Communications Earth & Environment最新文献_第9页

Ocean acidification at the Toarcian Anoxic Event captured by boron isotopes in the lime mud record. 石灰泥记录中的硼同位素捕获了托瓦西亚缺氧事件的海洋酸化。

IF 8.1 1区地球科学

Communications Earth & Environment Pub Date : 2025-01-01 Epub Date: 2025-07-05 DOI: 10.1038/s43247-025-02510-y

Simone A Kasemann, Tina Klein, Richard A Boyle, Clemens V Ullmann, Martin Aberhan, Anette Meixner, Luís V Duarte, Timothy M Lenton, Veronica Piazza, Rachel A Wood

{"title":"Ocean acidification at the Toarcian Anoxic Event captured by boron isotopes in the lime mud record.","authors":"Simone A Kasemann, Tina Klein, Richard A Boyle, Clemens V Ullmann, Martin Aberhan, Anette Meixner, Luís V Duarte, Timothy M Lenton, Veronica Piazza, Rachel A Wood","doi":"10.1038/s43247-025-02510-y","DOIUrl":"10.1038/s43247-025-02510-y","url":null,"abstract":"The Toarcian Oceanic Anoxic Event (ca. 183 million years ago) marks a global mass extinction coincident with dramatic changes in climate and ocean circulation, likely driven by large igneous province emplacement. Rapid carbon dioxide release may have induced global warming, widespread ocean deoxygenation, and ocean acidification. To constrain the magnitude of ocean acidification, we present boron isotope data from three different carbonate components, lime mud (micrite), brachiopods, and bivalves, from two marine sections in SW Europe. Only data from micrite shows a temporary decrease in boron isotope composition during the Toarcian Oceanic Anoxic Event, recording an ocean acidification event, which we reproduce using a coupled biogeochemical model. The contrasting stability of boron isotope values shown by bivalves and brachiopods suggests that the investigated taxa may have been able to physiologically buffer changes in ocean pH, and are therefore poor targets for the interrogation of pH changes in Earth history.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"6 1","pages":"533"},"PeriodicalIF":8.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12228580/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144583277","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}

引用次数: 0

Cerium occurs as cerium-phosphate clusters around bioapatite nanocrystals in deep-sea sediments. 在深海沉积物中，铈以铈-磷酸盐团簇形式存在于生物磷灰石纳米晶体周围。

IF 8.1 1区地球科学

Communications Earth & Environment Pub Date : 2025-01-01 Epub Date: 2025-06-16 DOI: 10.1038/s43247-025-02439-2

Alain Manceau, Anne-Claire Gaillot, Jianlin Liao, Yan Li, Olivier Mathon, Kirill A Lomachenko, Pieter Glatzel, Alexandre Simionovici, Mélanie Balvay, Sophie A L Paul, Andrea Koschinsky, Stephan N Steinmann

{"title":"Cerium occurs as cerium-phosphate clusters around bioapatite nanocrystals in deep-sea sediments.","authors":"Alain Manceau, Anne-Claire Gaillot, Jianlin Liao, Yan Li, Olivier Mathon, Kirill A Lomachenko, Pieter Glatzel, Alexandre Simionovici, Mélanie Balvay, Sophie A L Paul, Andrea Koschinsky, Stephan N Steinmann","doi":"10.1038/s43247-025-02439-2","DOIUrl":"10.1038/s43247-025-02439-2","url":null,"abstract":"Deep-sea mud is rich in rare-earth elements, primarily found in fluorapatite, a mineral deposit that forms over hundreds of thousands to millions of years through the accumulation of fish remains. After fish die, biogenic apatite captures rare earth elements from seawater on the seafloor and from pore waters during the diagenesis process. The conventional model for rare earth element enrichment suggests that they are incorporated into the bioapatite crystal structure through solid-state diffusion. However, our data reveal that cerium atoms are instead precipitated within an amorphous layer surrounding bioapatite nanocrystals, as shown by high-energy-resolution X-ray absorption spectroscopy and transmission electron microscopy. Computational simulations further support this finding, predicting that cerium atoms cluster on the surface of fluorapatite. These results suggest that the fluorapatite-water interface plays a crucial role in the enrichment of cerium, as well as other rare earth elements, in marine sediments.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"6 1","pages":"466"},"PeriodicalIF":8.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12170343/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144324682","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}

