Communications Earth & Environment最新文献_第3页

Retreaded tires are an overlooked source of microplastics with distinct additive leaching and ecotoxicity. 翻新轮胎是一个被忽视的微塑料来源，具有明显的添加剂浸出和生态毒性。

IF 9.3 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2026-04-28 DOI: 10.1038/s43247-026-03566-0

Hao Liu, Tianchi Cao, Yan Lin, Guoliang Shi, Kaiwei Huang, Zhi Cao, Tong Zhang, Thilo Hofmann, Wei Chen

{"title":"Retreaded tires are an overlooked source of microplastics with distinct additive leaching and ecotoxicity.","authors":"Hao Liu, Tianchi Cao, Yan Lin, Guoliang Shi, Kaiwei Huang, Zhi Cao, Tong Zhang, Thilo Hofmann, Wei Chen","doi":"10.1038/s43247-026-03566-0","DOIUrl":"10.1038/s43247-026-03566-0","url":null,"abstract":"Retreaded tires constitute a substantial segment of the commercial tire market and are an important source of tire wear particles (TWPs), yet the environmental risks of this major microplastic category remain uninvestigated. Here, we show that although the total additive mass is generally lower in TWPs from retreaded tires, these particles exhibit a markedly greater additive leaching potential, particularly for p-phenylenediamines (PPDs). Notably, the highly water-soluble additive N-isopropyl-N'-phenyl-p-phenylenediamine (IPPD), present at high concentrations in some retreaded-tire TWPs, is especially leachable. Correspondingly, leachates from retreaded-tire TWPs cause greater growth inhibition in Vibrio fischeri and Chlorella vulgaris than those from new or used tires. Furthermore, our numerical model projections under the Shared Socioeconomic Pathway 2 (SSP2) scenario show that global emissions of retreaded-tire TWPs could increase several hundred-fold by 2060. The substantial and growing risks identified in our study underscore the urgent need for broader investigations into the environmental impacts of these particles.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"7 1","pages":"567"},"PeriodicalIF":9.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13327939/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148390190","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

Gatekeeper wetlands govern nutrient pathways in a continental basin. 守门人湿地控制着大陆盆地的营养途径。

IF 9.3 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2026-04-21 DOI: 10.1038/s43247-026-03535-7

Michael A Dallosch, Irena F Creed

{"title":"Gatekeeper wetlands govern nutrient pathways in a continental basin.","authors":"Michael A Dallosch, Irena F Creed","doi":"10.1038/s43247-026-03535-7","DOIUrl":"10.1038/s43247-026-03535-7","url":null,"abstract":"Headwater non-floodplain wetlands are often overlooked in nutrient-management strategies despite their potential to regulate downstream water quality. Here we test whether headwater non-floodplain wetlands act as nutrient gatekeepers in the Lake Winnipeg Watershed. We define wetlands as seasonally-to-persistently inundated surface-water areas mapped from satellite imagery, and combine multi-decadal observations of wetland inundation and wetland-stream connectivity (1984-2020) with observed annual total nitrogen and total phosphorus loads (1994-2020) and random forest models. Nutrient export is lowest when headwater non-floodplain wetlands remain hydrologically disconnected and increases during episodic reconnection, indicating a threshold-like shift from nutrient storage to export. The ratio of disconnected non-floodplain wetland area is the strongest negative predictor of nutrient delivery, whereas mid/high-order reaches are weaker and less consistent. These results identify intermittently connected headwater non-floodplain wetlands as basin-scale regulators of nutrient pathways and highlight protecting them as a scalable strategy to reduce eutrophication risk in climate-sensitive watersheds.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"7 1","pages":"534"},"PeriodicalIF":9.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13283848/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148307251","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

Diatom lipids open window to past ocean temperatures in the polar regions. 硅藻脂打开了了解极地地区过去海洋温度的窗口。

IF 8.9 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2026-01-09 DOI: 10.1038/s43247-025-03177-1

