinther, Bo Kjær, Helle A. Cozzi, Giulio Edwards, Ross Barbante, Carlo Saiz-Lopez, Alfonso Climate changes modulated the history of Arctic iodine during the Last Glacial Cycle |
topic_facet |
Settore GEO/04 - Geografia Fisica e Geomorfologia |
description |
Iodine has a significant impact on promoting the formation of new ultrafine aerosol particles and accelerating tropospheric ozone loss, thereby affecting radiative forcing and climate. Therefore, understanding the long-term natural evolution of iodine, and its coupling with climate variability, is key to adequately assess its effect on climate on centennial to millennial timescales. Here, using two Greenland ice cores (NEEM and RECAP), we report the Arctic iodine variability during the last 127,000 years. We find the highest and lowest iodine levels recorded during interglacial and glacial periods, respectively, modulated by ocean bioproductivity and sea ice dynamics. Our sub-decadal resolution measurements reveal that high frequency iodine emission variability occurred in pace with Dansgaard/Oeschger events, highlighting the rapid Arctic ocean-ice-atmosphere iodine exchange response to abrupt climate changes. Finally, we discuss if iodine levels during past warmer-than-present climate phases can serve as analogues of future scenarios under an expected ice-free Arctic Ocean. We argue that the combination of natural biogenic ocean iodine release (boosted by ongoing Arctic warming and sea ice retreat) and anthropogenic ozone-induced iodine emissions may lead to a near future scenario with the highest iodine levels of the last 127,000 years. |
author2 |
Corella, Juan Pablo Maffezzoli, Niccolo Spolaor, Andrea Vallelonga, Paul Cuevas, Carlos A. Scoto, Federico Müller, Juliane Vinther, Bo Kjær, Helle A. Cozzi, Giulio Edwards, Ro Barbante, Carlo Saiz-Lopez, Alfonso |
format |
Article in Journal/Newspaper |
author |
Corella, Juan Pablo Maffezzoli, Niccolo Spolaor, Andrea Vallelonga, Paul Cuevas, Carlos A. Scoto, Federico Müller, Juliane Vinther, Bo Kjær, Helle A. Cozzi, Giulio Edwards, Ross Barbante, Carlo Saiz-Lopez, Alfonso |
author_facet |
Corella, Juan Pablo Maffezzoli, Niccolo Spolaor, Andrea Vallelonga, Paul Cuevas, Carlos A. Scoto, Federico Müller, Juliane Vinther, Bo Kjær, Helle A. Cozzi, Giulio Edwards, Ross Barbante, Carlo Saiz-Lopez, Alfonso |
author_sort |
Corella, Juan Pablo |
title |
Climate changes modulated the history of Arctic iodine during the Last Glacial Cycle |
title_short |
Climate changes modulated the history of Arctic iodine during the Last Glacial Cycle |
title_full |
Climate changes modulated the history of Arctic iodine during the Last Glacial Cycle |
title_fullStr |
Climate changes modulated the history of Arctic iodine during the Last Glacial Cycle |
title_full_unstemmed |
Climate changes modulated the history of Arctic iodine during the Last Glacial Cycle |
title_sort |
climate changes modulated the history of arctic iodine during the last glacial cycle |
publishDate |
2022 |
url |
http://hdl.handle.net/10278/3757232 https://doi.org/10.1038/s41467-021-27642-5 https://www.nature.com/articles/s41467-021-27642-5 |
geographic |
Arctic Arctic Ocean Greenland |
geographic_facet |
Arctic Arctic Ocean Greenland |
genre |
Arctic Arctic Ocean Dansgaard-Oeschger events Greenland Greenland ice cores Sea ice |
genre_facet |
Arctic Arctic Ocean Dansgaard-Oeschger events Greenland Greenland ice cores Sea ice |
op_relation |
volume:13 issue:1 journal:NATURE COMMUNICATIONS http://hdl.handle.net/10278/3757232 doi:10.1038/s41467-021-27642-5 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85122875627 https://www.nature.com/articles/s41467-021-27642-5 |
op_doi |
https://doi.org/10.1038/s41467-021-27642-5 |
container_title |
Nature Communications |
container_volume |
13 |
container_issue |
1 |
_version_ |
1796303050435985408 |