引用次数: 0

Sea ice controls net ocean uptake of carbon dioxide by regulating wintertime stratification. 海冰通过调节冬季分层来控制海洋对二氧化碳的净吸收。

IF 8.1 1区地球科学

Communications Earth & Environment Pub Date : 2025-01-01 Epub Date: 2025-06-18 DOI: 10.1038/s43247-025-02395-x

Elise S Droste, Dorothee C E Bakker, Hugh J Venables, Elizabeth M Jones, Michael P Meredith, Giorgio Dall'Olmo, Mario Hoppema, Oliver J Legge, Gareth A Lee, Bastien Y Queste

{"title":"Sea ice controls net ocean uptake of carbon dioxide by regulating wintertime stratification.","authors":"Elise S Droste, Dorothee C E Bakker, Hugh J Venables, Elizabeth M Jones, Michael P Meredith, Giorgio Dall'Olmo, Mario Hoppema, Oliver J Legge, Gareth A Lee, Bastien Y Queste","doi":"10.1038/s43247-025-02395-x","DOIUrl":"10.1038/s43247-025-02395-x","url":null,"abstract":"Sea-air exchange of carbon dioxide in the Southern Ocean is strongly seasonal, with ocean uptake in summer, which is partly offset by carbon dioxide outgassing in winter. This seasonal balance can shift due to sea ice conditions, inducing interannual variability in the Southern Ocean carbon sink. A decade (2010-2020) of unique, year-round marine carbonate chemistry observations from the Rothera Time Series (West Antarctic Peninsula) reveals that interannual variability in seawater fugacity of carbon dioxide depends on wintertime processes. Sea ice duration controls ocean stratification, which acts as a gateway to the carbon-rich ocean interior. Consequently, years with persistent sea ice cover and high mean winter stratification absorb, on average, 20% more carbon dioxide than years with less sea ice and weaker stratification in winter. Wintertime marine observations are therefore essential to resolve critical processes and reliably quantify interannual variability of the sea-air carbon dioxide flux in seasonally sea ice-covered regions.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"6 1","pages":"457"},"PeriodicalIF":8.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12176633/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144368705","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}

引用次数: 0

Monsoonal imprint on late Quaternary landscapes of the Rub' al Khali Desert. 鲁卜哈利沙漠晚第四纪景观的季风印记。

IF 8.1 1区地球科学

Communications Earth & Environment Pub Date : 2025-01-01 Epub Date: 2025-04-03 DOI: 10.1038/s43247-025-02224-1

Abdallah S Zaki, Antoine Delaunay, Guillaume Baby, Negar Haghipour, Cécile Blanchet, Anne Dallmeyer, Pietro Sternai, Sam Woor, Omar Wani, Hany Khalil, Mathieu Schuster, Michael Petraglia, Florence Sylvestre, Giovan Peyrotty, Mohamed Ali, Frans Van Buchem, Abdulkader M Afifi, Sébastien Castelltort

{"title":"Monsoonal imprint on late Quaternary landscapes of the Rub' al Khali Desert.","authors":"Abdallah S Zaki, Antoine Delaunay, Guillaume Baby, Negar Haghipour, Cécile Blanchet, Anne Dallmeyer, Pietro Sternai, Sam Woor, Omar Wani, Hany Khalil, Mathieu Schuster, Michael Petraglia, Florence Sylvestre, Giovan Peyrotty, Mohamed Ali, Frans Van Buchem, Abdulkader M Afifi, Sébastien Castelltort","doi":"10.1038/s43247-025-02224-1","DOIUrl":"10.1038/s43247-025-02224-1","url":null,"abstract":"Abundant geomorphological, biological, and isotopic records show that Arabia repeatedly underwent significant climate-driven environmental changes during late Quaternary humid periods. Precisely mapping how the enhancement and expansion of the African Monsoon during these humid periods have affected landscape evolution and human occupation dynamics in Arabia remains a scientific challenge. Here we reconstruct an ancient water-sculpted landscape consisting of lake and river deposits, coupled with a large outlet valley in the Rub' al Khali Desert of Saudi Arabia. During the peak of the Holocene Humid Period or before, intense rainfall reactivated alluvial floodplains and filled a ~1100 km² topographic depression, which eventually breached, carving a deep ~150 km-long valley. Coupling geologic reconstructions with transient Earth system model simulations shows that this hydrological activity was linked to higher seasonal precipitation punctuated by repeated heavy events. Analysis of lacustrine and fluvial sedimentary deposits implies sediment routing across distances of up to 1000 km from the Asir Mountains. Our results indicate that such intense flooding challenges the conventional view of simple, weak, and linear landscape stabilization following increased rainfall in Arabia. Our findings highlight the crucial role of an enhanced African Monsoon in driving rapid landscape transformations in the Arabian Desert.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"6 1","pages":"255"},"PeriodicalIF":8.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11968403/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143794938","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}

