Pub Date : 2025-12-04DOI: 10.1038/s41561-025-01863-5
Yingjun Zhang, Brian B. Barnes, Deborah S. Goodwin, Amy N. S. Siuda, Jeffrey M. Schell, Dennis J. McGillicuddy Jr., Brian E. Lapointe, Lin Qi, Chuanmin Hu
The Sargasso Sea, at the centre of the North Atlantic subtropical gyre, draws its name from the endemic floating brown macroalgae, Sargassum, which provides shelter and habitat for life in the pelagic zone. In 2011, the Sargassum footprint expanded to include the Great Atlantic Sargassum Belt in the tropical Atlantic, but little is known about how Sargassum in the Sargasso Sea changed thereafter. Here we use satellite and in situ data to show that Sargassum in the north Sargasso Sea has declined dramatically since 2015. Accompanying this decline is a disruption in local Sargassum seasonal growth cycles, whereby the previously consistent fall-to-winter north Sargasso Sea biomass maxima have shifted to spring-to-summer peaks that mirror those of the Great Atlantic Sargassum Belt—a result of advection from this latter region. We posit that the north Sargasso Sea decline is due to reduced Sargassum supply from a historical Gulf of Mexico source region, possibly attributable to increasing sea surface temperatures and more frequent marine heatwaves in the Gulf of Mexico. Together, proliferation in the Great Atlantic Sargassum Belt and decline in the north Sargasso Sea may represent the beginnings of a regime shift in Sargassum distribution. Sargassum biomass in the north Sargasso Sea declined drastically since 2015, co-occurring with related reductions in the northwest Gulf of Mexico and an expansion of the Great Atlantic Sargassum Belt, according to in situ and satellite observations.
{"title":"Dramatic decline of Sargassum in the north Sargasso Sea since 2015","authors":"Yingjun Zhang, Brian B. Barnes, Deborah S. Goodwin, Amy N. S. Siuda, Jeffrey M. Schell, Dennis J. McGillicuddy Jr., Brian E. Lapointe, Lin Qi, Chuanmin Hu","doi":"10.1038/s41561-025-01863-5","DOIUrl":"10.1038/s41561-025-01863-5","url":null,"abstract":"The Sargasso Sea, at the centre of the North Atlantic subtropical gyre, draws its name from the endemic floating brown macroalgae, Sargassum, which provides shelter and habitat for life in the pelagic zone. In 2011, the Sargassum footprint expanded to include the Great Atlantic Sargassum Belt in the tropical Atlantic, but little is known about how Sargassum in the Sargasso Sea changed thereafter. Here we use satellite and in situ data to show that Sargassum in the north Sargasso Sea has declined dramatically since 2015. Accompanying this decline is a disruption in local Sargassum seasonal growth cycles, whereby the previously consistent fall-to-winter north Sargasso Sea biomass maxima have shifted to spring-to-summer peaks that mirror those of the Great Atlantic Sargassum Belt—a result of advection from this latter region. We posit that the north Sargasso Sea decline is due to reduced Sargassum supply from a historical Gulf of Mexico source region, possibly attributable to increasing sea surface temperatures and more frequent marine heatwaves in the Gulf of Mexico. Together, proliferation in the Great Atlantic Sargassum Belt and decline in the north Sargasso Sea may represent the beginnings of a regime shift in Sargassum distribution. Sargassum biomass in the north Sargasso Sea declined drastically since 2015, co-occurring with related reductions in the northwest Gulf of Mexico and an expansion of the Great Atlantic Sargassum Belt, according to in situ and satellite observations.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"18 12","pages":"1266-1272"},"PeriodicalIF":16.1,"publicationDate":"2025-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41561-025-01863-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145664878","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 : 2025-12-03DOI: 10.1038/s41561-025-01857-3
Marcel D. du Plessis, Sarah-Anne Nicholson, Isabelle Giddy, Pedro M. S. Monteiro, Channing J. Prend, Sebastiaan Swart
The Southern Ocean absorbs most of the excess heat resulting from climate change. However, climate projections show a persistent warm summer bias in its sea surface temperatures, indicating a limited understanding of the air–sea heat exchange mechanisms governing this region. Here we examine the impact of storms on the interannual variability of Southern Ocean surface temperatures during summer using in situ observations from underwater and surface robotic vehicles, climate reanalyses and satellite data. We show that synoptic-scale storms regulate summer sea surface temperatures through alteration of the effective heat capacity of the mixed layer and the entrainment of colder water from below. Storms reduce the summer ocean heat gain by limiting solar