Simon T Belt, Lukas Smik, Denizcan Köseoğlu, Claire S Allen, Katrine Husum, Jochen Knies

引用次数: 0

Ichnofossils in volcanic glass from palaeoproterozoic hydrothermal vents were burrowed by microorganisms probably seeking phosphate. 古元古代热液喷口火山玻璃中的鱼化石被微生物挖洞，可能是为了寻找磷酸盐。

IF 9.3 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2026-03-09 DOI: 10.1038/s43247-026-03359-5

Dominic Papineau

{"title":"Ichnofossils in volcanic glass from palaeoproterozoic hydrothermal vents were burrowed by microorganisms probably seeking phosphate.","authors":"Dominic Papineau","doi":"10.1038/s43247-026-03359-5","DOIUrl":"10.1038/s43247-026-03359-5","url":null,"abstract":"Ichnofossils in basaltic glass are putative microscopic trace fossils occurring on modern seafloor and throughout Earth history. While their biological origin remains debated, it is unknown why microorganisms thrive in volcanic glass. Here we show ichnofossils associated with biosignatures from sedimentary interbeds of pillow basalt in the ~ 1870 million years old Flaherty Formation, Belcher Group, Canada. These rocks are associated with metre-size, pinnacle-shaped structures of silicified basalt, pahoehoe basalt with paleo-caliche, and isolated pods of gossan indicating shallow marine hydrothermal venting. Trails of spheroidal ichnofossils composed of titanite and organic matter surround abundant nanoscopic-size apatite and lepidocrocite, suggesting they caused rock dissolution to obtain phosphate. Stable isotopes provide complementary biosignatures for possible chemolithotrophy. While there is evidence for abiotic carbon-based reactions, the biological origin of spheroidal ichnofossils is supported by 13C-depleted organic matter and calcite, suggesting they were burrowed by microorganisms likely seeking phosphate in volcanic glass near hydrothermal vents.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"7 1","pages":"361"},"PeriodicalIF":9.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13102711/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147764811","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

Early Holocene vigorous Black Sea outflow and the onset of sluggish Aegean deep-water convection. 全新世早期黑海外流剧烈和爱琴海深水对流缓慢的开始。

IF 9.3 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2026-06-20 DOI: 10.1038/s43247-026-03730-6

Dimitris Evangelinos, Sara Campderrós, Sergio Trias-Navarro, Cristina Garcia Briña, Eduardo Paredes Paredes, Leopoldo D Pena, Jaime Frigola, Thomas Hasiotis, Grigoris Rousakis, Dimitris Sakellariou, Isabel Cacho

{"title":"Early Holocene vigorous Black Sea outflow and the onset of sluggish Aegean deep-water convection.","authors":"Dimitris Evangelinos, Sara Campderrós, Sergio Trias-Navarro, Cristina Garcia Briña, Eduardo Paredes Paredes, Leopoldo D Pena, Jaime Frigola, Thomas Hasiotis, Grigoris Rousakis, Dimitris Sakellariou, Isabel Cacho","doi":"10.1038/s43247-026-03730-6","DOIUrl":"10.1038/s43247-026-03730-6","url":null,"abstract":"The Eastern Mediterranean Sea underwent profound hydrographic changes from the late glacial to the Early Holocene, culminating in deep-water stagnation and the deposition of the most recent organic-rich sediment layer (sapropel S1). While this event has traditionally been attributed to riverine discharge from North Africa and enhanced precipitation over the northern Mediterranean borderlands, the role of Black Sea outflow remains overlooked. Here, we present high-resolution multi-proxy records from a central Aegean sediment core spanning the past 42,500 years. Combining grain size, X-ray fluorescence, radiogenic and stable isotope records, we show that a shift in sedimentation ~ 11,000 years ago marked the onset of silt-rich detrital input predominantly sourced from the Dardanelles-Marmara region, accompanied by surface freshening and an enhanced influx of isotopically light dissolved inorganic carbon. We propose that vigorous Black Sea outflow enhanced stratification and suppressed Aegean deep-water convection, playing a more critical role than previously recognised in sapropel S1 formation.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"7 1","pages":"596"},"PeriodicalIF":9.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13375557/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148577423","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