引用次数: 0

Seasonal velocity patterns provide insights for the soft-bed subglacial hydrology continuum. 季节流速模式提供了对软床冰下水文连续体的见解。

IF 8.1 1区地球科学

Communications Earth & Environment Pub Date : 2025-01-01 Epub Date: 2025-03-21 DOI: 10.1038/s43247-025-02198-0

Jane K Hart, Nathaniel R Baurley, Amy Bonnie, Benjamin A Robson, Graeme Bragg, Kirk Martinez

引用次数: 0

The 2023 M_w 7.8-7.7 Kahramanmaraş earthquakes were loosely slip-predictable. 2023年kahramanmaraki 7.8-7.7 Mw地震是松散的滑动可预测的。

IF 8.1 1区地球科学

Communications Earth & Environment Pub Date : 2025-01-01 Epub Date: 2025-02-05 DOI: 10.1038/s43247-024-01969-5

Ellis Vavra, Yuri Fialko, Fatih Bulut, Aslı Garagon, Sefa Yalvaç, Cenk Yaltırak

{"title":"The 2023 Mw 7.8-7.7 Kahramanmaraş earthquakes were loosely slip-predictable.","authors":"Ellis Vavra, Yuri Fialko, Fatih Bulut, Aslı Garagon, Sefa Yalvaç, Cenk Yaltırak","doi":"10.1038/s43247-024-01969-5","DOIUrl":"10.1038/s43247-024-01969-5","url":null,"abstract":"Understanding the behavior of large earthquakes over multiple seismic cycles is limited by short time spans of observations compared to recurrence intervals. Most of large instrumentally-recorded earthquakes have occurred on faults lacking well-documented histories of past events. The 2023 Mw 7.8-7.7 Kahramanmaraş earthquake doublet is exceptional as it ruptured multiple segments of the East Anatolian Fault (EAF) system, where historical records of devastating earthquakes span over two millennia. Here, we use historical earthquake records, measurements of interseismic deformation, and published slip models of the 2023 events to evaluate the recurrence patterns of large earthquakes. We compare slip deficit that accrued on each fault segment since the respective penultimate events to the average coseismic slip of the 2023 doublet. We find that the coseismic slip equaled to or exceeded the accumulated slip deficit, suggesting that the slip-predictable recurrence model applies as a lower bound on strain release during the Kahramanmaraş earthquakes.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"6 1","pages":"80"},"PeriodicalIF":8.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11798867/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143381748","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}

引用次数: 0

Insights into silicon cycling from ice sheet to coastal ocean from isotope geochemistry. 从同位素地球化学角度了解从冰盖到沿海海洋的硅循环。

IF 8.1 1区地球科学

Communications Earth & Environment Pub Date : 2025-01-01 Epub Date: 2025-04-19 DOI: 10.1038/s43247-025-02264-7

Katharine R Hendry, Felipe Sales de Freitas, Sandra Arndt, Alexander Beaton, Lisa Friberg, Jade E Hatton, Jonathan R Hawkings, Rhiannon L Jones, Jeffrey W Krause, Lorenz Meire, Hong Chin Ng, Helena Pryer, Sarah Tingey, Sebastiaan J van de Velde, Jemma Wadham, Tong Wang, E Malcolm S Woodward

