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| Open AccessCalcite carbonate sinks low-density plastic debris in open oceans
Low-density microplastics with a size range of 10−200 µm may gain sufficient ballast via microbially induced calcium carbonate precipitation and sink independently to the ocean floor due to small drag, explaining their enrichment in oceanic sediment.
- Xiang-Fei Sun
- , Yanxu Zhang
- & Eddy Y. Zeng
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Article
| Open AccessAtmospheric emissions of hexachlorobutadiene in fine particulate matter from industrial sources
Recognition on sources of hexachlorobutadiene is needed for their global control. This study clarifies hexachlorobutadiene emission factors from 121 industrial plants assigned to 12 industries and establishes their global emission inventory.
- Chenyan Zhao
- , Lili Yang
- & Guibin Jiang
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| Open AccessCircumventing bottlenecks in H2O2 photosynthesis over carbon nitride with iodine redox chemistry and electric field effects
H2O2 photosynthesis using g-C3N4 is considered an alternative to anthraquinone processes. Inspired by the optical instability of potassium iodide, the I− /I3− internal redox mediator and external electric field are integrated into the g-C3N4, achieving satisfactory H2O2 production.
- Chang-Wei Bai
- , Lian-Lian Liu
- & Han-Qing Yu
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Article
| Open AccessCross-shore parallel tidal channel systems formed by alongshore currents
Cross-shore channels can counterintuitively form at coasts dominated by alongshore currents. Sharp changes in bed elevation around the mean sea level lead to nearly 90-degree intersection angles between the channel and the shoreline.
- Zeng Zhou
- , Yizhang Wei
- & Giovanni Coco
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Article
| Open AccessComparing costs and climate impacts of various electric vehicle charging systems across the United States
Results show meaningful variations in electric vehicle costs and emissions benefits across the United States, differing by vehicle category and charging systems: Direct Current Fast Charging, Battery Swapping, and Dynamic Wireless Power Transfer.
- Noah Horesh
- , David A. Trinko
- & Jason C. Quinn
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Article
| Open AccessHydrogen peroxide serves as pivotal fountainhead for aerosol aqueous sulfate formation from a global perspective
The oxidation of sulfur dioxide to sulfate by hydrogen peroxide in aerosol water significantly impacts global continental regions. Abating oxidants can facilitate the benefit of sulfur dioxide reduction and positive feedback in sulfate mitigation.
- Jie Gao
- , Haoqi Wang
- & Guoliang Shi
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Article
| Open AccessPotential decoupling of CO2 and Hg uptake process by global vegetation in the 21st century
The uptake of gaseous elementary mercury by terrestrial vegetation in 2100 is likely to decrease by more than half compared to present-day conditions. This decrease is caused by the reduced stomatal conductance associated with increasing CO2 levels.
- Tengfei Yuan
- , Shaojian Huang
- & Yanxu Zhang
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| Open AccessWidespread 2013-2020 decreases and reduction challenges of organic aerosol in China
Clean air actions affect air quality greatly. Here, the authors report widespread decreases in organic aerosol (OA) in China from 2013 to 2020 with primary OA decreasing more than secondary OA. However, further reductions are challenging.
- Qi Chen
- , Ruqian Miao
- & Tong Zhu
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| Open AccessRecent wetting trend over Taklamakan and Gobi Desert dominated by internal variability
The Taklamakan and Gobi Desert region has witnessed a significant rise in summer precipitation in recent decades. This study shows that atmospheric internal variability, rather than external forcings, is the main driver shaping this wetting trend.
- Wenhao Dong
- , Yi Ming
- & Zhaoyi Shen
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Article
| Open AccessIon pair sites for efficient electrochemical extraction of uranium in real nuclear wastewater
Electrochemical uranium extraction from real nuclear wastewater is appealing but challenging. Herein, Lin et al develop a strategy of ion pair site for enhanced binding of dominant uranium fluoride species in real wastewater, achieving efficient recycling of uranium as powder product.
