World Cities Report 2024 provides a wide and far-reaching analysis of the current and expected climate impacts on different regions and cities, as well as the differing vulnerabilities urban populations face as a result of poverty, inequality, ethnicity, gender, disability and other characteristics. Notwithstanding the acute financial and institutional shortfalls many face, this Report shows that cities are leading the way through innovative, community-led approaches that are demonstrating the potential of collaborative, inclusive approaches to climate action. Besides offering a sobering wake-up call on the urgent need to scale up efforts now, various chapters of this Report showcase inspiring practices and success stories that can be replicated or adapted elsewhere.