Nature Cities最新文献

Harmonizing with nature in cities 在城市中与自然和谐相处

Nature Cities Pub Date : 2025-09-18 DOI: 10.1038/s44284-025-00247-5

Mojtaba Parsaee

引用次数: 0

Cities rising to climate challenges 城市应对气候挑战

Nature Cities Pub Date : 2025-09-18 DOI: 10.1038/s44284-025-00329-4

引用次数: 0

Tackling urban challenges with synthetic biology in SynCity 在SynCity用合成生物学解决城市挑战

Nature Cities Pub Date : 2025-09-16 DOI: 10.1038/s44284-025-00313-y

Agnieszka Krzyżaniak, Daisy Hessenberger

引用次数: 0

Individual and city-level variations in heat-related road traffic deaths in Latin America 拉丁美洲与高温有关的道路交通死亡的个人和城市差异

Nature Cities Pub Date : 2025-09-15 DOI: 10.1038/s44284-025-00279-x

Cheng-Kai Hsu, D. Alex Quistberg, Brisa N. Sánchez, Josiah L. Kephart, Usama Bilal, Nelson Gouveia, Carolina Pérez Ferrer, Waleska T. Caiaffa, Amélia Augusta de Lima Friche, Ignacio Yannone, Daniel A. Rodríguez

{"title":"Individual and city-level variations in heat-related road traffic deaths in Latin America","authors":"Cheng-Kai Hsu, D. Alex Quistberg, Brisa N. Sánchez, Josiah L. Kephart, Usama Bilal, Nelson Gouveia, Carolina Pérez Ferrer, Waleska T. Caiaffa, Amélia Augusta de Lima Friche, Ignacio Yannone, Daniel A. Rodríguez","doi":"10.1038/s44284-025-00279-x","DOIUrl":"10.1038/s44284-025-00279-x","url":null,"abstract":"Latin America experiences both high road traffic mortality and extreme heat, which have been shown elsewhere to be interrelated. However, few studies have examined this association in Latin America—one of the world’s most urbanized, fastest-motorizing regions, with a high share of vulnerable road users—and even fewer have analyzed multiple cities across diverse climates and urban settings. Leveraging ambient temperature and road traffic mortality data (2000–2019) from 272 cities in six Latin American countries, we conducted a time-stratified case-crossover study. On the basis of over 1.9 million city-days of data, we found that road traffic mortality risk generally increased with temperature in a monotonic pattern, with significantly elevated risk on extremely hot days, defined at the 95th and 99th temperature percentiles. Risks were particularly high among younger individuals (≤19 years), males, motorcyclists and bicyclists and in cities with hotter climates, longer commutes and more extended street segments. Cities in the tropical Global South should prioritize protecting vulnerable road users, particularly those in peripheral areas, where many endure long, heat-exposed commutes in informal, non-climate-controlled transport. Extreme heat in Latin America increases road traffic mortality risks, with motorcyclists and bicyclists facing a 27% higher risk on the hottest days. Urban protection measures for vulnerable commuters in cities in the Global South are critical as climate change intensifies heat exposure.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 9","pages":"897-906"},"PeriodicalIF":0.0,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Satellite analysis of methane emissions connects war and urban sustainability 甲烷排放的卫星分析将战争和城市可持续性联系起来

Nature Cities Pub Date : 2025-09-05 DOI: 10.1038/s44284-025-00312-z

引用次数: 0

Vast and hidden urban methane emissions from the Russia–Ukraine war 俄乌战争造成的大量隐蔽的城市甲烷排放

Nature Cities Pub Date : 2025-09-04 DOI: 10.1038/s44284-025-00309-8

Zeyu Feng, Rong Hu, Yuqing Pan, Qianjian Xv, Jing Zhang, Qingyong Wang, Kaiqin Cao, Shufeng Liu, Alexander Baklanov, Jens Hesselbjerg Christen, Daniel Rosenfeld, John H. Seinfeld, Shaocai Yu, Pengfei Li

{"title":"Vast and hidden urban methane emissions from the Russia–Ukraine war","authors":"Zeyu Feng, Rong Hu, Yuqing Pan, Qianjian Xv, Jing Zhang, Qingyong Wang, Kaiqin Cao, Shufeng Liu, Alexander Baklanov, Jens Hesselbjerg Christen, Daniel Rosenfeld, John H. Seinfeld, Shaocai Yu, Pengfei Li","doi":"10.1038/s44284-025-00309-8","DOIUrl":"10.1038/s44284-025-00309-8","url":null,"abstract":"Historically, cities have figured prominently in wars, including as targets. However, the impacts of warfare on the environmental signatures of urban systems remain less understood. Here we propose a comprehensive satellite-constellation-based framework to systematically assess methane emissions attributable to the Russia–Ukraine war. We find that this conflict overturns the conventional urban–rural methane emissions relationship, typically dominated by rural methane emissions. Urban methane emissions, initially just 21% of rural levels, rapidly rise to match rural levels after very few attacks and escalate to ~146%–588% of rural levels under extensive and intensive warfare, revealing urban systems’ greater vulnerability to warfare disruption. Civilian infrastructure, primarily residential buildings, emerges as a major emission source, matching military facilities in both emission intensity and frequency. These findings uncover an underappreciated, direct relationship between warfare, methane emissions and urban degradation. In the context of ongoing global conflicts, this relationship underscores the urgent need to monitor the greenhouse-gas signatures of besieged cities and highlights peace as a fundamental prerequisite for achieving climate-related Sustainable Development Goals. War has myriad recognized impacts on cities and the environment. This study adds insult to injury, providing spaceborne evidence that the destruction of warfare triggers rapid and substantial increases in urban methane emissions.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 9","pages":"884-896"},"PeriodicalIF":0.0,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Establishing the nexus between urban walkability and thermal comfort in a changing climate 在不断变化的气候中建立城市步行性和热舒适性之间的联系

