Nature Geoscience最新文献

{"title":"Hydromagnesite on Earth and Mars","authors":"Yongjie Lin, Ian M. Power","doi":"10.1038/s41561-026-02052-8","DOIUrl":"10.1038/s41561-026-02052-8","url":null,"abstract":"Humble hydromagnesite is a hydrated carbonate with outsized importance. Yongjie Lin and Ian Power explore its potential for both carbon sequestration and unlocking the secrets of potential past microbial life on Mars.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"19 8","pages":"866-867"},"PeriodicalIF":20.6,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148688035","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}

{"title":"Opinions that matter","authors":"","doi":"10.1038/s41561-026-02073-3","DOIUrl":"10.1038/s41561-026-02073-3","url":null,"abstract":"Opinions grounded in evidence and expertise play an important role in scientific discourse. The most effective opinion pieces do not simply express a viewpoint — they acknowledge limitations, nuance, and diversity of perspectives, and help move the conversations forwards.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"19 8","pages":"861-861"},"PeriodicalIF":20.6,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41561-026-02073-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148687869","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}

{"title":"Accelerating biomass loss from forest disturbances across Europe","authors":"Katja Kowalski, Alba Viana-Soto, Martin Brandt, Philippe Ciais, Wanda De Keersmaecker, Rasmus Fensholt, Thomas A. M. Pugh, Yidi Xu, Cornelius Senf","doi":"10.1038/s41561-026-02032-y","DOIUrl":"10.1038/s41561-026-02032-y","url":null,"abstract":"Forest disturbances are rising globally due to climate change and land-use pressures, weakening the terrestrial carbon sink. However, declines in aboveground biomass from tree cover loss remain poorly quantified, limiting our understanding of the role of disturbances in global carbon dynamics. Here we present a spatially explicit estimate of aboveground biomass losses from natural disturbances and harvest across Europe’s 216 million hectares of forests, using satellite remote sensing. From 1985 to 2023, gross aboveground biomass losses totalled 6.5 ± 0.8 Pg. Of these, 18% were caused by high-severity natural disturbances, whereas stand-replacing harvests accounted for 82%. From 2018 onward, aboveground biomass losses increased by 46% reaching annual values unprecedented in the preceding four decades. This acceleration coincided with high natural disturbance activity in biomass-rich temperate forests. After 2018, the sensitivity of aboveground biomass loss to disturbance area increased substantially, suggesting that even small increases in natural disturbances can result in large losses. As climate-driven natural disturbances intensify, we thus expect sustained aboveground biomass losses across Europe, despite policies to enhance the forest carbon sink until 2030. Satellite observations reveal accelerating aboveground biomass loss across Europe’s forests since 2018, increasingly driven by natural disturbances. These trends weaken the forest carbon sink and challenge climate mitigation efforts through forest policy.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"19 9","pages":"1132-1138"},"PeriodicalIF":20.6,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41561-026-02032-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148693576","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}

{"title":"Arctic cloud condensation nuclei enhanced by iodine, sulfur and organic precursors","authors":"Mao Du, James Brean, Douglas R. Worsnop, Congbo Song, Yangmei Zhang, Vipul Lal Chandani, Deepchandra Srivastava, David C. S. Beddows, W. Joe F. Acton, Darrel Baumgardner, Jo Browse, Anna B. Callaghan, Manjula Canagaratna, Yuqing Dai, Pete M. Edwards, Jingkun Jiang, Thomas M. Jordan, James D. Lee, Roberto Sommariva, Harald Stark, Mark D. Tarn, Loren G. Temple, Gavin H. Tilstone, Mingxi Yang, William J. Bloss, Roy M. Harrison, Manuel Dall’Osto, Zongbo Shi","doi":"10.1038/s41561-026-02062-6","DOIUrl":"10.1038/s41561-026-02062-6","url":null,"abstract":"New particle formation is an important source of Arctic atmospheric particles and cloud condensation nuclei, yet their precursor sources and molecular-level mechanisms remain poorly understood. Here we report comprehensive ship-based observations from 19 May to 26 June 2022 from southeastern to western Greenland and into the Davis Strait’s marginal ice zone to investigate sources and processes controlling atmospheric particles and cloud condensation nuclei. Our observations provide field evidence of frequent nucleation events driven by the multicomponent iodine oxoacid and sulfuric acid mechanism recently identified in laboratory studies. Newly formed particles grew rapidly beyond 20 nm on 8 out of 13 nucleation days, mainly driven by oxygenated organic molecules from aldehyde and monoterpene oxidation. We also report a previously unobserved class of iodine-containing oxygenated organic molecules that contributed to particle growth and enhanced cloud condensation nuclei formation. We show that marginal sea ice zone produces precursors that drive rapid new particle formation and enhance cloud condensation nuclei concentrations by up to 50-fold. Our findings demonstrate that Arctic iodine, sulfur and organic precursors can enhance cloud condensation nuclei abundance through new particle formation, highlighting a potential but unquantified pathway for influencing cloud cover, radiative balance and the hydrological cycle. Frequent Arctic nucleation events arise from coupled iodine and sulfur chemistry, with organics driving rapid growth. Ship-based observations show that this process can increase cloud condensation nuclei by up to 50-fold near marginal sea ice.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"19 9","pages":"1039-1046"},"PeriodicalIF":20.6,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41561-026-02062-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148693464","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}

