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Aqueous batteries beating the cold 水电池可以抵御寒冷
IF 27.1 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-11-06 DOI: 10.1038/s41893-025-01684-9
Xinming Nie, Shijian Wang, Hao Liu
Aqueous zinc batteries, with intrinsic safety and low cost, struggle at low temperatures primarily because their water-based electrolytes freeze. Now a dual-salt electrolyte design enables stable battery operation even at −40 °C.
水性锌电池具有固有的安全性和低成本,但在低温环境中挣扎主要是因为其水基电解质会冻结。现在,双盐电解质设计使电池即使在- 40°C下也能稳定运行。
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引用次数: 0
Plastics disposal as a climate decision 塑料处理作为一个气候决定
IF 27.1 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-11-06 DOI: 10.1038/s41893-025-01682-x
Peter I. Macreadie, Tanveer M. Adyel
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引用次数: 0
The iodine-129 paradox in nuclear waste management strategies 核废料管理战略中的碘-129悖论
IF 27.1 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-11-05 DOI: 10.1038/s41893-025-01629-2
Haruko M. Wainwright, Kate Whiteaker, Hansell Gonzalez-Raymat, Miles E. Denham, Ian L. Pegg, Daniel I. Kaplan, Nikolla P. Qafoku, David Wilson, Shelly Wilson, Carol A. Eddy-Dilek
Nuclear energy has an important role in the low-carbon energy transition, but the safety of spent nuclear fuel (SNF) management remains a public concern. Here we investigate the interplay between waste management strategies and their environmental impacts with a particular focus on a highly mobile and persistent radionuclide, iodine-129 (I-129), which is the dominant risk contributor from SNF disposal and at existing groundwater contamination sites. The results show that the current recycling practice releases more than 90% of I-129 in SNF into the present-day biosphere using an isotropic dilution strategy, whereas the direct disposal of SNF in geological repositories is likely to delay and reduce the release by 8 orders of magnitude. In addition, our data synthesis of surface water concentrations near four nuclear facilities shows that the release-dilution strategy results in lower concentrations than regulatory standards, while insufficient waste isolation in the past has resulted in locally high concentrations within one site. Our analysis suggests that it is essential to consider effluents more explicitly as a part of the waste, that as society moves from dilution to isolation of waste, the potential risks of waste isolation to local regions should be carefully evaluated, and that excessive burdens of proof could hinder or discourage waste isolation. Comprehensive waste management strategies—considering not just volume but also mobility, isolation technologies and ultimate fates—are needed for persistent contaminants. This study offers valuable insights for optimizing the management of SNF and other persistent contaminants. Safe disposal of spent nuclear fuel (SNF) is a prerequisite for the development of nuclear power but remains challenging. This study reveals the interplay between SNF management strategies and their environmental impacts with a particular focus on iodine-129, a highly mobile, persistent and dominant risk contributor.
核能在低碳能源转型中发挥着重要作用,但乏核燃料管理的安全性仍然是公众关注的问题。在这里,我们研究了废物管理策略与其环境影响之间的相互作用,特别关注高流动性和持久性放射性核素碘-129 (I-129),它是SNF处置和现有地下水污染地点的主要风险因素。结果表明,采用各向同性稀释策略,目前的循环利用做法将SNF中90%以上的I-129释放到当今生物圈中,而在地质库中直接处置SNF可能会延迟和减少8个数量级的释放。此外,我们对四个核设施附近地表水浓度的数据综合表明,释放-稀释战略导致的浓度低于监管标准,而过去的废物隔离不足导致一个场址内的局部高浓度。我们的分析表明,必须更明确地将废水视为废物的一部分,随着社会从废物稀释转向废物隔离,应仔细评估废物隔离对当地的潜在风险,过度的举证责任可能会阻碍或阻碍废物隔离。持久性污染物需要综合废物管理战略,不仅要考虑体积,还要考虑移动性、隔离技术和最终命运。该研究为优化SNF和其他持久性污染物的管理提供了有价值的见解。乏燃料的安全处理是核能发展的先决条件,但仍然具有挑战性。本研究揭示了SNF管理策略与其环境影响之间的相互作用,特别关注碘-129这一高度流动、持续和主要的风险因素。
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引用次数: 0
Small increases in material stocks to achieve decent living standards globally 小幅增加物质储备,以实现全球体面的生活水平
IF 27.1 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-11-05 DOI: 10.1038/s41893-025-01670-1
Jan Streeck, Johan Andrés Veléz-Henao, Jarmo S. Kikstra, Shonali Pachauri, Jihoon Min, Fridolin Krausmann, Helmut Haberl, Stefan Pauliuk, Tommaso Zaini, Dominik Wiedenhofer
