From hydration breaks during the FIFA World Cup to recent heat waves leaving Europe sweltering in an early summer, extreme heat is reshaping daily life. Around the world, communities are adapting in real time to increasingly high temperatures. During Europe’s heat wave in June, schools closed across the UK, while Paris opened the Canal Saint-Martin for swimming to provide relief from the heat. Elsewhere, street vendors in Mathare, Kenya, have shifted their work to the cooler evenings.