Reviews and syntheses: Abrupt ocean biogeochemical change under human-made climatic forcing – warming, acidification, and deoxygenation
Year: 2023
Type: preprint
Abstract: . Abrupt changes in ocean biogeochemical variables occur as a result of human-induced climate forcing as well as those which are more gradual and occur over longer timescales. These abrupt changes have not yet been identified and quantified to the same extent as the more gradual ones. We review and synthesise abrupt changes in ocean biogeochemistry under human-induced climatic forcing. We specifically address the ocean carbon and oxygen cycles because the related processes of acidification and deoxygenation provide important ecosystem hazards. Since biogeochemical cycles depend also on the physical environment, we also describe the relevant changes in warming, circulation, and sea ice. We include an overview of the reversibility or irreversibility of abrupt marine biogeochemical changes. Important implications of abrupt biogeochemical changes for ecosystems are also discussed. We conclude that there is evidence for increasing occurrence and extent of abrupt changes in ocean biogeochemistry as a consequence of rising greenhouse gas emissions.
Source: BGD
DOI: 10.5194/bg-2023-182
Authors: Christoph Heinze, Thorsten Blenckner, Peter Brown, Friederike Fröb, Anne Morée, Adrian L. New, Cara Nissen, Stefanie Rynders, Isabel Seguro, Yevgeny Aksenov, Yuri Artioli, Timothée Bourgeois, Friedrich Burger, Jonathan Buzan, B. B. Cael, Veli Çağlar Yumruktepe, Melissa Chierici, Christopher Danek, Ulf Dieckmann, Agneta Fransson, Thomas Frölicher, Giovanni Galli, Marion Gehlen, Aridane G. González, Melchor Gonzalez-Davila, Nicolas Gruber, Örjan Gustafsson, Judith Hauck, Mikko Heino, Stephanie Henson, Jenny Hieronymus, I. Emma Huertas, Fatma Jebri, Aurich Jeltsch-Thömmes, Fortunat Joos, Jaideep Joshi, Stephen Kelly, Nandini Menon, Precious Mongwe, Laurent Oziel, Sólveig Ólafsdottir, Julien Palmieri, Fiz F. Pérez, Rajamohanan Pillai Ranith, Juliano Ramanantsoa, Tilla Roy, Dagmara Rusiecka, J. Magdalena Santana Casiano, Yeray Santana-Falcón, Jörg Schwinger, Roland Séférian, Miriam Seifert, Anna Shchiptsova, Bablu Sinha, Christopher Somes, Reiner Steinfeldt, Dandan Tao, Jerry Tjiputra, Adam Ulfsbo, Christoph Völker, Tsuyoshi Wakamatsu, Ying Ye
Institutions: Bjerknes Centre for Climate Research, University of Bergen, Stockholm Resilience Centre, Stockholm University, National Oceanography Centre, University of Bern, Oeschger Centre for Climate Change Research, Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Institute of Arctic and Alpine Research, University of Colorado Boulder, University of East Anglia, Plymouth Marine Laboratory, NORCE Research AS, Nansen Environmental and Remote Sensing Center, Norwegian Institute of Marine Research, The FRAM Centre, International Institute for Applied Systems Analysis, Okinawa Institute of Science and Technology Graduate University, The Graduate University for Advanced Studies, SOKENDAI, Norwegian Polar Institute, Institut Pierre-Simon Laplace, Laboratoire des Sciences du Climat et de l'Environnement, Universidad de Las Palmas de Gran Canaria, ETH Zurich, Swedish Meteorological and Hydrological Institute, Consejo Superior de Investigaciones Científicas, Instituto de Ciencias Marinas de Andalucía, Nansen Environmental Research Centre India, Council for Scientific and Industrial Research, Marine and Freshwater Research Institute, Instituto de Investigacións Mariñas, École Normale Supérieure - PSL, Météo-France, GEOMAR Helmholtz Centre for Ocean Research Kiel, University of Bremen, University of Gothenburg
Language: English
Subfield: Oceanography
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: hybrid
Awards: G1175115578, G210041235, G2262748287, G2601397997, G279363373, Identifying tipping points and safe operating spaces in sustainable fisheries management under future climate change, G300979063, Our common future ocean in the Earth system – quantifying coupled cycles of carbon, oxygen, and nutrients for determining and achieving safe operating spaces with respect to tipping points, G34346518, G3480869486, G3681454997, G4042783231, G425668148, G434337789, G5080475149, G5195188938, Accounting for evolutionary and socioeconomic impacts in modern fisheries sci ence and management, G7084143925, G8382499373, G8684520763
OpenAlex ID: W4387499339