Nature Cities Pub Date : 2025-09-02 DOI: 10.1038/s44284-025-00315-w

Nisreen Abuwaer, Safi Ullah, Sami G. Al-Ghamdi

{"title":"Establishing the nexus between urban walkability and thermal comfort in a changing climate","authors":"Nisreen Abuwaer, Safi Ullah, Sami G. Al-Ghamdi","doi":"10.1038/s44284-025-00315-w","DOIUrl":"10.1038/s44284-025-00315-w","url":null,"abstract":"The urban walking experience is undergoing profound challenges as it grapples with increased threats of climate change. Effectively understanding walkability in this context requires a detailed examination of how climatic and weather extremes disrupt outdoor walking. Here the authors offer insights into the nexus between climate change and walkability, emphasizing how this connection can be examined through the lens of thermal comfort in urban environments. This nexus is explored by examining various methodologies and climatic zones to evaluate how various weather conditions—particularly extreme heat—affect walkability in cities. The assessment of thermal comfort, adaptation strategies and relevant indices enables a deeper understanding of how outdoor thermal stress impedes walkability. Overall, the walkability‒climate change nexus not only reveals the challenges to walkability, but also presents opportunities to explore climate adaptation strategies that enhance the urban pedestrian experience. Climate change is making walking in cities more difficult. This Review examines the connection between climate change and walkability, focusing on thermal comfort in complex urban environments.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 9","pages":"801-811"},"PeriodicalIF":0.0,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The city as text 作为文本的城市

Nature Cities Pub Date : 2025-09-01 DOI: 10.1038/s44284-025-00314-x

Jonathan Reades, Yingjie Hu, Emmanouil Tranos, Elizabeth Delmelle

引用次数: 0

Synergistic action on mitigation and adaptation pilot policies to enhance low-carbon resilience of Chinese cities 减缓和适应试点政策协同行动，增强中国城市低碳韧性

Nature Cities Pub Date : 2025-08-26 DOI: 10.1038/s44284-025-00303-0

Di Wang, Shiwei Chen

{"title":"Synergistic action on mitigation and adaptation pilot policies to enhance low-carbon resilience of Chinese cities","authors":"Di Wang, Shiwei Chen","doi":"10.1038/s44284-025-00303-0","DOIUrl":"10.1038/s44284-025-00303-0","url":null,"abstract":"Mitigation and adaptation strategies are recognized as effective means to enhance urban resilience against climate change; however, their combined effects at the urban level are less studied. Here we investigate the synergistic impacts of low-carbon and climate-resilient pilot policies on urban resilience, using panel data from 286 Chinese cities (2005–2022). The findings indicate that dual-pilot policies significantly enhance the low-carbon resilience of pilot cities, outperforming single-pilot policies. The effectiveness of these policies exhibits variation across different city categories: cities subjected to extreme weather and high disaster risks demonstrate more pronounced benefits, whereas medium ecological and economic low-carbon resilience, high social low-carbon resilience and medium institutional low-carbon resilience (MMHM) cities show consistent effects and low ecological, economic, social and institutional low-carbon resilience (LLLL) cities exhibit varied responses. Furthermore, green technology innovation, human capital development and communication infrastructure are critical to improving policy effectiveness. The diversity and integration of policy instruments, along with the multidimensionality and synergy of policy objectives, are essential for effective climate action. It is recommended that cities integrate both mitigation and adaptation strategies to optimize synergies and bolster urban resilience. Dual implementation of climate mitigation and adaptation policies in Chinese cities significantly enhances low-carbon resilience, particularly under extreme weather, through green innovation, human capital and infrastructure. This integrated approach offers a model for urban climate governance, emphasizing co-benefits and tailored strategies for diverse city types.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 9","pages":"812-824"},"PeriodicalIF":0.0,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Urban planning decisions expose Traveller sites to disproportionate environmental burdens 城市规划决策使游民场所面临不成比例的环境负担

Nature Cities Pub Date : 2025-08-26 DOI: 10.1038/s44284-025-00307-w

Nicolas Mondolfo, Antoine Leblois, Philippe Delacote, Léa Tardieu

{"title":"Urban planning decisions expose Traveller sites to disproportionate environmental burdens","authors":"Nicolas Mondolfo, Antoine Leblois, Philippe Delacote, Léa Tardieu","doi":"10.1038/s44284-025-00307-w","DOIUrl":"10.1038/s44284-025-00307-w","url":null,"abstract":"Ethnic minorities often face environmental inequalities, as they are more likely to be exposed to hazardous and polluting facilities. Yet the role of urban planning on shaping these inequalities, particularly in Europe, remains understudied. The siting of Traveller sites offers a clear example of how repeated urban planning decisions can produce systemic discrimination, as local representatives determine where Travellers are allowed to stay, thereby directly influencing their exposure to environmental disamenities. Here by linking Traveller sites in France with socioeconomic and environmental data, we provide statistical evidence that Traveller sites are more likely to be implemented in cities with more disamenities and that sites are more exposed than any other residential areas within these cities (even other disadvantaged households). On the basis of our findings, we discuss two potential mechanisms that may underpin this discrimination: cost minimization and discriminatory preferences of local representatives and residents. The Travellers case illustrates the need for more thorough examinations of how urban planning decisions contribute to socio-spatial inequalities, particularly in the European context. French planning decisions systematically locate Traveller sites near environmental disamenities. This study reveals disproportionate exposure to waste facilities and highways compared to other residential areas.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 9","pages":"865-874"},"PeriodicalIF":0.0,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0