{"title":"Insights into silicon cycling from ice sheet to coastal ocean from isotope geochemistry.","authors":"Katharine R Hendry, Felipe Sales de Freitas, Sandra Arndt, Alexander Beaton, Lisa Friberg, Jade E Hatton, Jonathan R Hawkings, Rhiannon L Jones, Jeffrey W Krause, Lorenz Meire, Hong Chin Ng, Helena Pryer, Sarah Tingey, Sebastiaan J van de Velde, Jemma Wadham, Tong Wang, E Malcolm S Woodward","doi":"10.1038/s43247-025-02264-7","DOIUrl":"https://doi.org/10.1038/s43247-025-02264-7","url":null,"abstract":"The polar regions are biologically productive and play a critical role in regional and global biogeochemical cycling. A key nutrient is dissolved silicon, required for the growth of siliceous phytoplankton, diatoms, which form an important component of polar ecosystems. Glacial weathering is thought to be an important dissolved silicon source to coastal waters, especially critical in regions experiencing seasonal silicon limitation of diatom growth. However, complex physical and biogeochemical interactions in fjords and coastal regions modulate the downstream supply of dissolved and particulate nutrients, including silicon. Here, we review the biogeochemical complexities of glaciated margins and the insights into this system that silicon isotope geochemistry offer. We show that stable and radioisotopic measurements and biogeochemical numerical modelling provide a quantitative mechanistic understanding of subglacial silica mobilisation and its cycling across the land-ocean continuum. Subglacial weathering produces isotopically light amorphous silica, which dissolves in seawater to release dissolved silicon. Our findings show that isotopically light, detrital silica, likely containing glacial material, reaches the ocean and there could support a substantial proportion of diatom productivity, especially in the Arctic. Outstanding questions about silicon cycling in these crucial environments will be addressed through novel and cross-discipline approaches that overcome traditionally viewed ecosystem boundaries.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"6 1","pages":"305"},"PeriodicalIF":8.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12009215/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143966133","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}

引用次数: 0

Tracking air pollution and CO₂ emissions in 13,189 urban areas worldwide using large geospatial datasets. 利用大型地理空间数据集跟踪全球13189个城市地区的空气污染和二氧化碳排放。

IF 8.1 1区地球科学

Communications Earth & Environment Pub Date : 2025-01-01 Epub Date: 2025-05-07 DOI: 10.1038/s43247-025-02270-9

Soo-Yeon Kim, Gaige Hunter Kerr, Aaron van Donkelaar, Randall V Martin, J Jason West, Susan C Anenberg

{"title":"Tracking air pollution and CO2 emissions in 13,189 urban areas worldwide using large geospatial datasets.","authors":"Soo-Yeon Kim, Gaige Hunter Kerr, Aaron van Donkelaar, Randall V Martin, J Jason West, Susan C Anenberg","doi":"10.1038/s43247-025-02270-9","DOIUrl":"https://doi.org/10.1038/s43247-025-02270-9","url":null,"abstract":"Air pollution and climate change are urgent global concerns, with urban areas contributing heavily to both air pollutants and greenhouse gas emissions. Here we calculate fine particulate matter, nitrogen dioxide, and ozone concentrations and fossil-fuel carbon dioxide emissions per capita in 13,189 urban areas worldwide from 2005 to 2019 and analyze correlations between trends for these pollutants, leveraging recently-developed global datasets. Globally, we found significant increases in ozone (+6%) and small, non-significant changes in fine particulate matter (+0%), nitrogen dioxide (-1%), and fossil-fuel carbon dioxide emissions (+4%). Also, over 50% of urban areas showed positive correlations for all pollutant pairs, though results varied by global region. High-income countries with strong mitigation policies experienced decreases in all pollutants, while regions with rapid economic growth had overall increases. This study shows the impacts of urban environmental initiatives in different regions and provides insights for reducing air pollution and carbon dioxide emissions simultaneously.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"6 1","pages":"311"},"PeriodicalIF":8.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12058515/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143968866","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}

引用次数: 0

Radiative cooling in New York/New Jersey metropolitan areas by wildfire particulate matter emitted from the Canadian wildfires of 2023. 2023年加拿大野火排放的颗粒物质对纽约/新泽西大都市地区的辐射冷却。

IF 8.1 1区地球科学

Communications Earth & Environment Pub Date : 2025-01-01 Epub Date: 2025-04-21 DOI: 10.1038/s43247-025-02214-3

