Hicham Achebak, Pierre Masselot, Joan Ballester, Antonio Gasparrini, Grégoire Rey
{"title":"Greening mitigates heat-related mortality in Paris.","authors":"Hicham Achebak, Pierre Masselot, Joan Ballester, Antonio Gasparrini, Grégoire Rey","doi":"10.1038/s42949-025-00334-5","DOIUrl":"10.1038/s42949-025-00334-5","url":null,"abstract":"<p><p>Cities are vulnerable to heat-related health impacts due to the compounding effects of urban heat island (UHI) and rising temperatures because of climate change. Here we characterise the contextual factors exacerbating and attenuating the risk of mortality associated with high temperature in the city of Paris. Findings suggest that reducing urban heat and mitigating UHI through urban greening should be at the forefront of adaptation strategies to prevent heat-related health impacts in cities.</p>","PeriodicalId":74322,"journal":{"name":"npj urban sustainability","volume":"6 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7618780/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147286484","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}
npj urban sustainabilityPub Date : 2026-01-01Epub Date: 2026-01-20DOI: 10.1038/s42949-025-00317-6
Hug March, Katie Meehan, Elena Domene, Mar Satorras, David Saurí
{"title":"Why water security matters to cities under extreme heat in the Global North.","authors":"Hug March, Katie Meehan, Elena Domene, Mar Satorras, David Saurí","doi":"10.1038/s42949-025-00317-6","DOIUrl":"10.1038/s42949-025-00317-6","url":null,"abstract":"<p><p>Household water security - safe, affordable, reliable, and acceptable water for a thriving life - is a key avenue for adapting to extreme and chronic heat, particularly in cities. We argue that household water security is far from universal in the urban Global North, resulting in uneven capacities and strategies to adapt to heat, outside and within the home. We synthesize key insights to advance water security as a central plank of urban heat justice.</p>","PeriodicalId":74322,"journal":{"name":"npj urban sustainability","volume":"6 1","pages":"15"},"PeriodicalIF":8.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12819138/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146031953","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}
npj urban sustainabilityPub Date : 2026-01-01Epub Date: 2026-08-25DOI: 10.1038/s42949-026-00457-3
Stergios-Aristoteles Mitoulis, Nadiia Kopiika, Roberta Di Bari, Sotirios Argyroudis
{"title":"Sustained resilience as a unifying property of cities and the built environment.","authors":"Stergios-Aristoteles Mitoulis, Nadiia Kopiika, Roberta Di Bari, Sotirios Argyroudis","doi":"10.1038/s42949-026-00457-3","DOIUrl":"10.1038/s42949-026-00457-3","url":null,"abstract":"<p><p>The built environment evolves, deteriorates and regenerates over time, yet resilience is commonly reduced to discrete event-based recovery while long-term performance is treated through sustainability. This separation obscures how resilience unfolds across lifecycles. We introduce sustained resilience as a unifying property that integrates resilience and sustainability, capturing the cumulative and adaptive capacity of the built environment and cities to maintain function, learn from disruption and evolve through successive cycles of change.</p>","PeriodicalId":74322,"journal":{"name":"npj urban sustainability","volume":"6 1","pages":"114"},"PeriodicalIF":10.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13518238/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148842391","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}
npj urban sustainabilityPub Date : 2026-01-01Epub Date: 2026-01-08DOI: 10.1038/s42949-025-00320-x
Florencio Campomanes V, Angela Abascal, Lorraine Trento Oliveira, Monika Kuffer, Anne M Dijkstra, Alfred Stein, Mariana Belgiu
{"title":"Whose city is it? Mapping perceived urban livability with citizen-guided AI.","authors":"Florencio Campomanes V, Angela Abascal, Lorraine Trento Oliveira, Monika Kuffer, Anne M Dijkstra, Alfred Stein, Mariana Belgiu","doi":"10.1038/s42949-025-00320-x","DOIUrl":"10.1038/s42949-025-00320-x","url":null,"abstract":"<p><p>Urban livability is shaped by dominant values, often economic or aesthetic, and power dynamics that often overlook the lived experiences of deprived urban area (DUA) residents. As a result, conventional livability indicators risk reinforcing existing inequalities unless these are grounded in inclusive and participatory approaches. To address this issue, we developed lightweight deep learning models - 'AI-voters' - trained on