Nature CitiesPub Date : 2025-03-17DOI: 10.1038/s44284-025-00217-x
Xiaochen Huang, Haosheng Yan, Zebang Zhang
{"title":"Economic impacts of capital city relocation in Myanmar","authors":"Xiaochen Huang, Haosheng Yan, Zebang Zhang","doi":"10.1038/s44284-025-00217-x","DOIUrl":"10.1038/s44284-025-00217-x","url":null,"abstract":"A common economic motivation for relocating a country’s capital city is to mitigate big-city problems in the former capital and foster economic growth in the new capital. Analyzing the relocation of Myanmar’s capital city, we find that the economic losses in the former capital outweigh the near-term gains in the new one. In addition, the relocation does not promptly curb urban sprawl or air pollution in the former capital. Huang and co-authors examine the economic impacts of relocating Myanmar’s capital city. They find that economic losses exceed the benefits, while sprawl and pollution in the former capital have not improved.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 4","pages":"299-303"},"PeriodicalIF":0.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123451","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}
Nature CitiesPub Date : 2025-03-17DOI: 10.1038/s44284-025-00224-y
Manuel Esperon-Rodriguez, Rachael Gallagher, Carlo Calfapietra, Paloma Cariñanos, Cynnamon Dobbs, Ana Alice Eleuterio, Diego Esperon Rodriguez, Ali Jahani, Elizaveta Litvak, Stephen J. Livesley, Gabriele Manoli, Renee M. Marchin, Timon McPhearson, Christian Messier, Johan Östberg, Lara A. Roman, Alessio Russo, Maryam Saffariha, Charlie Shackleton, Henrik Sjöman, Ingjerd Solfjeld, Jonah Susskind, Jens-Christian Svenning, Natalie van Doorn, Björn Wiström, Jun Yang, Mark G. Tjoelker
{"title":"Author Correction: Barriers and opportunities for resilient and sustainable urban forests","authors":"Manuel Esperon-Rodriguez, Rachael Gallagher, Carlo Calfapietra, Paloma Cariñanos, Cynnamon Dobbs, Ana Alice Eleuterio, Diego Esperon Rodriguez, Ali Jahani, Elizaveta Litvak, Stephen J. Livesley, Gabriele Manoli, Renee M. Marchin, Timon McPhearson, Christian Messier, Johan Östberg, Lara A. Roman, Alessio Russo, Maryam Saffariha, Charlie Shackleton, Henrik Sjöman, Ingjerd Solfjeld, Jonah Susskind, Jens-Christian Svenning, Natalie van Doorn, Björn Wiström, Jun Yang, Mark G. Tjoelker","doi":"10.1038/s44284-025-00224-y","DOIUrl":"10.1038/s44284-025-00224-y","url":null,"abstract":"","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 4","pages":"357-357"},"PeriodicalIF":0.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s44284-025-00224-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123455","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}
Nature CitiesPub Date : 2025-03-07DOI: 10.1038/s44284-025-00209-x
Qixiang Li, Debin Du, Yingjie Yu
{"title":"Scaling and network evolution of technology transfer in US cities","authors":"Qixiang Li, Debin Du, Yingjie Yu","doi":"10.1038/s44284-025-00209-x","DOIUrl":"10.1038/s44284-025-00209-x","url":null,"abstract":"Cities function as complex systems, and the superlinear scaling laws of patents and incomes are well documented. Technology transfer is a bridge between knowledge and economic progress. Despite its importance, the urban scaling laws of technology transfer remain poorly understood, with limited exploration of their historical network evolution. Here we construct 166-year technology transfer networks for US cities. We find that technology transfers exhibit superlinear scaling with the scaling exponents ranked as intracity transfer > intercity transfer-in > intercity transfer-out. The evolution of the technology transfer network includes a nationwide space-filling process, a hierarchical structure among cities and functional polycentricity within cities. These dynamics have evolved in tandem, each tightly linked to the growth of scaling exponents. Our findings complement insights into the relationship between scaling laws and network evolution, validate the mechanisms of local and nonlocal knowledge interactions and provide new support for the evolutionary theory of complex urban systems. Li and co-authors investigate the urban scaling laws of technology transfer in US cities, charting historical dynamics of the innovation landscape since 1858 and the emergence of new technologies and networks within and between cities.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 4","pages":"316-326"},"PeriodicalIF":0.0,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123445","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}
Nature CitiesPub Date : 2025-03-04DOI: 10.1038/s44284-025-00213-1
W. Christopher Carleton, Hugh Elton, Will Miranda, Isaac Work, Daniel Safarik, Ricarda Winkelmann, Manfred Laubichler, Jürgen Renn, Patrick Roberts
