The quiet crossing of ocean tipping points.

biogeochemistry climate change ocean regime shifts tipping points

Journal

Proceedings of the National Academy of Sciences of the United States of America
ISSN: 1091-6490
Titre abrégé: Proc Natl Acad Sci U S A
Pays: United States
ID NLM: 7505876

Informations de publication

Date de publication:
02 03 2021
Historique:
entrez: 23 2 2021
pubmed: 24 2 2021
medline: 10 8 2021
Statut: ppublish

Résumé

Anthropogenic climate change profoundly alters the ocean's environmental conditions, which, in turn, impact marine ecosystems. Some of these changes are happening fast and may be difficult to reverse. The identification and monitoring of such changes, which also includes tipping points, is an ongoing and emerging research effort. Prevention of negative impacts requires mitigation efforts based on feasible research-based pathways. Climate-induced tipping points are traditionally associated with singular catastrophic events (relative to natural variations) of dramatic negative impact. High-probability high-impact ocean tipping points due to warming, ocean acidification, and deoxygenation may be more fragmented both regionally and in time but add up to global dimensions. These tipping points in combination with gradual changes need to be addressed as seriously as singular catastrophic events in order to prevent the cumulative and often compounding negative societal and Earth system impacts.

Identifiants

pubmed: 33619085
pii: 2008478118
doi: 10.1073/pnas.2008478118
pmc: PMC7936299
pii:
doi:

Types de publication

Journal Article Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Informations de copyright

Copyright © 2021 the Author(s). Published by PNAS.

Déclaration de conflit d'intérêts

The authors declare no competing interest.

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Auteurs

Christoph Heinze (C)

Geophysical Institute, University of Bergen, 5020 Bergen, Norway; christoph.heinze@uib.no.
Bjerknes Centre for Climate Research, University of Bergen, 5020 Bergen, Norway.

Thorsten Blenckner (T)

Stockholm Resilience Centre, Stockholm University, 10691 Stockholm, Sweden.

Helena Martins (H)

Rossby Centre, Swedish Meteorological and Hydrological Institute, 60176 Norrköping, Sweden.

Dagmara Rusiecka (D)

Geophysical Institute, University of Bergen, 5020 Bergen, Norway.
Bjerknes Centre for Climate Research, University of Bergen, 5020 Bergen, Norway.

Ralf Döscher (R)

Rossby Centre, Swedish Meteorological and Hydrological Institute, 60176 Norrköping, Sweden.

Marion Gehlen (M)

Laboratoire des Sciences du Climat et de l'Environnement, Institut Pierre Simon Laplace, 91191 Gif-sur-Yvette cedex, France.

Nicolas Gruber (N)

Institute of Biogeochemistry and Pollutant Dynamics, Eidgenössische Technische Hochschule (ETH) Zürich, 8092 Zürich, Switzerland.

Elisabeth Holland (E)

Pacific Centre for the Environment and Sustainable Development, The University of the South Pacific, Suva, Fiji.

Øystein Hov (Ø)

Norwegian Meteorological Institute, 0371 Oslo, Norway.
The Norwegian Academy of Science and Letters, 0271 Oslo, Norway.

Fortunat Joos (F)

Climate and Environmental Physics, Physics Institute, University of Bern, 3012 Bern, Switzerland.
Oeschger Centre for Climate Change Research, University of Bern, 3012 Bern, Switzerland.

John Brian Robin Matthews (JBR)

School of Architecture, Computing and Engineering, University of East London, E16 2RD, London, United Kingdom.

Rolf Rødven (R)

Arctic Monitoring and Assessment Programme Secretariat, 9296 Tromsø, Norway.

Simon Wilson (S)

Arctic Monitoring and Assessment Programme Secretariat, 9296 Tromsø, Norway.

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