Nature Reviews Earth & Environment最新文献

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Changing the heatwave visual discourse in the news media 改变新闻媒体的热浪视觉话语
Nature Reviews Earth & Environment Pub Date : 2026-01-06 DOI: 10.1038/s43017-025-00754-y
Saffron O’Neill, Clare Davis
{"title":"Changing the heatwave visual discourse in the news media","authors":"Saffron O’Neill, Clare Davis","doi":"10.1038/s43017-025-00754-y","DOIUrl":"10.1038/s43017-025-00754-y","url":null,"abstract":"Nature Reviews Earth & Environment interviewed Professor Saffron O’Neill about their project investigating the visual communication of heatwaves in the news media.","PeriodicalId":18921,"journal":{"name":"Nature Reviews Earth & Environment","volume":"7 1","pages":"4-4"},"PeriodicalIF":0.0,"publicationDate":"2026-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145958193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
ENSO impacts on marine ecosystems and fisheries in the tropical and South Atlantic ENSO对热带和南大西洋海洋生态系统和渔业的影响
Nature Reviews Earth & Environment Pub Date : 2025-12-18 DOI: 10.1038/s43017-025-00742-2
Belén Rodríguez-Fonseca, Elena Calvo-Miguélez, Lucia Montoya-Carramolino, Regina R. Rodrigues, Irene Polo, Marta Martín-Rey, Teresa Losada, Jorge López-Parages, Iñigo Gómara, David Rivas, Filippa Fransner, Eleftheria Exarchou, Noel Keenlyside, Arnaud Bertrand, Lynne Shannon, Louise Gammage, Francisco Ramírez, Camila Artana, Jose Carlos Sánchez-Garrido, Emilia Sánchez-Gómez, Marie Pierre Moine, Raffaele Bernardello, Jeroen Steenbeek, Marta Coll, Verónica Martín-Gómez, Joke Lübbecke, Moacyr Araujo, Peter Brandt, Jörn O. Schmidt, Hans Sloterdijk, Ronaldo Angelini, Rodrigue Anicet Imbol Koungue, Khady Diouf, Shunya Koseki, Elaine McDonagh, Elsa Mohino, Jose Muelbert, Siny Ndoye, Hyacinth Nnamchi, Juliano Ramanantsoa, Mathieu Rouault, Ralf Schwamborn, Heino Fock, Marek Ostrowski, Amadou Thierno Gaye, Carlos R. Mechoso, Michael J. McPhaden, Wenju Cai
{"title":"ENSO impacts on marine ecosystems and fisheries in the tropical and South Atlantic","authors":"Belén Rodríguez-Fonseca, Elena Calvo-Miguélez, Lucia Montoya-Carramolino, Regina R. Rodrigues, Irene Polo, Marta Martín-Rey, Teresa Losada, Jorge López-Parages, Iñigo Gómara, David Rivas, Filippa Fransner, Eleftheria Exarchou, Noel Keenlyside, Arnaud Bertrand, Lynne Shannon, Louise Gammage, Francisco Ramírez, Camila Artana, Jose Carlos Sánchez-Garrido, Emilia Sánchez-Gómez, Marie Pierre Moine, Raffaele Bernardello, Jeroen Steenbeek, Marta Coll, Verónica Martín-Gómez, Joke Lübbecke, Moacyr Araujo, Peter Brandt, Jörn O. Schmidt, Hans Sloterdijk, Ronaldo Angelini, Rodrigue Anicet Imbol Koungue, Khady Diouf, Shunya Koseki, Elaine McDonagh, Elsa Mohino, Jose Muelbert, Siny Ndoye, Hyacinth Nnamchi, Juliano Ramanantsoa, Mathieu Rouault, Ralf Schwamborn, Heino Fock, Marek Ostrowski, Amadou Thierno Gaye, Carlos R. Mechoso, Michael J. McPhaden, Wenju Cai","doi":"10.1038/s43017-025-00742-2","DOIUrl":"10.1038/s43017-025-00742-2","url":null,"abstract":"Tropical and South Atlantic marine ecosystems support fisheries that have vital environmental and socioeconomic importance. In this Review, we outline how the El Niño–Southern Oscillation — a Pacific mode of sea surface temperature variability — influences Atlantic fisheries via teleconnections and cascading linkages between physical, biogeochemical and ecological systems. Connections are driven by tropical pathways (involving changes in atmospheric stability associated with the Walker circulation and tropospheric warming) and extratropical pathways (involving the Pacific–South American and Pacific–North American teleconnection patterns). Depending on the location, these pathways modify rainfall and river discharge, winds and upwelling, or a combination of both, impacting salinity, nutrient availability, primary production and, thus, fish recruitment, biomass and catch. Fishery responses are strongly species dependent, reflecting variations in behaviour between species to environmental factors (such as temperature, oxygen, salinity, habitat and food availability). This regional variability and species dependency, coupled with strong