Pub Date : 2025-10-01DOI: 10.1038/s44284-025-00323-w
Niké Susan Wesch, Sonja De Beer, Carike Claassen, Roelof Petrus Burger, Selna Cornelius, Elizelle Juaneé Cilliers, Stuart John Piketh
Conflicting interests and logic weaken policy effectiveness and induce clashes between the state and local communities. As the “protest capital of the world,” this is particularly evident in South Africa. The study uses a grounded theory approach, combining the analysis of government planning directives with qualitative data from seven South African low-income communities, to explore how quality of life is understood and prioritized. Although state and community actors broadly agree on what contributes to quality of life, the findings reveal important disconnects in how priorities are framed. These misalignments emerge across temporal, responsibility and spatial dimensions. Communities face daily employment, services and safety challenges, whereas state planning often focuses on long-term development. Improving the quality of life will require recognizing that spatial decisions are shaped by interpretation, power dynamics and the uneven use of data in decision-making. State planning goals in South Africa often misalign with the lived realities of communities despite shared quality-of-life visions. Analysis across low-income communities reveals temporal, spatial and responsibility disconnects between government directives and urgent local needs.
{"title":"Policy visions and lived realities diverge in pursuit of urban quality of life in Africa","authors":"Niké Susan Wesch, Sonja De Beer, Carike Claassen, Roelof Petrus Burger, Selna Cornelius, Elizelle Juaneé Cilliers, Stuart John Piketh","doi":"10.1038/s44284-025-00323-w","DOIUrl":"10.1038/s44284-025-00323-w","url":null,"abstract":"Conflicting interests and logic weaken policy effectiveness and induce clashes between the state and local communities. As the “protest capital of the world,” this is particularly evident in South Africa. The study uses a grounded theory approach, combining the analysis of government planning directives with qualitative data from seven South African low-income communities, to explore how quality of life is understood and prioritized. Although state and community actors broadly agree on what contributes to quality of life, the findings reveal important disconnects in how priorities are framed. These misalignments emerge across temporal, responsibility and spatial dimensions. Communities face daily employment, services and safety challenges, whereas state planning often focuses on long-term development. Improving the quality of life will require recognizing that spatial decisions are shaped by interpretation, power dynamics and the uneven use of data in decision-making. State planning goals in South Africa often misalign with the lived realities of communities despite shared quality-of-life visions. Analysis across low-income communities reveals temporal, spatial and responsibility disconnects between government directives and urgent local needs.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 11","pages":"1060-1070"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145533786","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}
Pub Date : 2025-09-29DOI: 10.1038/s44284-025-00328-5
Marie Josefine Hintz, Nikola Milojevic-Dupont, Felix Creutzig, Tim Repke, Lynn H. Kaack
Many cities are interested in leveraging artificial intelligence and machine learning (ML) to help urban climate change mitigation (UCCM). Researchers and practitioners, however, are only beginning to understand how ML can contribute to achieving climate targets in cities. Here, we systematically map 2,300 peer-reviewed articles published between 1994 and 2024 that explore the use of ML in UCCM. We find that, despite fast growth in this research area, the use of generative artificial intelligence and large language models remains negligible, which contrasts to their increasing adoption in other urban domains. Among 40 identified application areas, ML research focuses predominantly on high-impact mitigation options denoted by the Intergovernmental Panel on Climate Change. This trend may partly be driven by data availability and commercial interest, which risk perpetuating geographic inequities and diverting efforts toward less impactful mitigation options. We therefore offer recommendations to guide the impactful deployment of ML solutions in UCCM. At the nexus of machine learning and urban climate change mitigation, this systematic map identifies a fast growth of research, highlights under-researched impact areas and reveals geographic biases. It also offers recommendations to promote the impactful deployment of machine learning solutions in this urban domain.