{"title":"Monitoring Europe’s forests in a changing climate","authors":"Mirco Migliavacca, Alessandro Cescatti","doi":"10.1038/s41561-026-02037-7","DOIUrl":"10.1038/s41561-026-02037-7","url":null,"abstract":"The European Union’s climate goals rely on forests as carbon sinks. Remote sensing data reveal accelerating biomass loss and distinguish the contributions of harvesting and natural disturbances, helping to better inform forest policy and climate actions.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"19 9","pages":"1002-1003"},"PeriodicalIF":20.6,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148904460","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}

{"title":"Molecular evidence for a relict marine community in an Antarctic Dry Valleys subglacial brine-fed system","authors":"Angela Zoumplis, Zoltan Füssy, Drishti Kaul, Nicholas Schulte, Hong Zheng, Robert H. Lampe, Karolina Brylka, Pratap Venepally, Jill A. Mikucki, Diane M. McKnight, Andrew E. Allen","doi":"10.1038/s41561-026-02054-6","DOIUrl":"10.1038/s41561-026-02054-6","url":null,"abstract":"The McMurdo Dry Valleys contain a mosaic of specialized microbial habitats structured by strong physical and chemical gradients. Blood Falls, located at the terminus of the Taylor Glacier, is a red, iron-rich outflow of deep Antarctic subglacial brine with geochemical and isotopic evidence supporting a potential ancient marine origin. Previous studies suggest the brine formed when seawater inundated the Taylor Valley over warm climatic intervals before becoming isolated beneath the advancing glacier. Here, across 167 aquatic, sediment and aeolian samples from the McMurdo Dry Valleys and marine reference sites, we identified a distinct marine micro-eukaryotic assemblage restricted to red-hued ice, mud and sediment at the Taylor Glacier terminus. Marine indicator species were identified across several phylogenetic groups including diatoms, haptophytes, dinoflagellates and ciliates. Metatranscriptomic profiles revealed transcriptionally active phototrophs with enriched pathways for photosynthesis, osmotic stress responses and cellular repair. Haplotype networks showed lineage-specific divergence between Taylor Glacier terminus and McMurdo Sound diatoms, supporting geographic isolation. These findings indicate that the subglacial brine-fed system at the Taylor Glacier terminus retains marine-derived biological signatures long after physical separation from the ocean, linking contemporary Antarctic microbial assemblages to past climatic transitions. Eukaryotic microorganisms within a subglacial brine-fed system in the McMurdo Dry Valleys of Antarctica are largely of marine origin, a legacy of past incursions of seawater into the area, according to RNA sequencing and metatranscriptomic analyses.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"19 9","pages":"1105-1114"},"PeriodicalIF":20.6,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41561-026-02054-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148693466","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}