non-stationarity, highlights the complexity of El Niño–Southern Oscillation impacts on Atlantic marine ecosystems. This historical signal is projected to weaken in the future. Enhanced observational systems and refined ecosystem models are urgently needed to enhance predictive capabilities, reduce societal impacts and improve sustainable management in these regions. The influence of the El Niño–Southern Oscillation on Atlantic marine systems and fisheries is complex. This Review outlines the mechanisms by which El Niño–Southern Oscillation impacts the tropical and South Atlantic, connecting physical climate perturbations to biogeochemical and ecological responses.","PeriodicalId":18921,"journal":{"name":"Nature Reviews Earth & Environment","volume":"7 1","pages":"43-59"},"PeriodicalIF":0.0,"publicationDate":"2025-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145958188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Beyond the Global Plastics Treaty 超越全球塑料条约
Nature Reviews Earth & Environment Pub Date : 2025-12-17 DOI: 10.1038/s43017-025-00752-0
Samuel Winton, Antaya March
{"title":"Beyond the Global Plastics Treaty","authors":"Samuel Winton, Antaya March","doi":"10.1038/s43017-025-00752-0","DOIUrl":"10.1038/s43017-025-00752-0","url":null,"abstract":"Although the latest round of Global Plastics Treaty negotiations ended without agreement, the process has mobilized research, funding, and public engagement. Rather than waiting for an agreement, governments and communities should sustain momentum and build readiness for a future treaty through coordinated national planning, ambitious policies, and local initiatives.","PeriodicalId":18921,"journal":{"name":"Nature Reviews Earth & Environment","volume":"7 2","pages":"81-82"},"PeriodicalIF":0.0,"publicationDate":"2025-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146162910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Past and future change in global river flows 全球河流流量的过去和未来变化
Nature Reviews Earth & Environment Pub Date : 2025-12-16 DOI: 10.1038/s43017-025-00745-z
Lukas Gudmundsson, Manuela I. Brunner, Petra Döll, Etienne Fluet-Chouinard, Natalia Frolova, Simon N. Gosling, Yukiko Hirabayashi, Maria B. Kireeva, Xiaomang Liu, Hannes Müller Schmied, Dmitriy Magritskiy, Louise J. Slater, Lina Stein, Yves Tramblay, Kaiwen Wang, Conrad Wasko, Dai Yamazaki, Xudong Zhou
{"title":"Past and future change in global river flows","authors":"Lukas Gudmundsson, Manuela I. Brunner, Petra Döll, Etienne Fluet-Chouinard, Natalia Frolova, Simon N. Gosling, Yukiko Hirabayashi, Maria B. Kireeva, Xiaomang Liu, Hannes Müller Schmied, Dmitriy Magritskiy, Louise J. Slater, Lina Stein, Yves Tramblay, Kaiwen Wang, Conrad Wasko, Dai Yamazaki, Xudong Zhou","doi":"10.1038/s43017-025-00745-z","DOIUrl":"10.1038/s43017-025-00745-z","url":null,"abstract":"Rivers are a vital component of the global water cycle. However, human influence on climate and terrestrial systems is increasingly shaping river flow regimes. In this Review, we summarize the current understanding of past and projected changes in global river flow, focusing on annual volumes, seasonal dynamics and sudden changes. River flow observations reveal distinct regional trends, including increased flows in high-latitude regions and decreased flows in parts of the mid-latitudes and subtropics. Snow-dominated regions in particular show shifts in their seasonal cycle towards earlier flows. These patterns align broadly with historical climate model simulations, suggesting an anthropogenic climate change signal. However, attribution is complicated by the interplay of greenhouse gas emissions, CO2-driven vegetation response, land-use change and water management. Future projections indicate continued change, with certain regions experiencing wetter conditions and others intensified drying. Seasonal changes, particularly those due to altered snow dynamics, are also expected to intensify. Despite modelling and observational advances, uncertainties remain regarding the combined effects of anthropogenic climate change and direct human interventions in terrestrial systems. Closing these gaps requires improved monitoring, advances in modelling