- Tao Lin
- , Tao Chen
- & Rong He
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Article
| Open AccessSustained bacterial N2O reduction at acidic pH
Microbial reduction of nitrous oxide to dinitrogen is considered negligible under acidic conditions. However, Guang He et al. show that a co-culture of two bacterial species derived from acidic tropical forest soil can reduce nitrous oxide at pH 4.5.
- Guang He
- , Gao Chen
- & Frank E. Löffler
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Article
| Open AccessStratospheric influence on surface ozone pollution in China
The authors analyze the frequency, duration and intensity of stratospheric intrusions to the surface in China over 2015-2022 and find that such intrusions enhance surface ozone pollution, especially in spring and autumn, followed by summer.
- Zhixiong Chen
- , Jane Liu
- & Zhou Zang
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Article
| Open AccessAutomatic detection of methane emissions in multispectral satellite imagery using a vision transformer
Accurate monitoring of methane emissions is essential to understand its contribution to global warming. The authors here employ multi-spectral satellite data to create a methane detection tool with global coverage and high temporal and spatial resolution.
- Bertrand Rouet-Leduc
- & Claudia Hulbert
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Article
| Open AccessUrban development pattern’s influence on extreme rainfall occurrences
Cities that experience compact development tend to witness more extreme rainfall over downtown than their rural surroundings, while the anomalies in extreme rainfall frequency diminish for cities with dispersed development patterns.
- Long Yang
- , Yixin Yang
- & Dev Niyogi
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| Open AccessA unifying modelling of multiple land degradation pathways in Europe
This study presents an unprecedented analysis of agricultural land multi-degradation in 40 European countries, using twelve dataset-based processes that were modelled as land degradation convergence and combination pathways across the continent.
- Remus Prăvălie
- , Pasquale Borrelli
- & Marius-Victor Birsan
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| Open AccessEfficient recovery and recycling/upcycling of precious metals using hydrazide-functionalized star-shaped polymers
Despite the use of amine-functionalized polymers as metal adsorbents, they are generally ineffective at recovering precious metals. Here the authors prepare a star-shaped, hydrazide-functionalized polymer as a recoverable standalone adsorbent with high precious metal adsorption capability/selectivity and practical feasibility.
- Seung Su Shin
- , Youngkyun Jung
- & Jung-Hyun Lee
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Article
| Open AccessTracing fossil-based plastics, chemicals and fertilizers production in China
Plastics, chemical production, and fertilizers commonly rely on fossil fuels. Here the authors examine these uses in China and find that in 2017, 5%, 15%, and 7% of China’s total coal, crude oil, and natural gas were used as feedstocks in the chemical industry.
- Meng Jiang
- , Yuheng Cao
- & Bing Zhu
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| Open AccessEffects of emissions caps on the costs and feasibility of low-carbon hydrogen in the European ammonia industry
Decarbonizing the European ammonia industry: Less stringent emissions caps for electrolytic hydrogen production can significantly reduce costs and land use while still achieving more than 90% reduction in emissions relative to fossil-based hydrogen.
- Stefano Mingolla
- , Paolo Gabrielli
- & Zhongming Lu
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Article
| Open AccessThe environmental sustainability of digital content consumption
The average Internet user spends over 40% of their waking hours online, yet the environmental footprint remains poorly understood. This study suggests that digital content consumption could exacerbate the pressure on the finite Earth’s carrying capacity.
- Robert Istrate
- , Victor Tulus
- & Gonzalo Guillén-Gosálbez
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| Open AccessTiming the evolution of phosphorus-cycling enzymes through geological time using phylogenomics
Phosphorus is an essential nutrient which may have influenced Earth’s early biosphere. This study interrogates genomic records, finding potentially phosphate depleted conditions toward the end of the Archean when enzymes for scavenging reduced phosphorus compounds spread throughout the tree of life.
