Heat waves and urban vulnerability: climate shelters, public services and innovative solutions. Lessons from Barcelona

Future projections indicate a global increase in heat waves, especially in urban areas due to climate change and the heat island effect, leading to adverse human, economic, and environmental outcomes. Cities worldwide respond by integrating climate mitigation and adaptation measures. While long-term strategies dominate research, this paper explores the increasing interest in short-term solutions, examining the Barcelona Climate Shelter Network. Investigating climate shelter initiatives, it highlights the use of public or private spaces for respite during extreme heat. This model offers insights for other European cities facing escalating heat waves, encouraging reflections on reshaping public services amidst climate crises.