and robust attribution frameworks, in support of efficiently managing water resources, sustaining ecosystems and adapting to a changing climate. Human influence on the climate and terrestrial systems is increasingly altering global river flow. This Review discusses past and projected changes in global river flow, with an emphasis on annual volumes, seasonal dynamics and sudden changes in flow dynamics.","PeriodicalId":18921,"journal":{"name":"Nature Reviews Earth & Environment","volume":"7 1","pages":"7-23"},"PeriodicalIF":0.0,"publicationDate":"2025-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145958190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advancing an adaptable and practical framework to address water quality challenges in a changing world 在不断变化的世界中,推进一个适应性强、实用的框架,以应对水质挑战
Nature Reviews Earth & Environment Pub Date : 2025-12-15 DOI: 10.1038/s43017-025-00753-z
Qian Zhang, Robert M. Hirsch, Laura A. DeCicco, Jennifer C. Murphy
{"title":"Advancing an adaptable and practical framework to address water quality challenges in a changing world","authors":"Qian Zhang, Robert M. Hirsch, Laura A. DeCicco, Jennifer C. Murphy","doi":"10.1038/s43017-025-00753-z","DOIUrl":"10.1038/s43017-025-00753-z","url":null,"abstract":"As water-quality challenges intensify, the widely used Weighted Regressions on Time, Discharge, and Season (WRTDS) method offers an adaptable and practical framework for global water-quality science and management.","PeriodicalId":18921,"journal":{"name":"Nature Reviews Earth & Environment","volume":"7 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2025-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145958191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Glacier biogeochemical cycling and downstream impacts 冰川生物地球化学循环及其下游影响
Nature Reviews Earth & Environment Pub Date : 2025-12-11 DOI: 10.1038/s43017-025-00751-1
Jon. R. Hawkings, James A. Bradley, Eva L. Doting, Noor Hassan, Katharine R. Hendry, Amy D. Holt, Eran Hood, Robert G. M. Spencer, Marek Stibal, Martyn Tranter, Ryan A. Venturelli, Jemma L. Wadham, Maya P. Bhatia
{"title":"Glacier biogeochemical cycling and downstream impacts","authors":"Jon. R. Hawkings, James A. Bradley, Eva L. Doting, Noor Hassan, Katharine R. Hendry, Amy D. Holt, Eran Hood, Robert G. M. Spencer, Marek Stibal, Martyn Tranter, Ryan A. Venturelli, Jemma L. Wadham, Maya P. Bhatia","doi":"10.1038/s43017-025-00751-1","DOIUrl":"10.1038/s43017-025-00751-1","url":null,"abstract":"Far from being frozen and sterile environments, glaciers are biogeochemical reactors and regulators. In this Review, we discuss the hydrology and biogeochemistry of glacierized environments and their impact on downstream ecosystems. Supraglacial meltwaters export labile organic carbon associated with active supraglacial microbial communities, as well as carbon and nutrients delivered via atmospheric deposition. Meltwaters funnelled to the glacier bed and exiting at the glacier snout transport large quantities of rock flour as well as supraglacial and subglacial-derived organic carbon and nutrients to downstream ecosystems. Subglacial water flow paths influence rock–water contact times and vary greatly, affecting weathering reactions. For instance, the hydrology of mountain glaciers and the Greenland Ice Sheet is typically dominated by seasonal melt with short (hours) to medium (weeks) water residence times, although extended biogeochemical isolation can exist in more isolated parts of the Greenland Ice Sheet. Conversely, the Antarctic Ice Sheet is dominated by basal ice melt and residence times that can exceed years and decades. As a result, the latter supports extended biogeochemical isolation and more advanced chemical weathering. Microbial processes and physical-chemical weathering can both sequester or emit greenhouse gases, but the net effect remains unknown. Meltwaters can potentially fuel biological processes in downstream ecosystems by priming glacier-fed streams, fjords, and oceans with rock flour and nutrients. The rapid reduction in glacier area projected for the next century mandates that future research provides a critical assessment of the effects of deglaciation