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The future of Arctic sea-ice biogeochemistry and ice-associated ecosystems

Lannuzel, D ORCID: 0000-0001-6154-1837, Tedesco, L, van Leeuwe, M, Campbell, K, Flores, H, Delille, B, Miller, L, Stefels, J, Assmy, P, Bowman, J, Brown, K, Castellani, G, Chierici, M, Crabeck, O, Damm, E, Else, B, Fransson, A, Fripiat, F, Geilfus, N-X, Jacques, C, Jones, E, Kaartokallio, H, Kotovitch, M, Meiners, K, Moreau, S, Nomura, D, Peeken, I, Rintala, J-M, Steiner, N, Tison, J-L, Vancoppenolle, M, Van der Linden, F, Vichi, M and Wongpan, P ORCID: 0000-0002-7113-8221 2020 , 'The future of Arctic sea-ice biogeochemistry and ice-associated ecosystems' , Nature Climate Change , pp. 1-10 , doi: 10.1038/s41558-020-00940-4.

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Abstract

The Arctic sea-ice-scape is rapidly transforming. Increasing light penetration will initiate earlier seasonal primary production. This earlier growing season may be accompanied by an increase in ice algae and phytoplankton biomass, augmenting the emission of dimethylsulfide and capture of carbon dioxide. Secondary production may also increase on the shelves, although the loss of sea ice exacerbates the demise of sea-ice fauna, endemic fish and megafauna. Sea-ice loss may also deliver more methane to the atmosphere, but warmer ice may release fewer halogens, resulting in fewer ozone depletion events. The net changes in carbon drawdown are still highly uncertain. Despite large uncertainties in these assessments, we expect disruptive changes that warrant intensified long-term observations and modelling efforts.

Item Type: Article
Authors/Creators:Lannuzel, D and Tedesco, L and van Leeuwe, M and Campbell, K and Flores, H and Delille, B and Miller, L and Stefels, J and Assmy, P and Bowman, J and Brown, K and Castellani, G and Chierici, M and Crabeck, O and Damm, E and Else, B and Fransson, A and Fripiat, F and Geilfus, N-X and Jacques, C and Jones, E and Kaartokallio, H and Kotovitch, M and Meiners, K and Moreau, S and Nomura, D and Peeken, I and Rintala, J-M and Steiner, N and Tison, J-L and Vancoppenolle, M and Van der Linden, F and Vichi, M and Wongpan, P
Keywords: Arctic, sea ice, biogeochemistry, ecosystems
Journal or Publication Title: Nature Climate Change
Publisher: Nature Publishing Group
ISSN: 1758-678X
DOI / ID Number: 10.1038/s41558-020-00940-4
Copyright Information:

Copyright 2020 Springer Nature Limited

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