radiation reaching the surface. This effect is partially offset by a reduction in heat loss due to turbulent air–sea exchange. We also find that interannual variations in sea surface temperature during summer in the Southern Ocean are driven by changes in storm-mean wind speeds, which are linked to the Southern Annular Mode. Our results demonstrate a causal link between storm forcing and sea surface temperature variability, which is critical for reducing warming biases in climate models and improving future climate projections. Storms cool the Southern Ocean surface in summer mainly by deepening the mixed layer, but increased air–sea turbulent fluxes reduce ocean heat loss and partly offset the cooling, according to glider observations, reanalyses and satellite data.
{"title":"Southern Ocean summer warming is regulated by storm-driven mixing","authors":"Marcel D. du Plessis, Sarah-Anne Nicholson, Isabelle Giddy, Pedro M. S. Monteiro, Channing J. Prend, Sebastiaan Swart","doi":"10.1038/s41561-025-01857-3","DOIUrl":"10.1038/s41561-025-01857-3","url":null,"abstract":"The Southern Ocean absorbs most of the excess heat resulting from climate change. However, climate projections show a persistent warm summer bias in its sea surface temperatures, indicating a limited understanding of the air–sea heat exchange mechanisms governing this region. Here we examine the impact of storms on the interannual variability of Southern Ocean surface temperatures during summer using in situ observations from underwater and surface robotic vehicles, climate reanalyses and satellite data. We show that synoptic-scale storms regulate summer sea surface temperatures through alteration of the effective heat capacity of the mixed layer and the entrainment of colder water from below. Storms reduce the summer ocean heat gain by limiting solar radiation reaching the surface. This effect is partially offset by a reduction in heat loss due to turbulent air–sea exchange. We also find that interannual variations in sea surface temperature during summer in the Southern Ocean are driven by changes in storm-mean wind speeds, which are linked to the Southern Annular Mode. Our results demonstrate a causal link between storm forcing and sea surface temperature variability, which is critical for reducing warming biases in climate models and improving future climate projections. Storms cool the Southern Ocean surface in summer mainly by deepening the mixed layer, but increased air–sea turbulent fluxes reduce ocean heat loss and partly offset the cooling, according to glider observations, reanalyses and satellite data.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"19 1","pages":"75-83"},"PeriodicalIF":16.1,"publicationDate":"2025-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41561-025-01857-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145664883","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 : 2025-12-02DOI: 10.1038/s41561-025-01838-6
Yoshihiro Furukawa, Sako Sunami, Yoshinori Takano, Toshiki Koga, Yuta Hirakawa, Yasuhiro Oba, Hiroshi Naraoka, Daisuke Saigusa, Takaaki Yoshikawa, Satoru Tanaka, Daniel P. Glavin, Jason P. Dworkin, Harold C. Connolly Jr., Dante S. Lauretta
Deliveries of organic molecules from space, such as those found in carbonaceous meteorites, have long been hypothesized as a source of the inventory of the first life on Earth. This hypothesis is strengthened by detections of two of life’s fundamental building blocks—nucleobases and protein-building amino acids—in pristine samples returned by spacecraft from the carbonaceous asteroids Bennu and Ryugu. However, life also requires sugars, which cannot be searched for in Ryugu samples due to limited available mass, and their presence in some meteorites is equivocal owing to terrestrial exposure. Here we analyse an extract from a sample of asteroid (101955) Bennu collected by the OSIRIS-REx spacecraft and identify several bio-essential sugars, including ribose (RNA sugar) and glucose (metabolism substrate). These sugars complete the inventory of ingredients crucial to life. Their distribution is consistent with that in the condensation products of formaldehyde solution. Given that Bennu contains formaldehyde and originates from an ancient parent asteroid that underwent long-term alteration by aqueous fluids, we postulate that the detected sugars formed in the parent asteroid from brines containing formaldehyde. This indicates that material with all three components necessary to life could have been dispersed to prebiotic Earth and other inner planets. Samples returned from asteroid Bennu contain bio-essential sugars such as ribose and glucose that may have formed in the parent asteroid from brines containing formaldehyde, according to a geochemical study.