on watershed biogeochemistry, ecology and global biogeochemical cycles. Far from frozen and sterile environments, glaciers are biogeochemical reactors and regulators. This Review outlines key biogeochemical and associated physical processes occurring in glacierized environments and the known impacts of glaciers on elemental cycling and the Earth system.","PeriodicalId":18921,"journal":{"name":"Nature Reviews Earth & Environment","volume":"7 2","pages":"124-143"},"PeriodicalIF":0.0,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146162905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Antarctic Bottom Water in a changing climate 气候变化中的南极底水
Nature Reviews Earth & Environment Pub Date : 2025-12-09 DOI: 10.1038/s43017-025-00750-2
Stephen R. Rintoul, Andrew L. Stewart, Gregory C. Johnson, Shenjie Zhou, Annie Foppert, Qian Li, Adele K. Morrison, Alessandro Silvano, Kathryn L. Gunn, Matthew H. England, Sohey Nihashi, Shigeru Aoki
{"title":"Antarctic Bottom Water in a changing climate","authors":"Stephen R. Rintoul, Andrew L. Stewart, Gregory C. Johnson, Shenjie Zhou, Annie Foppert, Qian Li, Adele K. Morrison, Alessandro Silvano, Kathryn L. Gunn, Matthew H. England, Sohey Nihashi, Shigeru Aoki","doi":"10.1038/s43017-025-00750-2","DOIUrl":"10.1038/s43017-025-00750-2","url":null,"abstract":"Antarctic Bottom Water (AABW) is derived from dense water that sinks from the Antarctic continental shelf to the deep ocean. The sinking of AABW is balanced by a return flow of lighter water, and the resulting overturning circulation determines the density stratification of the deep ocean, regulates ocean storage of heat and carbon, and supplies oxygen to the deep sea. In this Review, we highlight progress in understanding how and why AABW is changing and the consequences for the deep overturning circulation. Since the mid-1980s, ocean heat content below 4,000 dbar has increased at a rate of 12.9 (±1.8) trillion watts, and the AABW has thinned by more than 50 dbar decade−1, with more rapid thinning observed closer to the sources of AABW. The abyssal overturning circulation has slowed in response to freshening of shelf waters by glacial melt and changes in sea ice formation. Numerical model simulations indicate that these trends will accelerate under projected increases in meltwater input. Future research priorities include sustained observations in the deep ocean and on the Antarctic continental shelf; exploration of feedbacks between ocean circulation, sea ice, dense water formation and ice shelf melt; and improved representation of AABW in ocean and climate models. Antarctic Bottom Water (AABW) sinks near Antarctica and fills the deep ocean. This Review discusses how AABW is formed, past changes to its properties and transport, and projects future changes in AABW and the deep overturning circulation.","PeriodicalId":18921,"journal":{"name":"Nature Reviews Earth & Environment","volume":"7 2","pages":"86-102"},"PeriodicalIF":0.0,"publicationDate":"2025-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146162908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Climate impacts of the El Niño–Southern Oscillation on Australia 厄尔尼诺Niño-Southern涛动对澳大利亚的气候影响
Nature Reviews Earth & Environment Pub Date : 2025-12-04 DOI: 10.1038/s43017-025-00747-x
Andréa S. Taschetto, Shayne McGregor, Dietmar Dommenget, Zoe E. Gillett, Neville Nicholls, Sur Sharmila, Peter van Rensch, Danielle Verdon-Kidd, Ghyslaine Boschat, Christine Chung, Ruby Lieber, Nerilie Abram, Rob Allan, Kathryn Allen, Linden Ashcroft, Josephine R. Brown, Wenju Cai, Savin Chand, Tim Cowan, Thi Lan Dao, Catherine de Burgh-Day, Mandy B. Freund, Ailie Gallant, Joelle Gergis, Neil J. Holbrook, Hanna Heidemann, Chiara Holgate, Pandora Hope, Andrew King, Eun-Pa Lim, John L. McBride, Roseanna C. McKay, Hanh Nguyen, Acacia Pepler, Sarah Perkins-Kirkpatrick, Scott Power, James S. Risbey, Agus Santoso, Caroline C. Ummenhofer, Guojian Wang, Xuebin Zhang