{"title":"Parallel scaling of elite wealth in ancient Roman and modern cities with implications for understanding urban inequality","authors":"W. Christopher Carleton, Hugh Elton, Will Miranda, Isaac Work, Daniel Safarik, Ricarda Winkelmann, Manfred Laubichler, Jürgen Renn, Patrick Roberts","doi":"10.1038/s44284-025-00213-1","DOIUrl":"10.1038/s44284-025-00213-1","url":null,"abstract":"Rapid urbanization and rising inequality are pressing global concerns, yet inequality is an ancient trait of city life that may be intrinsically connected to urbanism itself. Here we investigate how elite wealth scales with urban population size across culture and time by analyzing ancient Roman and modern cities. Using Bayesian models to address archeological uncertainties, we uncovered a consistent correlation between population size and physical expressions of elite wealth in urban spaces. These patterns suggest the presence of an ancient, enduring mechanism underlying urban inequality. Supported by an agent-based network simulation and informed by the settlement scaling theory, we propose that the observed patterns arise from common preferential attachment in social networks—a simple, yet powerful, driver of unequal access to interaction potential. Our findings open up new directions in urban scaling research and underscore the importance of understanding long-term urban dynamics to chart a course toward a fairer urban future. This study carries out a scaling analysis comparing the elite wealth concentration of ancient Roman cities with modern urban centers. It found that increased wealth concentration corresponds with increased population sizes across these cities despite being separated by millennia.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 4","pages":"344-355"},"PeriodicalIF":0.0,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s44284-025-00213-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123446","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}
Nature CitiesPub Date : 2025-03-03DOI: 10.1038/s44284-025-00207-z
{"title":"Better cities, better lives","authors":"","doi":"10.1038/s44284-025-00207-z","DOIUrl":"10.1038/s44284-025-00207-z","url":null,"abstract":"Cities are known for improving quality of life, yet they also face numerous challenges as they evolve. In this issue of Nature Cities, which includes a Focus on smart cities, we delve into how cities generate opportunities to fulfill fundamental human needs such as food and shelter, all the while encountering obstacles in adopting new services, promoting equity and implementing policies.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 2","pages":"105-105"},"PeriodicalIF":0.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s44284-025-00207-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143555245","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}
Nature CitiesPub Date : 2025-03-03DOI: 10.1038/s44284-025-00206-0
{"title":"Smart cities beyond technology","authors":"","doi":"10.1038/s44284-025-00206-0","DOIUrl":"10.1038/s44284-025-00206-0","url":null,"abstract":"The digital revolution has brought with it the promise of smart cities, harnessing big data to address complex urban issues. This Focus explores how the smart city concept can move beyond its technological foundations to encompass socially just and person-centric solutions that improve urban life.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 2","pages":"106-106"},"PeriodicalIF":0.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s44284-025-00206-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143555246","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}
Nature CitiesPub Date : 2025-03-03DOI: 10.1038/s44284-025-00204-2
Long Shi, Jinhui Wang, Guohui Li, Michael Yit Lin Chew, Heping Zhang, Guomin Zhang, Bogdan Z. Dlugogorski
{"title":"Increasing fire risks in cities worldwide under warming climate","authors":"Long Shi, Jinhui Wang, Guohui Li, Michael Yit Lin Chew, Heping Zhang, Guomin Zhang, Bogdan Z. Dlugogorski","doi":"10.1038/s44284-025-00204-2","DOIUrl":"10.1038/s44284-025-00204-2","url":null,"abstract":"Anthropogenic warming is known to have influenced vegetation fires. However, how, or to what extent, a warming climate will impact urban fire frequency remains unknown. Here we quantify the shift in the frequency of various urban fire incident types in response to a warming climate using a global fire incidents database collected from 2,847 cities. We find that the frequency of building fires increases quadratically, and the minimum occurs at thermal comfort temperature (that is, around 24.0 °C), while for every 1 °C increase in air temperature, the frequencies of vehicle and outdoor fires increase by (2.5 ± 0.8)% (mean ± standard error) and (4.7 ± 2.2)%, respectively. In the SSP5-8.5 scenario by 2100, we project that building fire frequencies could decrease by (4.6 ± 1.1)%, while vehicle and outdoor fires could increase by (11.6 ± 3.7)% and (22.2 ± 10.2)%, respectively. These findings can guide the development of climate-resilient strategies by providing quantitative advice on allocating and reallocating budgets for national fire services across cities. Although urban fire incidents cause enormous casualties due to dense population concentrations, the risks from these incidents under a warming climate remain unknown. This study analyzed a global database of urban fire incidents to quantify and predict changes in the frequency of various urban fire incident types in response to a warming climate, finding general increases in fire frequency.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 3","pages":"254-264"},"PeriodicalIF":0.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143668475","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}
