Pub Date : 2025-11-28DOI: 10.1038/s41561-025-01858-2
Adrien Wehrlé, Martin P. Lüthi, Andrea Kneib-Walter, Ana Nap, Hugo Rousseau, Guillaume Jouvet, Fabian Walter
{"title":"Velocity and calving response of a major Greenland ice stream to a lake drainage event","authors":"Adrien Wehrlé, Martin P. Lüthi, Andrea Kneib-Walter, Ana Nap, Hugo Rousseau, Guillaume Jouvet, Fabian Walter","doi":"10.1038/s41561-025-01858-2","DOIUrl":"https://doi.org/10.1038/s41561-025-01858-2","url":null,"abstract":"","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"1 1","pages":""},"PeriodicalIF":18.3,"publicationDate":"2025-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145611457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-25DOI: 10.1038/s41561-025-01860-8
Our simulations identified how small, swirling ocean eddies carry and mix warm water beneath Thwaites ice cavities in the Amundsen Sea Embayment, West Antarctica. Much like how storms in the atmosphere batter coastlines, these energetic eddies enhanced mixing at the ice-shelf base and substantially increased submarine melting.
{"title":"Weather-like ocean processes modulate Antarctic ice-shelf melting","authors":"","doi":"10.1038/s41561-025-01860-8","DOIUrl":"10.1038/s41561-025-01860-8","url":null,"abstract":"Our simulations identified how small, swirling ocean eddies carry and mix warm water beneath Thwaites ice cavities in the Amundsen Sea Embayment, West Antarctica. Much like how storms in the atmosphere batter coastlines, these energetic eddies enhanced mixing at the ice-shelf base and substantially increased submarine melting.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"18 12","pages":"1196-1197"},"PeriodicalIF":16.1,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145593891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-25DOI: 10.1038/s41561-025-01844-8
Enner Alcântara, Cheila Flavia Baião, Yasmim Guimarães, José A. Marengo, José Roberto Mantovani
Flash floods must be placed at the heart of Earth system science and global climate adaptation efforts, as they increasingly define hydroclimate risk in a warming world.
山洪暴发必须成为地球系统科学和全球气候适应工作的核心，因为它们日益成为全球变暖中的水文气候风险。
{"title":"Tropical flash floods are becoming more frequent and widespread but are still underestimated","authors":"Enner Alcântara, Cheila Flavia Baião, Yasmim Guimarães, José A. Marengo, José Roberto Mantovani","doi":"10.1038/s41561-025-01844-8","DOIUrl":"10.1038/s41561-025-01844-8","url":null,"abstract":"Flash floods must be placed at the heart of Earth system science and global climate adaptation efforts, as they increasingly define hydroclimate risk in a warming world.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"18 12","pages":"1182-1184"},"PeriodicalIF":16.1,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145593892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-24DOI: 10.1038/s41561-025-01824-y
Andrew McCaig
Drill cores from the mid-ocean ridge in the South Atlantic suggest that mass-wasting deposits formed against ridge faults host abundant calcite and so may store substantial amounts of carbon dioxide.
{"title":"Submarine talus may contribute to climate cooling","authors":"Andrew McCaig","doi":"10.1038/s41561-025-01824-y","DOIUrl":"10.1038/s41561-025-01824-y","url":null,"abstract":"Drill cores from the mid-ocean ridge in the South Atlantic suggest that mass-wasting deposits formed against ridge faults host abundant calcite and so may store substantial amounts of carbon dioxide.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"18 12","pages":"1187-1188"},"PeriodicalIF":16.1,"publicationDate":"2025-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145583073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-24DOI: 10.1038/s41561-025-01839-5
Rosalind M. Coggon, Elliot J. Carter, Lewis J. C. Grant, Aled D. Evans, Christopher M. Lowery, Damon A. H. Teagle, Pamela D. Kempton, Matthew J. Cooper, Claire M. Routledge, Elmar Albers, Justin Estep, Gail L. Christeson, Michelle Harris, Thomas M. Belgrano, Jason B. Sylvan, Julia S. Reece, Emily R. Estes, Trevor Williams, on behalf of The South Atlantic Transect IODP Expedition 390 & 393 Scientists
Calcium carbonate precipitation in ageing ocean crust sequesters carbon dioxide dissolved in seawater through seafloor weathering reactions, influencing atmospheric CO2 concentrations on million-year timescales. However, this crustal carbon sink, and the extent it balances CO2 degassing during crustal formation at mid-ocean ridges, remain poorly quantified due to limited sampling of the vast ridge flanks where CO2 uptake continues for millions of years. Here we quantify the carbon sink hosted within talus breccias that accumulated through mass wasting 61 million years ago during rift faulting at the slow spreading Mid-Atlantic Ridge, cored during International Ocean Discovery Program South Atlantic Transect Expedition 390. After 40 million years of carbonate cementation, these breccias contain ~7.5 wt% seawater-derived CO2, 2 to 40 times more than previously cored upper crust. Our estimates of talus breccia abundance based on fault geometries indicate that talus formed at slow-spreading ridges can accommodate a CO2 sink equivalent to a large proportion of the CO2 released during accretion of the underlying crust. The proportion of plate divergence accommodated by faulting, and hence talus abundance, increases nonlinearly with decreasing spreading rate. Consequently, past variations in spreading rate may have impacted the balance between ocean crust CO2 release and uptake in Earth’s carbon cycle. Mass-wasting deposits that accumulated against mid-ocean ridge faults have high porosity in which calcium carbonate precipitated, storing seawater carbon dioxide, as revealed by cores of a 61-million-year-old seafloor talus deposit.