Global inequalities in resource use leave billions below decent living standards (DLS)—a proposal of universal minimum service levels required to meet essential human needs. Although research has examined the energy use and greenhouse gas emission implications of achieving universal DLS, little is known about the necessary expansion of societies’ material stocks in buildings, infrastructure and machinery. Here we estimate that closing global DLS gaps would require an increase of approximately 12% in the existing material stocks of society, if efforts to expand these stocks are devoted exclusively to meet DLS. At current construction rates, this could be accomplished by 2030. However, if historical trends of unequal growth of material stocks driven by demands beyond DLS persist, the material stock requirements for DLS could increase tenfold, risking the achievement of sustainable development and climate change mitigation goals. To achieve DLS for all while limiting environmental pressures, it is essential to prioritize expansion of material stocks for closing DLS gaps and to critically asses stock expansion for demands beyond DLS—especially in affluent regions. Such a strategy could ensure universal DLS at more sustainable resource use levels. Billions still lack decent living standards (DLS), yet it is not known how much growth in material stocks for buildings, infrastructure and machinery will be required to meet these needs. This study estimates that increasing the material stocks by 12% would suffice to achieve DLS for all, achievable by 2030.
全球资源利用的不平等使数十亿人低于体面生活标准(DLS)——满足人类基本需求所需的普遍最低服务水平的建议。虽然已有研究考察了实现普遍DLS对能源使用和温室气体排放的影响,但人们对社会在建筑、基础设施和机械方面的材料储备的必要扩大知之甚少。在这里,我们估计,如果扩大这些库存的努力专门用于满足DLS,那么缩小全球DLS差距将需要增加大约12%的社会现有物质库存。按照目前的建设速度,这可能在2030年完成。但是,如果由DLS以外的需求驱动的材料库存不平等增长的历史趋势持续下去,DLS的材料库存需求可能会增加十倍,从而有可能实现可持续发展和减缓气候变化的目标。为了在限制环境压力的同时实现所有人的DLS,必须优先考虑扩大材料库存以缩小DLS差距,并严格评估库存扩张以满足DLS以外的需求,特别是在富裕地区。这一战略可以确保在更可持续的资源利用水平上普及DLS。数十亿人仍然缺乏体面的生活标准(DLS),但不知道建筑、基础设施和机械的材料库存需要增长多少才能满足这些需求。该研究估计,到2030年,将材料储量增加12%就足以实现所有人的DLS。
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引用次数: 0
Leveraging third-party litigation funding for environmental litigation 利用第三方诉讼资金支持环境诉讼
IF 27.1 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-11-04 DOI: 10.1038/s41893-025-01678-7
Masaki Iwasaki
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引用次数: 0
Powering air travel with jet fuel derived from municipal solid waste 用从城市固体废物中提取的喷气燃料为航空旅行提供动力
IF 27.1 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-11-03 DOI: 10.1038/s41893-025-01644-3
Jingran Zhang, Fang Wang, Zhao Jia Ting, Weiguo Dong, Shaojun Zhang, Ye Wu, Chris P. Nielsen, Ming Zhao, Jiming Hao, Michael B. McElroy
Sustainable aviation fuel (SAF) is a promising decarbonization solution for aviation, but its adoption remains below 1% due to high cost. As municipal solid waste (MSW) continues to grow and sustainable disposal remains challenging, converting MSW into SAF offers an attractive pathway to align the goals of zero-waste cities and carbon-neutral aviation, given its reliable availability, low emissions and low cost. Here we evaluate MSW as feedstock for SAF production via industrial-scale gasification and Fischer–Tropsch synthesis data. The life cycle assessment indicates that MSW-based SAF can reduce greenhouse gas intensity by 80–90% compared with conventional jet fuel, with gasification being the primary technical challenge. Incorporating green hydrogen further enhances mitigation, reducing emissions by up to 50% and enabling a reduction of over 170 kg of CO2 per tonne of processed MSW. Globally, MSW-based SAF production could exceed 50 Mt yr−1 (62.5 billion litres), offering a 16% reduction in aviation greenhouse gas emissions. In Europe, the estimated 5.4 Mt yr−1 SAF capacity from this study exceeds the European Union blending mandate and complies with its restriction to non-food and feed feedstocks. Economic analysis indicates that using SAF to meet Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) targets can lead to substantial cost savings, particularly when subsidies are available. Municipal solid waste (MSW) could power sustainable aviation fuel (SAF), but costs and technical hurdles such as gasification hinder its adoption. A study now shows that MSW can be turned into SAF with 80–90% lower lifecycle emissions while offering a 16% reduction in aviation greenhouse gas emissions.
