The urgency of Arctic change
This article provides a synthesis of the latest observational trends and projections for the future of the Arctic. First, the Arctic is already changing rapidly as a result of climate change. Contemporary warm Arctic temperatures and large sea ice deficits (75% volume loss) demonstrate climate state...
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ftnipr:oai:nipr.repo.nii.ac.jp:00015911 2023-05-15T14:30:58+02:00 The urgency of Arctic change 2019-09 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=15911 http://id.nii.ac.jp/1291/00015805/ en eng https://doi.org/10.1016/j.polar.2018.11.008 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=15911 http://id.nii.ac.jp/1291/00015805/ Polar Science, 21, 6-13(2019-09) 18739652 Arctic Global change Sea ice Climate projections 2 °C limit Cryosphere Journal Article 2019 ftnipr https://doi.org/10.1016/j.polar.2018.11.008 2022-12-03T19:43:10Z This article provides a synthesis of the latest observational trends and projections for the future of the Arctic. First, the Arctic is already changing rapidly as a result of climate change. Contemporary warm Arctic temperatures and large sea ice deficits (75% volume loss) demonstrate climate states outside of previous experience. Modeled changes of the Arctic cryosphere demonstrate that even limiting global temperature increases to near 2 °C will leave the Arctic a much different environment by mid-century with less snow and sea ice, melted permafrost, altered ecosystems, and a projected annual mean Arctic temperature increase of +4 °C. Second, even under ambitious emission reduction scenarios, high-latitude land ice melt, including Greenland, are foreseen to continue due to internal lags, leading to accelerating global sea level rise throughout the century. Third, future Arctic changes may in turn impact lower latitudes through tundra greenhouse gas release and shifts in ocean and atmospheric circulation. Arctic-specific radiative and heat storage feedbacks may become an obstacle to achieving a stabilized global climate. In light of these trends, the precautionary principle calls for early adaptation and mitigation actions. Article in Journal/Newspaper arctic cryosphere Arctic Climate change Greenland Ice permafrost Polar Science Polar Science Sea ice Tundra National Institute of Polar Research Repository, Japan Arctic Greenland Polar Science 21 6 13 |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
topic |
Arctic Global change Sea ice Climate projections 2 °C limit Cryosphere |
spellingShingle |
Arctic Global change Sea ice Climate projections 2 °C limit Cryosphere The urgency of Arctic change |
topic_facet |
Arctic Global change Sea ice Climate projections 2 °C limit Cryosphere |
description |
This article provides a synthesis of the latest observational trends and projections for the future of the Arctic. First, the Arctic is already changing rapidly as a result of climate change. Contemporary warm Arctic temperatures and large sea ice deficits (75% volume loss) demonstrate climate states outside of previous experience. Modeled changes of the Arctic cryosphere demonstrate that even limiting global temperature increases to near 2 °C will leave the Arctic a much different environment by mid-century with less snow and sea ice, melted permafrost, altered ecosystems, and a projected annual mean Arctic temperature increase of +4 °C. Second, even under ambitious emission reduction scenarios, high-latitude land ice melt, including Greenland, are foreseen to continue due to internal lags, leading to accelerating global sea level rise throughout the century. Third, future Arctic changes may in turn impact lower latitudes through tundra greenhouse gas release and shifts in ocean and atmospheric circulation. Arctic-specific radiative and heat storage feedbacks may become an obstacle to achieving a stabilized global climate. In light of these trends, the precautionary principle calls for early adaptation and mitigation actions. |
format |
Article in Journal/Newspaper |
title |
The urgency of Arctic change |
title_short |
The urgency of Arctic change |
title_full |
The urgency of Arctic change |
title_fullStr |
The urgency of Arctic change |
title_full_unstemmed |
The urgency of Arctic change |
title_sort |
urgency of arctic change |
publishDate |
2019 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=15911 http://id.nii.ac.jp/1291/00015805/ |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
arctic cryosphere Arctic Climate change Greenland Ice permafrost Polar Science Polar Science Sea ice Tundra |
genre_facet |
arctic cryosphere Arctic Climate change Greenland Ice permafrost Polar Science Polar Science Sea ice Tundra |
op_relation |
https://doi.org/10.1016/j.polar.2018.11.008 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=15911 http://id.nii.ac.jp/1291/00015805/ Polar Science, 21, 6-13(2019-09) 18739652 |
op_doi |
https://doi.org/10.1016/j.polar.2018.11.008 |
container_title |
Polar Science |
container_volume |
21 |
container_start_page |
6 |
op_container_end_page |
13 |
_version_ |
1766304720134078464 |