Seville in Spain has started naming excessive heat events like we name hurricanes. Last year Heat Wave Yago drove the city to 104F. So they’re experimenting with an ancient underground irrigation method called qanats.

https://reasonstobecheerful.world/cities-cool-down-creatively/

Learn how qanats and wind catchers work with no energy inputs to cool buildings in hostile climates.

Source: Cooling cities while the climate cooks – Darcy Hitchcock