Global Cities under Multiple Climate Hazards

Global Cities under Multiple Climate Hazards | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Global Cities under Multiple Climate Hazards Rita Nogherotto, Natalia Zazulie, Roshanka Ranasinghe, Trang Duong, and 3 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-9095347/v2 This work is licensed under a CC BY 4.0 License Status: Posted Version 2 posted You are reading this latest preprint version Show more versions Abstract Cities concentrate population, infrastructure, and economic assets, yet climate risk studies are still largely conducted at regional or national scales. We provide the first global city-scale assessment of climate change emergence and coastal flood exposure across ~11,000 urban areas, distinguishing four city typologies. Using the policy-relevant CORDEX-CORE ensemble of high-resolution regional models, we analyse projected climatic hazards. We show that many cities experience stronger changes than the surrounding regional average and we quantify when projected climate signals emerge from historical variability under high- and low- emission scenarios. Heat extremes have already emerged in most cities, while by 2050 all analyzed hazards will emerge everywhere. Mitigation delays emergence, with heterogeneous benefits across city typologies and continents. Coastal flood exposure is strongly shaped by socio-economic gradients, and flood protection reduces wealth-dependent disparities. These findings highlight the need to move beyond a megacity-centric view of climate risk and include small and intermediate coastal cities in global adaptation planning. Earth and environmental sciences/Natural hazards Earth and environmental sciences/Climate sciences/Climate change/Climate-change impacts climate hazards mitigation adaptation time of emergence coastal flooding urban climate Full Text Additional Declarations The authors declare no competing interests. Supplementary Files SUPPMATERIAL.docx Supplementary Material Cite Share Download PDF Status: Posted Version 2 posted You are reading this latest preprint version Show more versions Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-9095347","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":607579451,"identity":"7938f563-c234-41e4-a200-726281d68803","order_by":0,"name":"Rita 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