AUTHOR=Zucaro Amalia , Agostinho Feni TITLE=Urban sustainability: challenges and opportunities for resilient and resource-efficient cities JOURNAL=Frontiers in Sustainable Cities VOLUME=7 YEAR=2025 URL=https://www.frontiersin.org/journals/sustainable-cities/articles/10.3389/frsc.2025.1556974 DOI=10.3389/frsc.2025.1556974 ISSN=2624-9634