The future of Arctic sea-ice biogeochemistry and ice-associated ecosystems
journal contribution
posted on 2023-05-20, 18:58authored byDelphine LannuzelDelphine Lannuzel, 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, Pat WongpanPat Wongpan
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.
History
Publication title
Nature Climate Change
Volume
10
Pagination
983-992
ISSN
1758-678X
Department/School
Institute for Marine and Antarctic Studies
Publisher
Nature Publishing Group
Place of publication
United Kingdom
Rights statement
Copyright 2020 Springer Nature Limited
Repository Status
Restricted
Socio-economic Objectives
Ecosystem adaptation to climate change; Expanding knowledge in the environmental sciences