{"title":"A systematic map of machine learning for urban climate change mitigation","authors":"Marie Josefine Hintz, Nikola Milojevic-Dupont, Felix Creutzig, Tim Repke, Lynn H. Kaack","doi":"10.1038/s44284-025-00328-5","DOIUrl":"10.1038/s44284-025-00328-5","url":null,"abstract":"Many cities are interested in leveraging artificial intelligence and machine learning (ML) to help urban climate change mitigation (UCCM). Researchers and practitioners, however, are only beginning to understand how ML can contribute to achieving climate targets in cities. Here, we systematically map 2,300 peer-reviewed articles published between 1994 and 2024 that explore the use of ML in UCCM. We find that, despite fast growth in this research area, the use of generative artificial intelligence and large language models remains negligible, which contrasts to their increasing adoption in other urban domains. Among 40 identified application areas, ML research focuses predominantly on high-impact mitigation options denoted by the Intergovernmental Panel on Climate Change. This trend may partly be driven by data availability and commercial interest, which risk perpetuating geographic inequities and diverting efforts toward less impactful mitigation options. We therefore offer recommendations to guide the impactful deployment of ML solutions in UCCM. At the nexus of machine learning and urban climate change mitigation, this systematic map identifies a fast growth of research, highlights under-researched impact areas and reveals geographic biases. It also offers recommendations to promote the impactful deployment of machine learning solutions in this urban domain.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 10","pages":"924-936"},"PeriodicalIF":0.0,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145317849","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}
Pub Date : 2025-09-23DOI: 10.1038/s44284-025-00320-z
Sara L. Gandy, Jessica L. Hall, Grace Plahe, Kirsty Watkinson, David Johnson, Richard J. Birtles, Lucy Gilbert
Within- and between-city contexts and interactions shape our experiences of city life. However, a gap in understanding is how the wider landscape context of cities and the interactions with hinterlands influence urban ecology and health hazards. Using a meta-ecosystem framework, we fill this gap for the tick-borne Lyme disease ecological system by comparing the tick and Lyme disease hazards of urban and hinterland sites for 16 UK cities. We discover that the environmental hazards of ticks and Lyme disease of urban greenspaces are two- and threefold lower, respectively, than those of hinterland woodlands. Crucially, urban tick and Lyme disease hazards are shaped by tick abundance and the landcover (woodland and built-up) of hinterlands, but not of cities themselves. This highlights how rural–urban interactions form meta-ecosystems, and urban eco-epidemiology can depend on the characteristics of the surrounding rural landscape. Therefore, to better understand urban ecological processes and to mitigate disease risk in cities, it may be necessary to consider environmental factors in the hinterland such as landcover and disease hazard outside cities. Context counts, and not just for social and economic aspects of urban life. This study finds that, for 16 cities in the United Kingdom, the landcover of the rural surroundings is a better predictor of ticks and environmental Lyme disease hazard than the landcover within the cities themselves.
{"title":"The dependence of urban tick and Lyme disease hazards on the hinterlands","authors":"Sara L. Gandy, Jessica L. Hall, Grace Plahe, Kirsty Watkinson, David Johnson, Richard J. Birtles, Lucy Gilbert","doi":"10.1038/s44284-025-00320-z","DOIUrl":"10.1038/s44284-025-00320-z","url":null,"abstract":"Within- and between-city contexts and interactions shape our experiences of city life. However, a gap in understanding is how the wider landscape context of cities and the interactions with hinterlands influence urban ecology and health hazards. Using a meta-ecosystem framework, we fill this gap for the tick-borne Lyme disease ecological system by comparing the tick and Lyme disease hazards of urban and hinterland sites for 16 UK cities. We discover that the environmental hazards of ticks and Lyme disease of urban greenspaces are two- and threefold lower, respectively, than those of hinterland woodlands. Crucially, urban tick and Lyme disease hazards are shaped by tick abundance and the landcover (woodland and built-up) of hinterlands, but not of cities themselves. This highlights how rural–urban interactions form meta-ecosystems, and urban eco-epidemiology can depend on the characteristics of the surrounding rural landscape. Therefore, to better understand urban ecological processes and to mitigate disease risk in cities, it may be necessary to consider environmental factors in the hinterland such as landcover and disease hazard outside cities. Context counts, and not just for social and economic aspects of urban life. This study finds that, for 16 cities in the United Kingdom, the landcover of the rural surroundings is a better predictor of ticks and environmental Lyme disease hazard than the landcover within the cities themselves.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 10","pages":"948-957"},"PeriodicalIF":0.0,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s44284-025-00320-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145317848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-18DOI: 10.1038/s44284-025-00247-5
Mojtaba Parsaee
Urban resilience is rooted in our ability to harmonize with nature and cultivate deeper relationships with local climates. Mojtaba Parsaee reflects on how the historic neighborhoods of four cities have nurtured his poetic bond with harsh climates, which inspires his vision of resilience.
{"title":"Harmonizing with nature in cities","authors":"Mojtaba Parsaee","doi":"10.1038/s44284-025-00247-5","DOIUrl":"10.1038/s44284-025-00247-5","url":null,"abstract":"Urban resilience is rooted in our ability to harmonize with nature and cultivate deeper relationships with local climates. Mojtaba Parsaee reflects on how the historic neighborhoods of four cities have nurtured his poetic bond with harsh climates, which inspires his vision of resilience.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 9","pages":"908-908"},"PeriodicalIF":0.0,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123466","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}
Pub Date : 2025-09-18DOI: 10.1038/s44284-025-00329-4
Cities frequently find themselves on the frontlines of the climate crisis, facing acute environmental risks while also holding the potential to lead transformative changes. In this joint Focus issue between Nature Climate Change and Nature Cities, we explore how cities are evolving into strategic actors by harnessing public education, engineering innovation and governance frameworks to drive climate solutions.