可持续航空燃料(SAF)是一种很有前途的航空脱碳解决方案,但由于成本高,其采用率仍低于1%。随着城市固体废物(MSW)的持续增长和可持续处理仍然具有挑战性,将城市固体废物转化为SAF提供了一条有吸引力的途径,以实现零废物城市和碳中和航空的目标,因为它具有可靠的可用性、低排放和低成本。在这里,我们通过工业规模的气化和费托合成数据来评估城市生活垃圾作为SAF生产的原料。生命周期评估表明,与传统航空燃料相比,基于生活垃圾的SAF可以减少80-90%的温室气体强度,其中气化是主要的技术挑战。采用绿色氢进一步加强缓解,减少高达50%的排放量,并使每吨处理的城市生活垃圾减少超过170公斤的二氧化碳。在全球范围内,基于msw的SAF产量可超过5000万吨/年(625亿升),可减少16%的航空温室气体排放。在欧洲,本研究估计540万吨/年的SAF产能超过了欧盟的混合要求,并符合其对非食品和饲料原料的限制。经济分析表明,使用SAF来满足国际航空碳抵消和减排计划(CORSIA)的目标可以节省大量成本,特别是在有补贴的情况下。城市固体废物(MSW)可以为可持续航空燃料(SAF)提供动力,但成本和气化等技术障碍阻碍了其采用。现在的一项研究表明,将城市生活垃圾转化为SAF可以降低80-90%的生命周期排放量,同时减少16%的航空温室气体排放。
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引用次数: 0
From trash to jet fuel 从垃圾到飞机燃料
IF 27.1 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-11-03 DOI: 10.1038/s41893-025-01675-w
Candelaria Bergero, Nicoletta Brazzola
Aviation is one of the hardest sectors to decarbonize, and so every clean energy source that can be turned into fuel should be considered — even trash. A study now finds that trash-based fuels may be able to cut aviation emissions by around 16%, while offering cost savings relative to traditional mitigation pathways.
航空业是最难脱碳的行业之一,因此每一种可以转化为燃料的清洁能源都应该被考虑——甚至是垃圾。一项研究发现,基于垃圾的燃料可能能够将航空排放量减少约16%,同时相对于传统的减排途径节省成本。
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引用次数: 0
Doubling of the global freshwater footprint of material production over two decades 二十年来,全球物质生产的淡水足迹翻了一番
IF 27.1 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-10-30 DOI: 10.1038/s41893-025-01661-2
Yao Wang, Fengmei Ma, Heming Wang, Asaf Tzachor, Meng Jiang, Kai Fang, Sai Liang, Bing Zhu, Edgar G. Hertwich, Manfred Lenzen, Heinz Schandl, Stephan Lutter
Producing essential, widely used materials such as steel, cement, paper, plastics and rubber requires substantial freshwater resources, which may exacerbate water scarcity. Despite this, comprehensive research on freshwater embodied in material production remains limited. Here we assess the blue water footprint (WFblue) of 16 metallic and non-metallic material categories across 164 regions, using a multiregional input–output model and the hypothetical extraction method. Our findings indicate that the global WFblue of material production doubled from 25.1 billion m3 in 1995 to 50.7 billion m3 in 2021, raising its share in global blue water consumption from 2.8% to 4.7%. The East, South Asia and Oceania regions saw an alarming 267% surge in WFblue for material production, with China—already facing medium-high water stress—experiencing a dramatic ~400% increase. As material production is expected to grow, we underscore the urgency of a water–materials nexus approach, particularly in water-stressed countries. Many of the materials that our everyday lives rely on come with a hidden freshwater cost during production. The embodied water in materials has surged in material production with the potential to exacerbate regional water scarcity.