- Joanne S. Boden
- , Juntao Zhong
- & Eva E. Stüeken
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Article
| Open AccessBiocomposite thermoplastic polyurethanes containing evolved bacterial spores as living fillers to facilitate polymer disintegration
Plastic pollution severely threatens the resilience of nature. Here, the authors utilize the spore-forming, polymer-degrading bacteria, Bacillus subtilis, as a living filler to develop biocomposite thermoplastic polyurethane with improved mechanical properties and biodegradation.
- Han Sol Kim
- , Myung Hyun Noh
- & Jonathan K. Pokorski
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| Open AccessImproved biomass burning emissions from 1750 to 2010 using ice core records and inverse modeling
Two new gridded, model-ready historical biomass burning emission datasets (BB4CMIPpost and LPJ-LMfirepost) are developed by inverse modeling that leveraged 31 ice core records, existing emissions as a priori, and chemical transport model simulations.
- Bingqing Zhang
- , Nathan J. Chellman
- & Pengfei Liu
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| Open AccessA global meta-analysis on the drivers of salt marsh planting success and implications for ecosystem services
Salt marsh planting strategies aim to reduce coastal degradation. Here, the authors conduct a global meta-analysis showing that planting enhances coastal wetland ecosystem services although not to the level of natural wetlands.
- Zezheng Liu
- , Sergio Fagherazzi
- & Baoshan Cui
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| Open AccessLand conversion to agriculture induces taxonomic homogenization of soil microbial communities globally
Agricultural land-use change affects belowground biodiversity. Here, the authors compare soil microbial communities from natural ecosystems and agricultural systems, finding that agricultural conversion leads to taxonomic and functional homogenisation.
- Ziheng Peng
- , Xun Qian
- & Shuo Jiao
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Article
| Open AccessEfficient tandem electroreduction of nitrate into ammonia through coupling Cu single atoms with adjacent Co3O4
An optimal catalyst for nitrate electroreduction should satisfy the simultaneously optimized adsorption of intermediates. Here, the authors report a tandem electrocatalyst by combining Cu single atoms with Co3O4 nanosheets, enhancing the binding with NO2−, thus promoting nitrate electroreduction to NH3.
- Yan Liu
- , Jie Wei
- & Jie Zeng
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Article
| Open AccessWarming drives dissolved organic carbon export from pristine alpine soils
The temperature-sensitivity of soil dissolved organic carbon (DOC) export is widely debated but limited by the duration of observations. New data from environmental archives supports a pronounced sensitivity between soil DOC leaching and warming.
- Andrew R. Pearson
- , Bethany R. S. Fox
- & Adam Hartland
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Article
| Open AccessSustained increase in suspended sediments near global river deltas over the past two decades
River sediments play a critical role in sustaining coastal ecosystems. This study examines patterns of coastal suspended sediment concentration (SSC) for 349 deltas worldwide via satellite images and investigated the possible driving factors.
- Xuejiao Hou
- , Danghan Xie
- & Jaap H. Nienhuis
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Article
| Open AccessContinuous and low-carbon production of biomass flash graphene
It is challenging to produce biomass FG continuously due to the lack of an integrated device. Here, we create an integrated automatic system with energy requirement-oriented allocation to achieve continuous biomass FG production with a much lower carbon footprint.
- Xiangdong Zhu
- , Litao Lin
- & Yong-Guan Zhu
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Article
| Open AccessGlobal energy use and carbon emissions from irrigated agriculture
The global energy and carbon footprint of irrigation remain uncertain. Here, the authors show that energy consumption and carbon emissions from irrigation are primarily driven by groundwater pumping and are significant in major agricultural nations.”
- Jingxiu Qin
- , Weili Duan
- & Lorenzo Rosa
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Article
| Open AccessMeta-analysis indicates better climate adaptation and mitigation performance of hybrid engineering-natural coastal defence measures
This meta-analysis compares the performance of hard, hybrid, soft and natural coastal defence measures. Results show that all measures have a positive economic return over 20 years yet hybrid measures perform best for climate adaptation and mitigation.