{"title":"Bio-essential sugars in samples from asteroid Bennu","authors":"Yoshihiro Furukawa, Sako Sunami, Yoshinori Takano, Toshiki Koga, Yuta Hirakawa, Yasuhiro Oba, Hiroshi Naraoka, Daisuke Saigusa, Takaaki Yoshikawa, Satoru Tanaka, Daniel P. Glavin, Jason P. Dworkin, Harold C. Connolly Jr., Dante S. Lauretta","doi":"10.1038/s41561-025-01838-6","DOIUrl":"10.1038/s41561-025-01838-6","url":null,"abstract":"Deliveries of organic molecules from space, such as those found in carbonaceous meteorites, have long been hypothesized as a source of the inventory of the first life on Earth. This hypothesis is strengthened by detections of two of life’s fundamental building blocks—nucleobases and protein-building amino acids—in pristine samples returned by spacecraft from the carbonaceous asteroids Bennu and Ryugu. However, life also requires sugars, which cannot be searched for in Ryugu samples due to limited available mass, and their presence in some meteorites is equivocal owing to terrestrial exposure. Here we analyse an extract from a sample of asteroid (101955) Bennu collected by the OSIRIS-REx spacecraft and identify several bio-essential sugars, including ribose (RNA sugar) and glucose (metabolism substrate). These sugars complete the inventory of ingredients crucial to life. Their distribution is consistent with that in the condensation products of formaldehyde solution. Given that Bennu contains formaldehyde and originates from an ancient parent asteroid that underwent long-term alteration by aqueous fluids, we postulate that the detected sugars formed in the parent asteroid from brines containing formaldehyde. This indicates that material with all three components necessary to life could have been dispersed to prebiotic Earth and other inner planets. Samples returned from asteroid Bennu contain bio-essential sugars such as ribose and glucose that may have formed in the parent asteroid from brines containing formaldehyde, according to a geochemical study.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"19 1","pages":"19-24"},"PeriodicalIF":16.1,"publicationDate":"2025-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41561-025-01838-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145665123","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 : 2025-12-01DOI: 10.1038/s41561-025-01845-7
Carmen Gaina
Complex numerical simulations show how slivers of continental crust in the ocean were shaved from continental margins and then transported by transform fault complexes.