{"title":"A systematic review of smart city governance in the Southern African Development Community","authors":"Federica Duca, Amy Mutua, Lucille Tetley-Brown, Geci Karuri-Sebina, Judy Backhouse","doi":"10.1038/s44284-025-00199-w","DOIUrl":"10.1038/s44284-025-00199-w","url":null,"abstract":"This paper offers a systematic review of literature on smart cities in the Southern African Development Community countries, with a focus on the complexities of urban dynamics and governance within the region. The novelty of this qualitative systematic review is that it includes policy documents and reports as well as academic papers to interrogate the state of both smart city knowledge and smart city practice in the region. The review identified five research themes, namely, (1) the social development promises of the smart city, (2) institutionalizing smart city governance, (3) smart cities and digital citizenship, (4) smart city (as) infrastructure and (5) approaches to ‘smarting’ the city. The study shows that, for a comprehensive agenda on smart city research, more attention should be given to smart city projects and the impacts of digitalization and datafication, but it also finds that more considered local and governance-oriented lenses for such agendas are necessary if they are to be relevant to the Southern African Development Community region. This study is a systematic review that combines both academic and policy sources to assess the state of smart cities in the Southern African Development Community. It found five major themes that call for a more nuanced approach to smart city governance that accounts for local variations.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 2","pages":"149-156"},"PeriodicalIF":0.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143555220","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}
Nature CitiesPub Date : 2025-02-28DOI: 10.1038/s44284-025-00212-2
Manuel Esperon-Rodriguez, Rachael Gallagher, Carlo Calfapietra, Paloma Cariñanos, Cynnamon Dobbs, Ana Alice Eleuterio, Diego Esperon Rodriguez, Ali Jahani, Elizaveta Litvak, Stephen J. Livesley, Gabriele Manoli, Renee M. Marchin, Timon McPhearson, Christian Messier, Johan Östberg, Lara A. Roman, Alessio Russo, Maryam Saffariha, Charlie Shackleton, Henrik Sjöman, Ingjerd Solfjeld, Jonah Susskind, Jens-Christian Svenning, Natalie van Doorn, Björn Wiström, Jun Yang, Mark G. Tjoelker
{"title":"Barriers and opportunities for resilient and sustainable urban forests","authors":"Manuel Esperon-Rodriguez, Rachael Gallagher, Carlo Calfapietra, Paloma Cariñanos, Cynnamon Dobbs, Ana Alice Eleuterio, Diego Esperon Rodriguez, Ali Jahani, Elizaveta Litvak, Stephen J. Livesley, Gabriele Manoli, Renee M. Marchin, Timon McPhearson, Christian Messier, Johan Östberg, Lara A. Roman, Alessio Russo, Maryam Saffariha, Charlie Shackleton, Henrik Sjöman, Ingjerd Solfjeld, Jonah Susskind, Jens-Christian Svenning, Natalie van Doorn, Björn Wiström, Jun Yang, Mark G. Tjoelker","doi":"10.1038/s44284-025-00212-2","DOIUrl":"10.1038/s44284-025-00212-2","url":null,"abstract":"As cities heat up and expand in area and population, urban forests offer a nature-based solution to enhance liveability and reduce rising temperatures in cities. However, urban forests are vulnerable to climate change and face costly establishment and maintenance challenges. Here we explore four key ecological and socioeconomic barriers to achieving resilient urban forests: species selection, tree supply, tree life cycle (establishment and maintenance, including irrigation) and community engagement. We discuss how integrating traditional urban forestry practices with emerging technology offers a holistic approach to creating resilient, sustainable urban forests that can adapt to climate change while meeting community needs. Forests help to sustain cities and all who live in them. This Review considers barriers to sustaining resilient forests and suggests paths for overcoming them.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 4","pages":"290-298"},"PeriodicalIF":0.0,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123448","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}