By CHIARA TERZUOLOExtreme heat, heavy rain and other urban crises brought about by climate change are now a global issue and have been at the forefront of everyone’s minds this summer 2026, with Europe and the United States hit by a historic heatwave. France recorded one of the hottest days since statistics began in 1947, with temperatures exceeding 44°C in some locations, and the country's public health authorities reporting over 2,000 excess d…