Oxidative uptake of Ce by oceanic ferromanganese crusts and implications for paleoredox estimates using Ce isotopes. 海洋锰铁结壳对Ce的氧化吸收及其对Ce同位素古氧化还原估计的意义。

IF 9.3 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2026-01-20 DOI: 10.1038/s43247-026-03196-6

Alain Manceau, Jianlin Liao, Yan Li, Andrea Giacomelli, Marius Retegan, Andrea Koschinsky, Stephan N Steinmann, Olivier Mathon

{"title":"Oxidative uptake of Ce by oceanic ferromanganese crusts and implications for paleoredox estimates using Ce isotopes.","authors":"Alain Manceau, Jianlin Liao, Yan Li, Andrea Giacomelli, Marius Retegan, Andrea Koschinsky, Stephan N Steinmann, Olivier Mathon","doi":"10.1038/s43247-026-03196-6","DOIUrl":"10.1038/s43247-026-03196-6","url":null,"abstract":"The oxidative enrichment and isotopic fractionation of cerium (Ce) in contact with vernadite (δ-MnO2) serve as a proxy for past redox conditions in both terrestrial and marine environments. However, the molecular processes that govern the scavenging of Ce from the dissolved 3+ to the insoluble 4+ oxidation states remain obscure. Adsorption experiments on synthetic δ-MnO2 suggest that aqueous Ce(III) precipitates as ceric hydroxide (Ce(OH)4), an unknown mineral. Here, the atomic-scale structure of Ce in natural vernadite from ferromanganese crusts collected across the Pacific, Atlantic, and Indian Oceans was examined using advanced high-energy-resolution extended X-ray absorption fine structure spectroscopy. The findings provide direct evidence for the uptake of Ce as mononuclear Ce(IV) complexes at the layer-edge sites (DES complex) and Mn(IV) vacancy sites of vernadite. Density functional theory-based Gibbs free-energy calculations indicate that hydrolysis of the DES complex promotes the oxidation of Ce(III) to Ce(IV). Quantum mechanical calculations predict that the equilibrium 136Ce/140Ce isotope fractionation factor between Ce(III) dissolved in seawater and the Ce(IV) complexes can reach 1.2-1.3 ‰ at 25 °C, indicating that the 136Ce/140Ce ratio has high potential as a new paleoredox proxy.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"7 1","pages":"172"},"PeriodicalIF":9.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12909127/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146218781","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

Enhanced organic carbon burial in rewetted wetlands precedes long-term stabilization. 再湿润湿地中有机碳埋藏的增强先于长期稳定。

IF 9.3 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2026-03-27 DOI: 10.1038/s43247-026-03416-z

Purbasha Mistry, Irena F Creed, Charles G Trick, David A Lobb

{"title":"Enhanced organic carbon burial in rewetted wetlands precedes long-term stabilization.","authors":"Purbasha Mistry, Irena F Creed, Charles G Trick, David A Lobb","doi":"10.1038/s43247-026-03416-z","DOIUrl":"10.1038/s43247-026-03416-z","url":null,"abstract":"Rewetting drained wetlands restores long-term carbon storage by reviving organic carbon burial in sediments and rebuilding carbon stocks, but the decades-long recovery pathway is uncertain. Sediment cores were dated using naturally occurring radioactive lead-210, verified with cesium-137 from past nuclear testing, to reconstruct organic carbon burial rates before drainage and for 4-40 years after rewetting across two restoration chronosequences in dry and wet climate zones; undisturbed wetlands provided benchmarks. Burial rates in undisturbed wetlands (median: 0.60 Mg C ha-1 yr-1) were comparable to pre-drainage rates in rewetted wetlands (median: 0.53), suggesting pre-drainage conditions can guide site-specific recovery targets. After ditch plugging, burial rates increased rapidly (net change: 0.28-1.01 Mg C ha-1 yr-1 within 14 years) but then declined and converged on the baseline by about 40 years. Meanwhile, total organic carbon stored in sediments rose steadily, reaching 24.6 Mg C ha-1 after four decades.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"7 1","pages":"430"},"PeriodicalIF":9.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13186699/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147986635","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