{"title":"Cities rising to climate challenges","authors":"","doi":"10.1038/s44284-025-00329-4","DOIUrl":"10.1038/s44284-025-00329-4","url":null,"abstract":"Cities frequently find themselves on the frontlines of the climate crisis, facing acute environmental risks while also holding the potential to lead transformative changes. In this joint Focus issue between Nature Climate Change and Nature Cities, we explore how cities are evolving into strategic actors by harnessing public education, engineering innovation and governance frameworks to drive climate solutions.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 9","pages":"771-772"},"PeriodicalIF":0.0,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s44284-025-00329-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-17DOI: 10.1038/s44284-025-00326-7
Tian Gan, Tanisha Dighe, Maurizio Porfiri
There is consensus that urban residents have better access to healthcare than rural residents in the USA, yet this knowledge is based mostly on primary care services. Here we put forward a multidimensional examination of healthcare access to 75 medical specialties in 898 US cities. Leveraging urban scaling theory, economic geography and network science, we confirm the expectation that residents in large cities have access to a more diverse range of specialists. Concurrently, we register a surprising sublinear scaling of the prevalence of most specialty providers: the larger the city, the less the provision of specialized healthcare per capita and per unit area. We propose that the trade-off between diversity and provision is related to economic clustering in the healthcare sector and high patient loading of providers in large cities. These findings suggest the need for city-specific strategies to address emerging inequalities in healthcare services. Healthcare access varies dramatically across urban areas, yet most research focuses on primary care in rural versus urban settings. Analysis of medical specialties across US cities reveals a surprising paradox: larger cities offer more diverse healthcare but fewer specialists per capita.
{"title":"Trade-off between diversity and provision of specialized healthcare in US cities","authors":"Tian Gan, Tanisha Dighe, Maurizio Porfiri","doi":"10.1038/s44284-025-00326-7","DOIUrl":"10.1038/s44284-025-00326-7","url":null,"abstract":"There is consensus that urban residents have better access to healthcare than rural residents in the USA, yet this knowledge is based mostly on primary care services. Here we put forward a multidimensional examination of healthcare access to 75 medical specialties in 898 US cities. Leveraging urban scaling theory, economic geography and network science, we confirm the expectation that residents in large cities have access to a more diverse range of specialists. Concurrently, we register a surprising sublinear scaling of the prevalence of most specialty providers: the larger the city, the less the provision of specialized healthcare per capita and per unit area. We propose that the trade-off between diversity and provision is related to economic clustering in the healthcare sector and high patient loading of providers in large cities. These findings suggest the need for city-specific strategies to address emerging inequalities in healthcare services. Healthcare access varies dramatically across urban areas, yet most research focuses on primary care in rural versus urban settings. Analysis of medical specialties across US cities reveals a surprising paradox: larger cities offer more diverse healthcare but fewer specialists per capita.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 10","pages":"980-989"},"PeriodicalIF":0.0,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145317844","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}
Pub Date : 2025-09-16DOI: 10.1038/s44284-025-00313-y
Agnieszka Krzyżaniak, Daisy Hessenberger
Cities urgently require sustainable and regenerative practices, such as nature-based solutions (NbSs). Successful in climate adaptation and increasing biodiversity, NbSs often combine gray and green infrastructure to tackle more complex issues. Simultaneously, synthetic biology (SynBio)—the ability to ‘write’ DNA and thereby enhance organisms—is on the rise. Despite its own set of challenges, including ethical ones, SynBio has the potential to address limitations in resources, increases in pollution and even the fading biodiversity of our cities. Hence, its role in regeneration, especially in conjunction with NbSs, should be explored. After all, interesting times require interesting measures. Nature-based solutions have long been touted as important for addressing urban challenges, such as from climate change. This Perspective argues for using synthetic biology to help to meet such challenges and make our cities more sustainable.