复杂的数值模拟表明，海洋中的大陆地壳是如何从大陆边缘被剥离出来，然后被转换断层复合体搬运的。
{"title":"Shaving continents into the oceans","authors":"Carmen Gaina","doi":"10.1038/s41561-025-01845-7","DOIUrl":"10.1038/s41561-025-01845-7","url":null,"abstract":"Complex numerical simulations show how slivers of continental crust in the ocean were shaved from continental margins and then transported by transform fault complexes.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"18 12","pages":"1191-1192"},"PeriodicalIF":16.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145645252","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 : 2025-12-01DOI: 10.1038/s41561-025-01853-7
Huang Huang, Marcus Gutjahr, Yuanyang Hu, Frerk Pöppelmeier, Gerhard Kuhn, Jörg Lippold, Thomas A. Ronge, Shuzhuang Wu, Patrick Blaser, Lester Lembke-Jene, Samuel L. Jaccard, Yimin Luo, Jimin Yu
Past atmospheric CO2 fluctuations are thought to be intricately tied to ocean circulation changes involving Southern Ocean and North Atlantic dynamics. The ocean’s capability to store carbon has been linked to the expansion and contraction of southern-sourced waters, but their provenance and structure remain poorly characterized in the past. Here we present neodymium isotope data from the Weddell–Enderby Basin, placing constraints on the spatiotemporal distribution of Antarctic Bottom Water in the Atlantic and Indian sectors of the Southern Ocean over the past 32,000 years. Our data reveal that glacial Antarctic Bottom Water was substantially contracted, with large volumes of the deep Southern Ocean occupied by carbon-rich Circumpolar Deep Waters sourced from the Pacific Ocean, conducive for lowering atmospheric CO2. During the last deglaciation, Antarctic Bottom Water expanded in two steps coinciding with Antarctic warming. This expansion drove Southern Ocean destratification, which possibly contributed to contemporaneous atmospheric CO2 rises. Different from the view that the North Atlantic processes dominated deglacial deep South Atlantic water-mass changes, our results indicate only limited influence from northern-sourced waters. Instead, Antarctic Bottom Water dynamics played a critical role in regulating deep ocean circulation and thereby carbon exchange between the deep Southern Ocean and the atmosphere. Antarctic Bottom Water progressively filled more of the deep Southern Ocean through the last deglaciation, potentially contributing to the increase in atmospheric CO2, according to neodymium isotope records from the Weddell–Enderby Basin.
{"title":"Expansion of Antarctic Bottom Water driven by Antarctic warming in the last deglaciation","authors":"Huang Huang, Marcus Gutjahr, Yuanyang Hu, Frerk Pöppelmeier, Gerhard Kuhn, Jörg Lippold, Thomas A. Ronge, Shuzhuang Wu, Patrick Blaser, Lester Lembke-Jene, Samuel L. Jaccard, Yimin Luo, Jimin Yu","doi":"10.1038/s41561-025-01853-7","DOIUrl":"10.1038/s41561-025-01853-7","url":null,"abstract":"Past atmospheric CO2 fluctuations are thought to be intricately tied to ocean circulation changes involving Southern Ocean and North Atlantic dynamics. The ocean’s capability to store carbon has been linked to the expansion and contraction of southern-sourced waters, but their provenance and structure remain poorly characterized in the past. Here we present neodymium isotope data from the Weddell–Enderby Basin, placing constraints on the spatiotemporal distribution of Antarctic Bottom Water in the Atlantic and Indian sectors of the Southern Ocean over the past 32,000 years. Our data reveal that glacial Antarctic Bottom Water was substantially contracted, with large volumes of the deep Southern Ocean occupied by carbon-rich Circumpolar Deep Waters sourced from the Pacific Ocean, conducive for lowering atmospheric CO2. During the last deglaciation, Antarctic Bottom Water expanded in two steps coinciding with Antarctic warming. This expansion drove Southern Ocean destratification, which possibly contributed to contemporaneous atmospheric CO2 rises. Different from the view that the North Atlantic processes dominated deglacial deep South Atlantic water-mass changes, our results indicate only limited influence from northern-sourced waters. Instead, Antarctic Bottom Water dynamics played a critical role in regulating deep ocean circulation and thereby carbon exchange between the deep Southern Ocean and the atmosphere. Antarctic Bottom Water progressively filled more of the deep Southern Ocean through the last deglaciation, potentially contributing to the increase in atmospheric CO2, according to neodymium isotope records from the Weddell–Enderby Basin.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"19 1","pages":"113-119"},"PeriodicalIF":16.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145645232","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 : 2025-11-28DOI: 10.1038/s41561-025-01858-2
Adrien Wehrlé, Martin P. Lüthi, Andrea Kneib-Walter, Ana Nap, Hugo Rousseau, Guillaume Jouvet, Fabian Walter
