The World Bank report Unlivable: Confronting Extreme Urban Heat in Latin America and the Caribbean warns that climate change—combined with the urban heat island effect—is intensifying thermal risks in one of the world’s most urbanized regions, where 82% of people will live in cities by 2025. Millions of residents live in precarious housing with poor insulation and limited access to cooling. This report analyzes projected temperature increases and their impacts on health, infrastructure, and urban economies in Latin America and the Caribbean. It also proposes urgent actions to mitigate heat effects, protect the most vulnerable, and strengthen the climate resilience of cities across the region.