livability preferences from both DUA residents and city planners, using open-source satellite imagery. Applied in Ghana's Greater Accra Metropolitan Area, our approach reduced data requirements to map urban livability by 90% through a two-step urban form sampling strategy that enabled scalable participatory mapping. Training separate 'AI-voters' for planners and DUA residents revealed systematic differences: planners not only disagree among themselves but also consistently assign higher livability scores and overlook the preferences of DUA residents, such as avoiding coastal area exposure. The AI-voters mirrored human-voter behavior based on physical urban features such as greenery and building density, especially when trained on the preferences of DUA residents, demonstrating their potential as scalable proxies for local insights. These results highlight the importance of integrating community perspectives into AI models trained to map urban livability to expose hidden spatial inequities and promote more inclusive urban development.</p>","PeriodicalId":74322,"journal":{"name":"npj urban sustainability","volume":"6 1","pages":"16"},"PeriodicalIF":10.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12823399/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146055109","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}
npj urban sustainabilityPub Date : 2026-01-01Epub Date: 2026-02-04DOI: 10.1038/s42949-026-00348-7
Maoran Sun, Ce Hou, Qiaosi Li, Fan Zhang, Ronita Bardhan, Qunshan Zhao
{"title":"Deciphering exterior: building energy efficiency prediction with emerging urban big data.","authors":"Maoran Sun, Ce Hou, Qiaosi Li, Fan Zhang, Ronita Bardhan, Qunshan Zhao","doi":"10.1038/s42949-026-00348-7","DOIUrl":"10.1038/s42949-026-00348-7","url":null,"abstract":"<p><p>In the UK, 28 million households consume 25% of the total energy and contribute to 25% of the carbon emissions. It is vital to focus on sustainability and energy efficiency within the building sector for decarbonizing purposes. However, traditional methods such as simulations or on-site inspections are time-consuming and labor-intensive. In this research, we propose a novel methodology framework for estimating building energy efficiency using only external and widely existing data. We have designed and trained an end-to-end multi-channel deep learning model utilizing high-resolution thermal infrared and optical remotely sensed images, street view images, socio-economic indicators, and building morphological data. Validated in Glasgow and Edinburgh, the model achieved F1 scores of 0.64 and 0.69. Further analyses surprisingly suggest that more deprived neighborhoods tend to have better building energy efficiency. The study highlights how widely available data and AI can provide scalable, global solutions for advancing the net-zero agenda.</p>","PeriodicalId":74322,"journal":{"name":"npj urban sustainability","volume":"6 1","pages":"38"},"PeriodicalIF":10.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12979184/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147470548","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}
npj urban sustainabilityPub Date : 2026-01-01Epub Date: 2026-02-09DOI: 10.1038/s42949-026-00345-w
Milutin Stojanovic, Thea Wübbelmann, Sirkku Juhola, Nadja Kabisch, Timon McPhearson, Veera Lipponen, Christopher Raymond
{"title":"Blind spots and actionable insights for urban governance of the climate-biodiversity-health nexus.","authors":"Milutin Stojanovic, Thea Wübbelmann, Sirkku Juhola, Nadja Kabisch, Timon McPhearson, Veera Lipponen, Christopher Raymond","doi":"10.1038/s42949-026-00345-w","DOIUrl":"10.1038/s42949-026-00345-w","url":null,"abstract":"<p><p>The critical nexus between biodiversity loss, climate change, and societal change is increasingly intertwined, requiring coordinated action, especially in urban contexts. This study examines how urban governance operationalizes the climate-biodiversity-health nexus in four European case cities through a goals-oriented framework informed by the Planetary Health approach. We conduct a qualitative analysis of urban policy documents to assess the degree of change and level of coordination across climate mitigation, adaptation, biodiversity, and health domains. While cities have employed transformative solutions like nature-based solutions (NBS), we consistently identify policy blind spots such as fragmented mid-level targets, sectoral silos, insufficient attention to indirect emissions, and reliance on soft governance tools. We conclude by offering actionable insights for transformative urban nexus governance: mainstream transformative metrics and indicators, create new institutional innovations, integrate multi-benefit NBS across sectors, expand governance toolkits to address trade-offs, and co-create a culture of innovation, learning, co-creation and leadership.</p>","PeriodicalId":74322,"journal":{"name":"npj urban sustainability","volume":"6 1","pages":"42"},"PeriodicalIF":10.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12995720/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147488699","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}
