What did people in Phoenix do before modern heat pump air conditioning existed? Plenty of people live in hot arid places on earth. Humans have figured out pass

What did people in Phoenix do before modern heat pump air conditioning existed? Plenty of people live in hot arid places on earth. Humans have figured out passive air conditioning since prehistory: https://en.wikipedia.org/wiki/Air_conditioning#History https://en.wikipedia.org/wiki/Air_conditioning#History The problem with cities like Phoenix that is people are used to high levels comfort while building traditional structures in the middle of a desert. To cope, electricity hungry industrialized HVAC systems fight the desert weather. With a daily hot/cool cycle and modern thermal management you'd think the "passive house" would be law there by now.