Outlet glaciers and ice streams of the ice sheet of Kalaallit Nunaat (Greenland) transport ice from the interior towards the ocean, so understanding their dynamics is crucial in the context of accelerating Arctic warming. Glacier flow dynamics are predominantly monitored by satellites, thus important processes that occur on timescales shorter than the acquisition frequency (typically days) remain undetected. Therefore, the short-term dynamics of fast-flowing glaciers remains poorly understood and insufficiently constrained in numerical models. Here we use high-rate field observations by global navigation satellite system stations and a Terrestrial Radar Interferometer on Greenland’s fastest ice stream, Sermeq Kujalleq in Kangia (Jakobshavn Isbræ), to characterize its response to the drainage of two surface lakes. The ensuing subglacial flood caused a pulse of faster flow that rapidly propagated downstream—over 16 km within 4 hours—towards the terminus, where it triggered a longer than usual calving episode, lasting 2 hours. The undamped and fast propagation of this speed-up pulse, together with the instantaneous response of the surrounding shear margins, indicate strong coupling within the ice-stream system. Our results highlight how inland areas can accommodate large disturbances with minimal long-term impact on ice motion and efficiently propagate them downstream to trigger irreversible changes at glacier termini. Drainage of two surface lakes on Greenland’s fastest ice stream caused a pulse of faster flow to propagate downstream and triggered a long calving episode, suggesting the entire stream is strongly coupled, according to geophysical field observations.
{"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":"10.1038/s41561-025-01858-2","url":null,"abstract":"Outlet glaciers and ice streams of the ice sheet of Kalaallit Nunaat (Greenland) transport ice from the interior towards the ocean, so understanding their dynamics is crucial in the context of accelerating Arctic warming. Glacier flow dynamics are predominantly monitored by satellites, thus important processes that occur on timescales shorter than the acquisition frequency (typically days) remain undetected. Therefore, the short-term dynamics of fast-flowing glaciers remains poorly understood and insufficiently constrained in numerical models. Here we use high-rate field observations by global navigation satellite system stations and a Terrestrial Radar Interferometer on Greenland’s fastest ice stream, Sermeq Kujalleq in Kangia (Jakobshavn Isbræ), to characterize its response to the drainage of two surface lakes. The ensuing subglacial flood caused a pulse of faster flow that rapidly propagated downstream—over 16 km within 4 hours—towards the terminus, where it triggered a longer than usual calving episode, lasting 2 hours. The undamped and fast propagation of this speed-up pulse, together with the instantaneous response of the surrounding shear margins, indicate strong coupling within the ice-stream system. Our results highlight how inland areas can accommodate large disturbances with minimal long-term impact on ice motion and efficiently propagate them downstream to trigger irreversible changes at glacier termini. Drainage of two surface lakes on Greenland’s fastest ice stream caused a pulse of faster flow to propagate downstream and triggered a long calving episode, suggesting the entire stream is strongly coupled, according to geophysical field observations.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"19 1","pages":"84-89"},"PeriodicalIF":16.1,"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 : 2025-11-26DOI: 10.1038/s41561-025-01869-z
High-resolution global climate simulations reveal that mesoscale moisture convergence, rather than thermodynamic effects alone, drives much of the projected intensification of extreme rainfall under warming. These results demonstrate that better representing mesoscale dynamics substantially improves the robustness of future rainfall projections, offering critical insights for flood-risk assessment and climate adaptation.
{"title":"Mesoscale moisture convergence drives stronger rainfall extremes","authors":"","doi":"10.1038/s41561-025-01869-z","DOIUrl":"10.1038/s41561-025-01869-z","url":null,"abstract":"High-resolution global climate simulations reveal that mesoscale moisture convergence, rather than thermodynamic effects alone, drives much of the projected intensification of extreme rainfall under warming. These results demonstrate that better representing mesoscale dynamics substantially improves the robustness of future rainfall projections, offering critical insights for flood-risk assessment and climate adaptation.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"19 1","pages":"10-11"},"PeriodicalIF":16.1,"publicationDate":"2025-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145599615","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：