{"title":"Climate impacts of the El Niño–Southern Oscillation on Australia","authors":"Andréa S. Taschetto, Shayne McGregor, Dietmar Dommenget, Zoe E. Gillett, Neville Nicholls, Sur Sharmila, Peter van Rensch, Danielle Verdon-Kidd, Ghyslaine Boschat, Christine Chung, Ruby Lieber, Nerilie Abram, Rob Allan, Kathryn Allen, Linden Ashcroft, Josephine R. Brown, Wenju Cai, Savin Chand, Tim Cowan, Thi Lan Dao, Catherine de Burgh-Day, Mandy B. Freund, Ailie Gallant, Joelle Gergis, Neil J. Holbrook, Hanna Heidemann, Chiara Holgate, Pandora Hope, Andrew King, Eun-Pa Lim, John L. McBride, Roseanna C. McKay, Hanh Nguyen, Acacia Pepler, Sarah Perkins-Kirkpatrick, Scott Power, James S. Risbey, Agus Santoso, Caroline C. Ummenhofer, Guojian Wang, Xuebin Zhang","doi":"10.1038/s43017-025-00747-x","DOIUrl":"10.1038/s43017-025-00747-x","url":null,"abstract":"El Niño–Southern Oscillation (ENSO) profoundly affects Australian weather, climate, ecosystems and socio-economic sectors. In this Review, we summarize the advances in understanding the ENSO–Australian climate relationship, detailing the complexity beyond the traditional assumptions of El Niño-dry and La Niña-wet patterns, including mechanisms and impacts. The influence of ENSO is most coherent during austral spring, explaining about a quarter of rainfall variability over large parts of eastern Australia. La Niña typically exerts more robust rainfall changes than El Niño, and the Central Pacific El Niño has greater impacts than Eastern Pacific events. These effects are amplified by prolonged ENSO episodes and modulated by land–atmosphere feedback, surrounding sea surface temperatures, local processes and interactions with other climate modes, including multidecadal variability. El Niño-related drying generally worsens when co-occurring with positive Indian Ocean Dipole (IOD) and/or negative Southern Annular Mode (SAM), whereas La Niña rainfall intensifies with negative IOD and/or positive SAM. Although ENSO predictability has improved with advanced understanding of ocean processes and dynamical forecasting, predicting its impacts is challenging because of large internal atmospheric variability. Ongoing changes in ENSO underscore the need for strategic research, continuous in situ monitoring, reduced model biases and deeper understanding of the anthropogenically induced changes in Pacific temperatures to guide adaptation strategies. El Niño–Southern Oscillation (ENSO) profoundly affects Australian weather, climate, ecosystems and socio-economic sectors. This Review presents the progress made in understanding ENSO teleconnections to Australian weather over the past 40 years, describing the atmospheric dynamics, complexities and impacts of this climate phenomenon.","PeriodicalId":18921,"journal":{"name":"Nature Reviews Earth & Environment","volume":"7 2","pages":"103-123"},"PeriodicalIF":0.0,"publicationDate":"2025-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146162909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Southern Annular Mode dynamics, projections and impacts in a changing climate 气候变化中的南环模动力学、预估和影响
Nature Reviews Earth & Environment Pub Date : 2025-12-02 DOI: 10.1038/s43017-025-00746-y
Ariaan Purich, Julie M. Arblaster, Ghyslaine Boschat, Zoe E. Gillett, Will Hobbs, Martin Jucker, Eun-Pa Lim, Danielle Udy, Nerilie Abram, Elio Campitelli, Edward Doddridge, Matthew H. England, Andrew King, Laurie Menviel, Amelie Meyer, Valentina Ortiz Guzmán, Raina Roy, Irina Rudeva, Paul Spence, Peter G. Strutton, Tilo Ziehn
{"title":"Southern Annular Mode dynamics, projections and impacts in a changing climate","authors":"Ariaan Purich, Julie M. Arblaster, Ghyslaine Boschat, Zoe E. Gillett, Will Hobbs, Martin Jucker, Eun-Pa Lim, Danielle Udy, Nerilie Abram, Elio Campitelli, Edward Doddridge, Matthew H. England, Andrew King, Laurie Menviel, Amelie Meyer, Valentina Ortiz Guzmán, Raina Roy, Irina Rudeva, Paul Spence, Peter G. Strutton, Tilo Ziehn","doi":"10.1038/s43017-025-00746-y","DOIUrl":"10.1038/s43017-025-00746-y","url":null,"abstract":"The Southern Annular Mode (SAM) influences Southern Hemisphere temperature and precipitation, ocean circulation, carbon cycling and the Antarctic cryosphere. In this Review, we examine the dynamics, projections and effects of the SAM, focusing on future implications for the Southern Ocean and Antarctica. The SAM is the leading mode of atmospheric variability in the