Is the Atlantic Overturning Circulation approaching a tipping point? ...
<!--!introduction!--> Possible changes in Atlantic meridional overturning circulation (AMOC) provide a key source of uncertainty regarding future climate change. Maps of temperature trends over the twentieth century show a conspicuous region of cooling in the northern Atlantic, as well as exce...
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GFZ German Research Centre for Geosciences
2023
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ftdatacite:10.57757/iugg23-0691 2023-06-11T04:12:16+02:00 Is the Atlantic Overturning Circulation approaching a tipping point? ... Rahmstorf, Stefan 2023 https://dx.doi.org/10.57757/iugg23-0691 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016797 unknown GFZ German Research Centre for Geosciences Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 ConferencePaper Oral Article 2023 ftdatacite https://doi.org/10.57757/iugg23-0691 2023-06-01T11:08:54Z <!--!introduction!--> Possible changes in Atlantic meridional overturning circulation (AMOC) provide a key source of uncertainty regarding future climate change. Maps of temperature trends over the twentieth century show a conspicuous region of cooling in the northern Atlantic, as well as excessive warming along the North American coast. Both combined are a ‘fingerprint’ characteristic of an AMOC slowdown by about 15%. Proxy data studies suggest this slowing of the AMOC is unique in the past millennium or more. Continued melting of the Greenland Ice Sheet in the coming decades could contribute to further weakening of the AMOC, with important consequences for the ocean ecosystem, the weather in the wider North Atlantic region, regional sea levels and the ocean’s ability to absorb carbon dioxide. Moreover, the AMOC has a known tipping point. The question of how close we already are to this tipping point is becoming increasingly urgent. Rahmstorf, S., et al. (2015). "Exceptional twentieth-century slowdown ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... Conference Object Greenland Ice Sheet North Atlantic DataCite Metadata Store (German National Library of Science and Technology) Greenland |
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<!--!introduction!--> Possible changes in Atlantic meridional overturning circulation (AMOC) provide a key source of uncertainty regarding future climate change. Maps of temperature trends over the twentieth century show a conspicuous region of cooling in the northern Atlantic, as well as excessive warming along the North American coast. Both combined are a ‘fingerprint’ characteristic of an AMOC slowdown by about 15%. Proxy data studies suggest this slowing of the AMOC is unique in the past millennium or more. Continued melting of the Greenland Ice Sheet in the coming decades could contribute to further weakening of the AMOC, with important consequences for the ocean ecosystem, the weather in the wider North Atlantic region, regional sea levels and the ocean’s ability to absorb carbon dioxide. Moreover, the AMOC has a known tipping point. The question of how close we already are to this tipping point is becoming increasingly urgent. Rahmstorf, S., et al. (2015). "Exceptional twentieth-century slowdown ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
format |
Conference Object |
author |
Rahmstorf, Stefan |
spellingShingle |
Rahmstorf, Stefan Is the Atlantic Overturning Circulation approaching a tipping point? ... |
author_facet |
Rahmstorf, Stefan |
author_sort |
Rahmstorf, Stefan |
title |
Is the Atlantic Overturning Circulation approaching a tipping point? ... |
title_short |
Is the Atlantic Overturning Circulation approaching a tipping point? ... |
title_full |
Is the Atlantic Overturning Circulation approaching a tipping point? ... |
title_fullStr |
Is the Atlantic Overturning Circulation approaching a tipping point? ... |
title_full_unstemmed |
Is the Atlantic Overturning Circulation approaching a tipping point? ... |
title_sort |
is the atlantic overturning circulation approaching a tipping point? ... |
publisher |
GFZ German Research Centre for Geosciences |
publishDate |
2023 |
url |
https://dx.doi.org/10.57757/iugg23-0691 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016797 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet North Atlantic |
genre_facet |
Greenland Ice Sheet North Atlantic |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.57757/iugg23-0691 |
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1768388004610572288 |