{"title":"Disconnection of the late Pliocene Agulhas Leakage from Atlantic Meridional Overturning Circulation","authors":"Suning Hou, Alejandra Cartagena-Sierra, Ning Tan, Carolien M. H. van der Weijst, Malte Stockhausen, Fenghao Liu, Melissa A. Berke, Isla S. Castañeda, Aidan Starr, Francien Peterse, Francesca Sangiorgi, Anna S. von der Heydt, Appy Sluijs, Peter K. Bijl","doi":"10.1038/s41561-026-02055-5","DOIUrl":"10.1038/s41561-026-02055-5","url":null,"abstract":"The strength of the Atlantic Meridional Overturning Circulation (AMOC), in terms of streamfunction, is considered to depend partly on salt supply from the Indian Ocean through Agulhas Leakage (AL). In turn, AL is regulated by the position of the Southern Ocean subtropical front, which creates the pathway of the leaking around the African continent. Here, to evaluate the links between the subtropical front, AL and AMOC, we present latitudinal shifts of the subtropical front, and thereby potential AL changes, using dinoflagellate cysts and biomarkers in sediment cores from the Agulhas Plateau covering the late Pliocene (3,600–2,580 thousand years ago (ka)). We subsequently compare our frontal migration and AL reconstruction with ocean surface and bottom records along the AMOC pathway, and climate model simulations, to evaluate the influence of the AL on the AMOC. We find that the northward migration of the subtropical front gradually reduced the volume and salt supply of AL from 3,600 ka to 3,300 ka, whereas the AMOC intensified. We conclude that the causal link between the AL and AMOC was disconnected during the late Pliocene, challenging the presumed role of the AL in modulating the AMOC. Northward movement of the Southern Ocean subtropical front diminished salt transport by Agulhas Leakage in the late Pliocene, although this had no apparent influence on the strength of the Atlantic Meridional Overturning Circulation, according to proxy records from marine sediment cores.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"19 10","pages":"1158-1166"},"PeriodicalIF":20.6,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41561-026-02055-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148693467","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}

{"title":"Himalayan rivers reflect rainfall patterns, not river piracy","authors":"Joel S. Leonard, Kelin X. Whipple","doi":"10.1038/s41561-026-02059-1","DOIUrl":"10.1038/s41561-026-02059-1","url":null,"abstract":"","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"19 9","pages":"1011-1013"},"PeriodicalIF":20.6,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148693588","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}

{"title":"Reply to: Himalaya rivers reflect rainfall patterns, not river piracy","authors":"Xu Han, Adam G. G. Smith, Jin-Gen Dai, Matthew Fox","doi":"10.1038/s41561-026-02061-7","DOIUrl":"10.1038/s41561-026-02061-7","url":null,"abstract":"","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"19 9","pages":"1014-1016"},"PeriodicalIF":20.6,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148693587","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}

{"title":"The dominant role of temperature in seasonal ozone sensitivity changes in China","authors":"Wenjie Wang, Hang Su, Xin Huang, Chuan Zeng, David D. Parrish, Yuanhang Zhang, Aijun Ding, Yafang Cheng","doi":"10.1038/s41561-026-02036-8","DOIUrl":"10.1038/s41561-026-02036-8","url":null,"abstract":"In recent years, surface ozone pollution in China has been extending from the warm to the cold seasons. The effectiveness of emission control for ozone pollution mitigation depends on the sensitivity of ozone to its precursors. Observations reveal a clear seasonal contrast in ozone precursor sensitivity across cities in China. However, the underlying drivers of different seasonal ozone precursor sensitivity remain unclear, posing a major challenge for developing effective seasonal control strategies. Here we use comprehensive measurements and model simulations to demonstrate that temperature changes have a critical role in shaping this seasonal variation in ozone sensitivity, which matters more than the changes in anthropogenic emissions and actinic flux. From winter to summer, the temperature effect is further intensified by concurrent changes in water vapour and actinic flux, enhancing radical primary production and shifting ozone sensitivity towards a nitrogen oxide-limited regime through a synergistic mechanism. The temperature-driven synergistic mechanism indicates a volatile organic compounds-limited regime during cold seasons, in which sustained nitrogen oxide emission reductions can substantially increase ozone. To avoid prolonging the ozone pollution season, emissions of volatile organic compounds would need to be reduced at approximately twice the rate currently implemented. These findings suggest that the temperature-driven synergistic effect must be fully accounted for when designing long-term ozone pollution mitigation strategies. Ozone regime analyses suggest that temperature outweighs anthropogenic emissions and actinic flux in controlling seasonal variations in ozone sensitivity over China.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"19 8","pages":"899-905"},"PeriodicalIF":20.6,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148693593","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}