- Lam Thi Mai Huynh
- , Jie Su
- & Alexandros Gasparatos
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Article
| Open AccessThe effect of a political crisis on performance of community forests and protected areas in Madagascar
The effectiveness of community-based land protection compared to traditional top-down protection is debated. Here, the authors show that both community-managed forests and traditional protected areas in Madagascar experienced deforestation during a political crisis but the former were especially vulnerable in the post-crisis period.
- Rachel A. Neugarten
- , Ranaivo A. Rasolofoson
- & Amanda D. Rodewald
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Article
| Open AccessDefect-induced triple synergistic modulation in copper for superior electrochemical ammonia production across broad nitrate concentrations
Converting nitrate to ammonia in wastewater with a wide range of nitrate concentrations remains a challenging task. Here the authors report defect-rich Cu nanowire electrocatalyst which can achieve 50 to 1100 mA cm−2 and over 90% Faradaic efficiency using 1–100 mM nitrate wastewater.
- Bocheng Zhang
- , Zechuan Dai
- & Genqiang Zhang
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Article
| Open AccessGrave-to-cradle photothermal upcycling of waste polyesters over spent LiCoO2
The increasing production of lithium-ion batteries and plastics presents significant challenges to resource sustainability and ecosystem integrity. This study highlights the utilization of spent lithium cobalt oxide cathodes as photothermal catalysts to transform various waste polyesters into valuable monomers.
- Xiangxi Lou
- , Penglei Yan
- & Jinxing Chen
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Article
| Open AccessSubstantially reducing global PM2.5-related deaths under SDG3.9 requires better air pollution control and healthcare
Reducing PM2.5 air pollution from biomass burning, transport, energy, and manufacturing, in combination with improvements in healthcare, especially in emerging economies like India and China, will be crucial to meeting SDG3.9
- Huanbi Yue
- , Chunyang He
- & Brett A. Bryan
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Article
| Open AccessNitrogen and phosphorus trends in lake sediments of China may diverge
Nutrient levels in Chinese lakes have rapidly increased since 1950 but future trends in lacustrine nitrogen and phosphorus across China will differentiate, according to projections up to 2100.
- Panpan Ji
- , Jianhui Chen
- & Fahu Chen
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Article
| Open AccessAccounting for albedo change to identify climate-positive tree cover restoration
Restoring tree cover is a prominent climate solution but can cause global warming due to changes in albedo. This paper maps albedo and carbon changes from restoring tree cover to highlight where the greatest net climate benefits can be achieved.
- Natalia Hasler
- , Christopher A. Williams
- & Susan C. Cook-Patton
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Article
| Open AccessTreeline displacement may affect lake dissolved organic matter processing at high latitudes and altitudes
Shifts in the treeline may induce changes in organic matter composition of lakes at high altitude and latitude. Here, the authors experimentally unravel effects of soil-derived DOM for lake carbon biogeochemistry and bacterial carbon use efficiency.
- Núria Catalán
- , Carina Rofner
- & Hannes Peter
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Article
| Open AccessField-scale crop water consumption estimates reveal potential water savings in California agriculture
This study introduces a novel framework for generating high-resolution, in-situ estimates of agricultural evapotranspiration (ET) using satellite-based ET data combined with machine learning. This approach is leveraged to assess the water-saving potential of various management strategies and in calculating irrigation efficiency across California’s Central Valley.
- Anna Boser
- , Kelly Caylor
- & Tamma Carleton
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Article
| Open AccessAtmospheric isoprene measurements reveal larger-than-expected Southern Ocean emissions
High atmospheric concentrations of isoprene have been observed in the Southern Ocean. The authors investigate their potential marine sources and show how these emissions impact the modelling of atmospheric processes and composition in remote environments.
- Valerio Ferracci
- , James Weber
- & Neil. R. P. Harris
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| Open AccessThe potential of urban irrigation for counteracting carbon-climate feedback
This study shows that urban irrigation is capable of achieving the environmental co-benefit of heat mitigation and carbon neutrality and has the potential to counteract the climate–carbon feedback loop in the U.S. urban environment.