{"title":"Tackling urban challenges with synthetic biology in SynCity","authors":"Agnieszka Krzyżaniak, Daisy Hessenberger","doi":"10.1038/s44284-025-00313-y","DOIUrl":"10.1038/s44284-025-00313-y","url":null,"abstract":"Cities urgently require sustainable and regenerative practices, such as nature-based solutions (NbSs). Successful in climate adaptation and increasing biodiversity, NbSs often combine gray and green infrastructure to tackle more complex issues. Simultaneously, synthetic biology (SynBio)—the ability to ‘write’ DNA and thereby enhance organisms—is on the rise. Despite its own set of challenges, including ethical ones, SynBio has the potential to address limitations in resources, increases in pollution and even the fading biodiversity of our cities. Hence, its role in regeneration, especially in conjunction with NbSs, should be explored. After all, interesting times require interesting measures. Nature-based solutions have long been touted as important for addressing urban challenges, such as from climate change. This Perspective argues for using synthetic biology to help to meet such challenges and make our cities more sustainable.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 9","pages":"783-793"},"PeriodicalIF":0.0,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123470","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}
Pub Date : 2025-09-15DOI: 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
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.
{"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}
Pub Date : 2025-09-12DOI: 10.1038/s44284-025-00318-7
Ji Eun Lee, Kwan Ok Lee, Hyojung Lee
Stimulus payment programs have been instrumental in supporting economic activity during the COVID-19 pandemic, yet their public health implications remain underexplored. This study examines a unique policy in Seoul, South Korea, which restricted stimulus spending to recipients’ residential cities, to assess its potential in mitigating virus transmission. Using credit card transactions, mobility records and COVID-19 case data, we apply a triple difference-in-differences approach to analyze how the policy reshaped spatial consumption patterns. Results indicate that while the stimulus program boosted overall spending, it also significantly redistributed spending geographically. The restriction led to reduced consumption outside Seoul and a greater concentration of local spending, effectively limiting mobility. Spillover analysis shows localized consumption had a lower impact on infection rates than cross-neighborhood consumption. Simulations suggest the geographic restriction reduced COVID-19 cases by 17% versus an unrestricted scenario. These findings suggest geographically targeted stimulus policies can balance economic recovery with public health objectives. Seoul’s stimulus program restricted spending to recipients’ residential cities during the COVID-19 pandemic, redistributing consumption geographically. Analysis of credit card data reveals a decrease in virus spread compared to scenarios without restrictions, offering insights for future pandemics.
{"title":"Geographic restrictions in stimulus spending mitigated COVID-19 transmission in Seoul","authors":"Ji Eun Lee, Kwan Ok Lee, Hyojung Lee","doi":"10.1038/s44284-025-00318-7","DOIUrl":"10.1038/s44284-025-00318-7","url":null,"abstract":"Stimulus payment programs have been instrumental in supporting economic activity during the COVID-19 pandemic, yet their public health implications remain underexplored. This study examines a unique policy in Seoul, South Korea, which restricted stimulus spending to recipients’ residential cities, to assess its potential in mitigating virus transmission. Using credit card transactions, mobility records and COVID-19 case data, we apply a triple difference-in-differences approach to analyze how the policy reshaped spatial consumption patterns. Results indicate that while the stimulus program boosted overall spending, it also significantly redistributed spending geographically. The restriction led to reduced consumption outside Seoul and a greater concentration of local spending, effectively limiting mobility. Spillover analysis shows localized consumption had a lower impact on infection rates than cross-neighborhood consumption. Simulations suggest the geographic restriction reduced COVID-19 cases by 17% versus an unrestricted scenario. These findings suggest geographically targeted stimulus policies can balance economic recovery with public health objectives. Seoul’s stimulus program restricted spending to recipients’ residential cities during the COVID-19 pandemic, redistributing consumption geographically. Analysis of credit card data reveals a decrease in virus spread compared to scenarios without restrictions, offering insights for future pandemics.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 10","pages":"969-979"},"PeriodicalIF":0.0,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145317841","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}
Pub Date : 2025-09-10DOI: 10.1038/s44284-025-00319-6
There was a considerable trend of urban expansion onto hillsides from 2000 to 2020, which covered 11.65 million hectares globally. This expansion has destroyed 6.73 million hectares of natural habitats and further directly affected about 70% of threatened species, which highlights the fact that urgent policy action is needed to balance such development with terrestrial biodiversity conservation.
{"title":"Urban expansion onto hillsides poses unprecedented threats to terrestrial biodiversity","authors":"","doi":"10.1038/s44284-025-00319-6","DOIUrl":"10.1038/s44284-025-00319-6","url":null,"abstract":"There was a considerable trend of urban expansion onto hillsides from 2000 to 2020, which covered 11.65 million hectares globally. This expansion has destroyed 6.73 million hectares of natural habitats and further directly affected about 70% of threatened species, which highlights the fact that urgent policy action is needed to balance such development with terrestrial biodiversity conservation.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 10","pages":"916-917"},"PeriodicalIF":0.0,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145317846","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：