npj urban sustainabilityPub Date : 2026-01-01Epub Date: 2026-09-05DOI: 10.1038/s42949-026-00471-5
Ahmed Hazem Eldesoky, Oskar Kindvall, Meta Berghauser Pont, Ioanna Stavroulaki, Jorge Gil, Nadia Charalambous
{"title":"Building dense or compact cities without jeopardizing biodiversity: Insights from bird observations in Gothenburg, Sweden.","authors":"Ahmed Hazem Eldesoky, Oskar Kindvall, Meta Berghauser Pont, Ioanna Stavroulaki, Jorge Gil, Nadia Charalambous","doi":"10.1038/s42949-026-00471-5","DOIUrl":"10.1038/s42949-026-00471-5","url":null,"abstract":"<p><p>A central challenge for sustainable urban development is balancing the trade-offs of high urban density. We examined whether biodiversity can be supported within dense or compact urban areas by analyzing bird species richness and composition across 30 sites in Gothenburg, Sweden, representing three urban form types (two compact and one dense) and reference areas with abundant vegetation. Results showed that species richness was significantly lower in the three urban form types than in the reference areas, and species composition differed significantly between the two groups. However, there were no significant differences in species richness or composition between the individual urban form types themselves. Across the three urban form types, nevertheless, sites with larger local natural habitat area and/or better connectivity to surrounding natural habitats had higher species richness, whereas variation in species composition was associated primarily with local habitat area. This highlights that increasing habitat area remains the most effective strategy for supporting avian diversity, even in dense or compact urban areas. Species that are less common in urban areas were also recorded at sites within the three urban form types where suitable conditions existed. These results not only suggest that biodiversity can exist within dense or compact urban areas but also that it can be supported through both site-level interventions and broader-scale planning for habitat connectivity.</p>","PeriodicalId":74322,"journal":{"name":"npj urban sustainability","volume":"6 1","pages":"117"},"PeriodicalIF":10.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13545006/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148898588","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}
npj urban sustainabilityPub Date : 2026-01-01Epub Date: 2026-06-22DOI: 10.1038/s42949-026-00428-8
Lorraine Trento Oliveira, Florencio V Campomanes, Anne M Dijkstra, Mariana Belgiu, Prosper Adiku, Nicera Wanjiru, Lizian Onyango, Renaldo Flor, Deyril Ibraimo, Bastian van den Bout, Jaap A Zevenbergen, Monika Kuffer
{"title":"Exposed yet unmapped: evidence of differential flood exposure in deprived urban areas using citizen science.","authors":"Lorraine Trento Oliveira, Florencio V Campomanes, Anne M Dijkstra, Mariana Belgiu, Prosper Adiku, Nicera Wanjiru, Lizian Onyango, Renaldo Flor, Deyril Ibraimo, Bastian van den Bout, Jaap A Zevenbergen, Monika Kuffer","doi":"10.1038/s42949-026-00428-8","DOIUrl":"https://doi.org/10.1038/s42949-026-00428-8","url":null,"abstract":"<p><p>Rapid urbanization in Sub-Saharan Africa (SSA) has intensified flood risks, disproportionately affecting deprived urban areas (DUAs). Yet, these areas remain systematically unmapped in existing assessments, particularly in data-scarce environments. This study is among the first to center DUAs within a comparative flood exposure assessment across SSA cities, while integrating a lightweight low-cost flood model, global remote sensing datasets and citizen science methods. We find that DUAs are up to 200% more exposed to flooding, with frequent shallow floods (up to 10 cm) causing significant, yet often overlooked, impacts. Of these, over 50% concern property damage, disease outbreaks and infrastructure failures. Surprisingly, secondary cities sometimes surpass primaries in absolute exposure. We also highlight the spatial biases from built-up surface datasets, in turn overestimating exposure in peri-urban areas and omitting dense DUAs. Our findings challenge conventional ways of assessing flood risk and emphasize that local knowledge is indispensable in fostering urban resilience.</p>","PeriodicalId":74322,"journal":{"name":"npj urban sustainability","volume":"6 1","pages":"127"},"PeriodicalIF":10.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13649584/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149171522","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}