Physical understanding of the extreme global temperature jump in 2023. 对2023年全球气温急剧上升的物理理解。

IF 9.3 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2026-03-19 DOI: 10.1038/s43247-026-03382-6

J Mex, C Cassou, A Jézéquel, S Bony, C Deser

{"title":"Physical understanding of the extreme global temperature jump in 2023.","authors":"J Mex, C Cassou, A Jézéquel, S Bony, C Deser","doi":"10.1038/s43247-026-03382-6","DOIUrl":"10.1038/s43247-026-03382-6","url":null,"abstract":"Global surface air temperature reached unprecedented heights in early boreal fall 2023, surpassing the previous record for year-to-year temperature increase by a significant margin. We attribute most of this temperature jump to the onset and maturing stages of the 2023 El Niño, with some contributions from the North Atlantic. Using a process-based analysis from multiple observational datasets, we show that the uniqueness of the 2023 event arose from the La Niña-like ocean-atmosphere state on which it developed. This background favoured (1) a steep year-to-year increase of Sea Surface Temperature, particularly in mean atmospheric subsidence regions, reducing low-cloud cover and giving rise to a record-breaking change in the radiative budget; (2) anomalously sustained precipitation over high sea surface temperatures in the Western Pacific, fuelling unusual diabatic heating compared to canonical El Nino events. This altogether led to an exceptionally early increase in tropical tropospheric temperature in boreal fall, ultimately influencing the jump in temperature at the global scale.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"7 1","pages":"406"},"PeriodicalIF":9.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13167450/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147940461","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

River temperature response to atmospheric heatwaves is modulated by discharge and meltwater. 河流温度对大气热浪的响应受流量和融水的调节。

IF 9.3 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2026-02-19 DOI: 10.1038/s43247-026-03269-6

Amber van Hamel, Joren Janzing, Manuela Irene Brunner

引用次数: 0

The Martian mid-latitude subsurface ice is the remnant of a past ice sheet. 火星中纬度地区的地下冰是过去冰盖的残余。

IF 9.3 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2026-03-21 DOI: 10.1038/s43247-026-03418-x

E Vos, F Forget, L Lange, J Naar, J B Clement, E Millour

{"title":"The Martian mid-latitude subsurface ice is the remnant of a past ice sheet.","authors":"E Vos, F Forget, L Lange, J Naar, J B Clement, E Millour","doi":"10.1038/s43247-026-03418-x","DOIUrl":"10.1038/s43247-026-03418-x","url":null,"abstract":"On Mars, a relatively pure water ice layer lies beneath several centimeters of dry-soil at midlatitudes. Its widespread presence poleward of 60° latitude was detected by remote neutron spectroscopy. Recent observations of exposed ice indicate that the near-surface ice layer extends to 35° latitude and exhibits pronounced spatial structure. However, previous models did not capture the observed spatial structure of the midlatitude ice layer. Here, using improved calculations using the Mars Planetary Climate Model, we show that mid-latitude buried ice could be the remnant of an ice layer deposited on the surface when the obliquity was higher than today. Assuming that the ice subsequently sublimated and became buried beneath a sublimation lag, we estimate that surface ice emplaced 630 thousand years (4.18 million years) ago at 35° obliquity (40°), at latitudes of 40-55° North, would today reside at depths of 25-150 (41-255) centimeters, depending on regolith and ice properties. For ice emplaced 630 thousand years ago, the modeled burial depths align with observations and capture the observed longitudinal depth variations, in contrast to ice emplaced 4.18 million years ago. We therefore infer that the mid-latitude subsurface ice is younger than 4 million years.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"7 1","pages":"412"},"PeriodicalIF":9.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13167468/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147940597","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