- Peiyuan Li
- , Zhi-Hua Wang
- & Chenghao Wang
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| Open AccessMechanistic insight into the competition between interfacial and bulk reactions in microdroplets through N2O5 ammonolysis and hydrolysis
The authors report a computational strategy to simulate the hydrolysis and ammonolysis of N2O5 in aerosols using high-level quantum chemical methods. The computational results reveal a complete picture of the reactive uptake of N2O5 by atmospheric aerosols with or without NH3.
- Ye-Guang Fang
- , Bo Tang
- & Wei-Hai Fang
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Article
| Open AccessTrade-offs in land-based carbon removal measures under 1.5 °C and 2 °C futures
This study demonstrates how land-based carbon removals and the market-mediated responses are sensitive to mitigation policy strength and scope, illustrating that, despite trade-offs, both forestation and BECCS are integral to cost-effective 2 °C pathways.
- Xin Zhao
- , Bryan K. Mignone
- & Haewon C. McJeon
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| Open AccessDouble charge flips of polyamide membrane by ionic liquid-decoupled bulk and interfacial diffusion for on-demand nanofiltration
Currently polyamide membranes fabricated by interfacial polymerization are limited by inherently negative charge as well as narrow charge tailoring window restricting the application of these membranes. Here, the authors report a facile ionic liquid-decoupled bulk/interfacial diffusion strategy to fabricate polyamide membranes which can transform on-demand from inherently negative to highly positive and near-neutral charge.
- Bian-Bian Guo
- , Chang Liu
- & Zhi-Kang Xu
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Article
| Open AccessAn exposome atlas of serum reveals the risk of chronic diseases in the Chinese population
Current studies have provided limited knowledge on real-world chemical exposures and related risks. Here, the authors show serum exposure characteristics of humans in different regions and age groups, revealing diverse risk relationships with multiple chronic diseases.
- Lei You
- , Jing Kou
- & Guowang Xu
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Article
| Open AccessPopulation exposure to multiple air pollutants and its compound episodes in Europe
European population exposure to most air pollutants has been reduced significantly, however for PM2.5 and O3, single pollutant and compound events remain a threat, particularly in Southern and Eastern Europe
- Zhao-Yue Chen
- , Hervé Petetin
- & Joan Ballester
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Article
| Open AccessCost-effectiveness uncertainty may bias the decision of coal power transitions in China
China’s use of coal is complex to establish a clean and low-carbon transition for the country. With an uncertainty assessment framework, this study displays the risks of missing opportunities in obtaining cumulative positive net benefits and identifying an optimal transition strategy.
- Xizhe Yan
- , Dan Tong
- & Yu Lei
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Article
| Open AccessElectronic structure modulation of iron sites with fluorine coordination enables ultra-effective H2O2 activation
Electronic structure modulation of active sites is critical important in Fenton catalysis. Herein, the authors report that the iron oxyfluoride involving fluorine coordination to iron sites, can effectively activate H2O2 into •OH for water treatment.
- Deyou Yu
- , Licong Xu
- & Jinming Luo
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Article
| Open AccessStable hydrogen evolution reaction at high current densities via designing the Ni single atoms and Ru nanoparticles linked by carbon bridges
Understanding the sustained stability of alkaline hydrogen evolution at high current densities is crucial. Herein, the authors synthesize Ni single atoms, modified with ultra-small Ru nanoparticles with a defective carbon bridging structure, capable of running steadily for 100 h at 3 A cm−2.
- Rui Yao
- , Kaian Sun
- & Jinping Li
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Article
| Open AccessLight-responsive and ultrapermeable two-dimensional metal-organic framework membrane for efficient ionic energy harvesting
With porous structure and photothermal conversion performance, Cu-porphyrin framework membranes exhibit high efficiency in the extraction of electrical energy from salt solutions, opening avenues for renewable energy.
- Jin Wang
- , Zeyuan Song
- & Lei Wang