{"title":"A geological carbon cycle sink hosted by ocean crust talus breccias","authors":"Rosalind M. Coggon, Elliot J. Carter, Lewis J. C. Grant, Aled D. Evans, Christopher M. Lowery, Damon A. H. Teagle, Pamela D. Kempton, Matthew J. Cooper, Claire M. Routledge, Elmar Albers, Justin Estep, Gail L. Christeson, Michelle Harris, Thomas M. Belgrano, Jason B. Sylvan, Julia S. Reece, Emily R. Estes, Trevor Williams, on behalf of The South Atlantic Transect IODP Expedition 390 & 393 Scientists","doi":"10.1038/s41561-025-01839-5","DOIUrl":"10.1038/s41561-025-01839-5","url":null,"abstract":"Calcium carbonate precipitation in ageing ocean crust sequesters carbon dioxide dissolved in seawater through seafloor weathering reactions, influencing atmospheric CO2 concentrations on million-year timescales. However, this crustal carbon sink, and the extent it balances CO2 degassing during crustal formation at mid-ocean ridges, remain poorly quantified due to limited sampling of the vast ridge flanks where CO2 uptake continues for millions of years. Here we quantify the carbon sink hosted within talus breccias that accumulated through mass wasting 61 million years ago during rift faulting at the slow spreading Mid-Atlantic Ridge, cored during International Ocean Discovery Program South Atlantic Transect Expedition 390. After 40 million years of carbonate cementation, these breccias contain ~7.5 wt% seawater-derived CO2, 2 to 40 times more than previously cored upper crust. Our estimates of talus breccia abundance based on fault geometries indicate that talus formed at slow-spreading ridges can accommodate a CO2 sink equivalent to a large proportion of the CO2 released during accretion of the underlying crust. The proportion of plate divergence accommodated by faulting, and hence talus abundance, increases nonlinearly with decreasing spreading rate. Consequently, past variations in spreading rate may have impacted the balance between ocean crust CO2 release and uptake in Earth’s carbon cycle. Mass-wasting deposits that accumulated against mid-ocean ridge faults have high porosity in which calcium carbonate precipitated, storing seawater carbon dioxide, as revealed by cores of a 61-million-year-old seafloor talus deposit.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"18 12","pages":"1279-1286"},"PeriodicalIF":16.1,"publicationDate":"2025-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41561-025-01839-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145699209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-24DOI: 10.1038/s41561-025-01880-4
Aliénor Lavergne
{"title":"Fingerprints of stratospheric particle transport and fallout","authors":"Aliénor Lavergne","doi":"10.1038/s41561-025-01880-4","DOIUrl":"https://doi.org/10.1038/s41561-025-01880-4","url":null,"abstract":"","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"5 1","pages":""},"PeriodicalIF":18.3,"publicationDate":"2025-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145583074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-20DOI: 10.1038/s41561-025-01850-w
Nitrite, a key player in the ocean’s nitrogen cycle, accumulates in deoxygenated waters for reasons that remain unclear. Our chemostat and three-dimensional models showed that competition amongst aerobic (oxygen-dependent) and anaerobic (oxygen-independent) microbes, rather than a lack of nitrite consumers, contributes to nitrite’s accumulation in anoxic waters.
{"title":"Consumers of nitrite help nitrite accumulate in anoxic oceanic zones","authors":"","doi":"10.1038/s41561-025-01850-w","DOIUrl":"10.1038/s41561-025-01850-w","url":null,"abstract":"Nitrite, a key player in the ocean’s nitrogen cycle, accumulates in deoxygenated waters for reasons that remain unclear. Our chemostat and three-dimensional models showed that competition amongst aerobic (oxygen-dependent) and anaerobic (oxygen-independent) microbes, rather than a lack of nitrite consumers, contributes to nitrite’s accumulation in anoxic waters.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"18 12","pages":"1198-1199"},"PeriodicalIF":16.1,"publicationDate":"2025-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145554309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-18DOI: 10.1038/s41561-025-01859-1
Ping Chang, Dan Fu, Xue Liu, Frederic S. Castruccio, Andreas F. Prein, Gokhan Danabasoglu, Xiaoqi Wang, Julio Bacmeister, Qiuying Zhang, Nan Rosenbloom, Teagan King, Susan C. Bates
{"title":"Future extreme precipitation amplified by intensified mesoscale moisture convergence","authors":"Ping Chang, Dan Fu, Xue Liu, Frederic S. Castruccio, Andreas F. Prein, Gokhan Danabasoglu, Xiaoqi Wang, Julio Bacmeister, Qiuying Zhang, Nan Rosenbloom, Teagan King, Susan C. Bates","doi":"10.1038/s41561-025-01859-1","DOIUrl":"https://doi.org/10.1038/s41561-025-01859-1","url":null,"abstract":"","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"171 1","pages":""},"PeriodicalIF":18.3,"publicationDate":"2025-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145536233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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