生产广泛使用的基本材料,如钢铁、水泥、纸张、塑料和橡胶,需要大量淡水资源,这可能会加剧水资源短缺。尽管如此,对体现在物质生产中的淡水的全面研究仍然有限。本文采用多区域投入产出模型和假设提取方法,对164个地区16种金属和非金属材料的蓝水足迹(WFblue)进行了评估。我们的研究结果表明,全球WFblue材料生产从1995年的251亿立方米增加到2021年的507亿立方米,其在全球蓝水消耗中的份额从2.8%提高到4.7%。东亚、南亚和大洋洲地区的WFblue在材料生产方面出现了惊人的267%的增长,而已经面临中高水资源压力的中国则出现了高达400%的增长。由于预计材料生产将增长,我们强调水-材料联系方法的紧迫性,特别是在水资源紧张的国家。我们日常生活所依赖的许多材料在生产过程中都有隐藏的淡水成本。在物质生产过程中,物质中蕴含的水分激增,有可能加剧区域水资源短缺。
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引用次数: 0
Sinking Indian megacities 正在下沉的印度大城市
IF 27.1 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-10-28 DOI: 10.1038/s41893-025-01667-w
Ekbal Hussain, Luke Bateson, Alessandro Novellino
Ground subsidence is an increasingly important hazard in cities around the world. Satellite measurements of ground movements show dramatic levels of sinking in five Indian cities and are used to map the risk of damage to buildings in these cities.
地面沉降是世界各地城市日益严重的危害。对地面运动的卫星测量显示,印度五个城市的下沉程度非常严重,并被用于绘制这些城市建筑物受损风险的地图。
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引用次数: 0
Building damage risk in sinking Indian megacities 下沉的印度大城市的建筑损坏风险
IF 27.1 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2025-10-28 DOI: 10.1038/s41893-025-01663-0
Nitheshnirmal Sadhasivam, Leonard Ohenhen, Mohammad Khorrami, Susanna Werth, Manoochehr Shirzaei
Building damage poses serious safety risks, causing substantial financial losses worldwide. Engineering shortcomings are commonly cited as the cause of long-term structural failures, often neglecting the exacerbating role of land subsidence. Here we used satellite radar observations during 2015–2023 to estimate differential settlements at 5 fast-growing Indian megacities, including more than 13 million buildings and 80 million people. Our analysis reveals 878 km² of land subsiding, exposing ~1.9 million people to subsidence rates of more than 4 mm yr−1. An estimated 2,406 buildings across Delhi, Mumbai and Chennai are at high risk of structural damage from ongoing land subsidence. Sustained over 50 years, current subsidence rates could place as many as 23,529 buildings at very high risk of structural damage in Chennai, Delhi, Mumbai, Kolkata and Bengaluru. Our results highlight the compounding risk of infrastructure damage from subsidence, assisting policymakers to develop resilience plans and adaptation strategies that prioritize mitigation and maintenance spending. Building damage and collapse is an emerging problem, particularly in large cities in developing countries. Although engineering shortcomings are often blamed, land subsidence is an underappreciated culprit that could put tens of thousands of buildings at risk across Indian megacities.
建筑损坏是严重的安全隐患,在世界范围内造成巨大的经济损失。工程缺陷通常被认为是长期结构失效的原因,往往忽视了地面沉降的加剧作用。在这里,我们使用2015-2023年的卫星雷达观测数据来估计印度5个快速发展的特大城市的差异定居点,其中包括1300多万栋建筑和8000万人口。我们的分析显示,878平方公里的土地沉降,使190万人暴露在沉降率超过4毫米/年的环境中。在德里、孟买和金奈,估计有2406座建筑因持续的地面沉降而面临结构性破坏的高风险。在金奈、德里、孟买、加尔各答和班加罗尔,以目前的沉降速度持续50多年,可能会使多达23,529座建筑面临结构损坏的极高风险。我们的研究结果强调了下沉造成基础设施破坏的复合风险,有助于决策者制定恢复力计划和适应策略,优先考虑缓解和维护支出。建筑损坏和倒塌是一个新出现的问题,特别是在发展中国家的大城市。尽管工程缺陷经常被指责,但地面沉降是一个被低估的罪魁祸首,它可能使印度大城市成千上万的建筑物处于危险之中。
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引用次数: 0
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