Southern Hemisphere extratropics, associated with variations in the mid-latitude westerly jet strength and position. The SAM is primarily an internally driven atmospheric process, for which anomalies dissipate in 1–2 weeks; however, sustained SAM anomalies can also be forced by stratospheric processes and tropical Pacific variability. Ozone depletion during the 1970s–1990s contributed to large positive trends in austral summer. The SAM is now in its most positive mean state in over 1,000 years, and a year-round positive trend in the SAM is projected to continue throughout the twenty-first century in response to increasing greenhouse gases. Given the importance of SAM effects on Southern Ocean circulation, carbon cycling, and Antarctic ice mass balance for future climate and sea level rise projections, it is crucial that the effects of SAM are better modelled and understood, including accounting for the influence of the shifting seasonality of positive SAM trends and its increasing asymmetry. The Southern Annular Mode (SAM) has shifted towards its positive phase owing to ozone depletion and increasing greenhouse gas concentrations. This Review discusses the dynamics, trends and projections of the SAM and how these will affect southern high-latitude climate, including Southern Ocean circulation, carbon cycling and the Antarctic cryosphere.","PeriodicalId":18921,"journal":{"name":"Nature Reviews Earth & Environment","volume":"7 1","pages":"24-42"},"PeriodicalIF":0.0,"publicationDate":"2025-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145958194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Seasonal and regional jet stream changes and drivers 季节性和区域性急流的变化和驱动因素
Nature Reviews Earth & Environment Pub Date : 2025-11-27 DOI: 10.1038/s43017-025-00749-9
Philipp Breul, Paulo Ceppi, Isla R. Simpson, Tim Woollings
{"title":"Seasonal and regional jet stream changes and drivers","authors":"Philipp Breul, Paulo Ceppi, Isla R. Simpson, Tim Woollings","doi":"10.1038/s43017-025-00749-9","DOIUrl":"10.1038/s43017-025-00749-9","url":null,"abstract":"The eddy-driven jet streams, which are regions of strong westerly wind in the mid-latitudes of both hemispheres, exert a leading influence on regional climate. In this Review, we outline the seasonally and regionally varying drivers, characteristics and changes in the jet streams. State-of-the-art models commonly predict a future polewards shift of the zonal-mean and annual-mean jet streams, typically ranging between 0° and 2° latitude by the end of the century under a high-emissions scenario, but with large model-to-model uncertainty. Furthermore, regional and seasonal projections can deviate substantially from the annual-mean and zonal-mean picture, and the drivers of these projected changes are not fully understood. Jet trends have emerged in the reanalysis record since 1979, of which a polewards shift of the summertime austral jet of ~0.3° per decade is the trend most clearly attributable to anthropogenic forcing. Although other trends have been observed, potentially large internal variability and incomplete understanding of the drivers of these trends precludes clear anthropogenic attribution at this point. Research is unevenly distributed across regions and seasons, with winter receiving the most attention, particularly in the North Atlantic. To support physical understanding and impact assessments, future research should provide a more complete picture of the seasonally and regionally varying jet stream drivers, and their changes, especially in spring and autumn. Eddy-driven jet streams have a strong influence on regional climate. This Review explores the seasonality and regional characteristics of mid-latitude eddy-driven jets, as well as the drivers influencing jet climatology and projected jet stream changes under continued anthropogenic climate change.","PeriodicalId":18921,"journal":{"name":"Nature Reviews Earth & Environment","volume":"6 12","pages":"824-842"},"PeriodicalIF":0.0,"publicationDate":"2025-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145695658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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