Georgios A Kelesidis, Constantinos Moularas, Hooman Parhizkar, Leonardo Calderon, Irini Tsiodra, Nikolaos Mihalopoulos, Ilias Kavouras, Marios-Bruno Korras-Carraca, Nikolaos Hatzianastassiou, Panos G Georgopoulos, José G Cedeño Laurent, Philip Demokritou

{"title":"Radiative cooling in New York/New Jersey metropolitan areas by wildfire particulate matter emitted from the Canadian wildfires of 2023.","authors":"Georgios A Kelesidis, Constantinos Moularas, Hooman Parhizkar, Leonardo Calderon, Irini Tsiodra, Nikolaos Mihalopoulos, Ilias Kavouras, Marios-Bruno Korras-Carraca, Nikolaos Hatzianastassiou, Panos G Georgopoulos, José G Cedeño Laurent, Philip Demokritou","doi":"10.1038/s43247-025-02214-3","DOIUrl":"https://doi.org/10.1038/s43247-025-02214-3","url":null,"abstract":"Wildfire particulate matter from Canadian forest fires significantly impacted the air quality in the northeastern United States during the summer of 2023. Here, we used real-time and time-integrated instrumentation to characterize the physicochemical properties and radiative effects of wildfire particulate matter reaching the metropolitan areas of New Jersey/ New York during this extreme incident. The radiative forcing of -352.4 W/m2 derived here based on the measured optical properties of wildfire particulate matter explains, to some extent, the ground level temperature reduction of about 3 °C observed in New Jersey/ New York City during this incident. Such negative radiative forcing in densely populated megacities may limit natural ventilation, increase the residence time of wildfire particulate matter and background air pollutants, exacerbating public health risks. This study highlights the importance of radiative effects from wildfire particulate matter in densely populated areas and their potential implications for climate, air quality and public health.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"6 1","pages":"304"},"PeriodicalIF":8.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12011623/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143971432","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}

引用次数: 0

Injecting solid particles into the stratosphere could mitigate global warming but currently entails great uncertainties. 向平流层注入固体颗粒可以缓解全球变暖，但目前存在很大的不确定性。

IF 8.1 1区地球科学

Communications Earth & Environment Pub Date : 2025-01-01 Epub Date: 2025-02-21 DOI: 10.1038/s43247-025-02038-1

Sandro Vattioni, Thomas Peter, Rahel Weber, John A Dykema, Beiping Luo, Andrea Stenke, Aryeh Feinberg, Timofei Sukhodolov, Frank N Keutsch, Markus Ammann, Christof Vockenhuber, Max Döbeli, Georgios A Kelesidis, Gabriel Chiodo

{"title":"Injecting solid particles into the stratosphere could mitigate global warming but currently entails great uncertainties.","authors":"Sandro Vattioni, Thomas Peter, Rahel Weber, John A Dykema, Beiping Luo, Andrea Stenke, Aryeh Feinberg, Timofei Sukhodolov, Frank N Keutsch, Markus Ammann, Christof Vockenhuber, Max Döbeli, Georgios A Kelesidis, Gabriel Chiodo","doi":"10.1038/s43247-025-02038-1","DOIUrl":"10.1038/s43247-025-02038-1","url":null,"abstract":"Stratospheric aerosol injection could mitigate harmful effects of global warming, but could have undesirable side effects, such as warming the stratosphere and depleting the ozone layer. We explore the potential benefits of solid alumina and calcite particles as alternatives to sulfate aerosols by using an experimentally informed aerosol-chemistry-climate model. Compared to sulfur dioxide, injection of solids reduces stratospheric warming by up to 70% and diffuse radiation by up to 40%, highlighting their potential benefits. Achieving -1 W m-2 of radiative forcing would likely result in very small ozone changes, but sizable uncertainties remain. These arise from poorly understood heterogeneous chemical and microphysical processes, which, under less likely assumptions, could lead to larger global ozone column changes between -14% and +4%. Our work provides recommendations for improving the understanding of stratospheric aerosol injection using materials other than sulfur dioxide, and underscores the need for kinetic laboratory studies.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"6 1","pages":"132"},"PeriodicalIF":8.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11845316/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143482408","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}

引用次数: 0