npj urban sustainabilityPub Date : 2026-01-01Epub Date: 2025-11-29DOI: 10.1038/s42949-025-00311-y
Blanca Anton, Andy Haines, Rosemary Green, Nienke Meinsma, Tamzin Reynolds, Sarah Whitmee
{"title":"Pathways to health: Reporting on health co-benefits from urban climate mitigation action varies by sector.","authors":"Blanca Anton, Andy Haines, Rosemary Green, Nienke Meinsma, Tamzin Reynolds, Sarah Whitmee","doi":"10.1038/s42949-025-00311-y","DOIUrl":"10.1038/s42949-025-00311-y","url":null,"abstract":"<p><p>Well-designed city actions to reduce greenhouse gas emissions can also deliver substantial near-term health co-benefits. Improved understanding and reporting of the health benefits from climate mitigation can aid efforts by cities to design and deliver healthy, equitable solutions to the climate crisis. Using global data from the 2022 CDP-ICLEI Track cities questionnaire, we analysed factors that may influence the awareness and identification of health co-benefits from climate mitigation. Actions from the transport and AFOLU sector were five to eight times more likely to report health co-benefits than other sectors, regardless of which region the action was undertaken. There was no significant difference between actions in the pre-implementation stage compared to actions that were underway. The findings highlight the need to raise awareness about the potential health benefits linked to climate mitigation among urban policymakers across all sectors to help deliver an equitable transition to a healthy, net zero future.</p>","PeriodicalId":74322,"journal":{"name":"npj urban sustainability","volume":"6 1","pages":"9"},"PeriodicalIF":8.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12795749/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145971374","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}
npj urban sustainabilityPub Date : 2026-01-01Epub Date: 2025-12-14DOI: 10.1038/s42949-025-00310-z
Marta Olazabal, Andressa V Mansur, Samraj Sahay, Laura Helmke-Long, Massimiliano Granceri Bradaschia, Ane Villaverde, Leire Garmendia, Prince Dacosta Aboagye, Ayyoob Sharifi, Obed Asamoah, Patricia Mwangi, William Lewis, Borja Izaola, Ellie Murtagh, Ira Feldman
{"title":"Conventional approaches to indicators and metrics undermine urban climate adaptation.","authors":"Marta Olazabal, Andressa V Mansur, Samraj Sahay, Laura Helmke-Long, Massimiliano Granceri Bradaschia, Ane Villaverde, Leire Garmendia, Prince Dacosta Aboagye, Ayyoob Sharifi, Obed Asamoah, Patricia Mwangi, William Lewis, Borja Izaola, Ellie Murtagh, Ira Feldman","doi":"10.1038/s42949-025-00310-z","DOIUrl":"10.1038/s42949-025-00310-z","url":null,"abstract":"<p><p>Measurement is essential for effective adaptation management and operation, and indicators and metrics (I&M) have a pivotal role. Surprisingly, systematic efforts to assess advances in the provision of adaptation I&M are scarce, and those that do exist often lack in-depth analysis of the types, characteristics, and applicability of the collected information. Here, we analyse 137 publications and 901 I&M sourced in the scientific literature (2007-2022) to measure adaptation to climate change in urban areas where governments are increasingly placing efforts to prepare populations and infrastructures. A lack of common terminology, standardisation, and guidelines has resulted in a field that is complex to track and understand. This complexity has led to a fragmented methodological landscape, marked by diverse, context-dependent, and occasionally conflicting approaches to the development of I&M. We argue that conventional approaches to I&M are largely inadequate and must better emphasise quantifiability, long-term assessment, and alignment with policy objectives.</p>","PeriodicalId":74322,"journal":{"name":"npj urban sustainability","volume":"6 1","pages":"8"},"PeriodicalIF":8.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12795751/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145971393","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}