I live in a pretty hot climate, but it’s only really unbearable at times due to shoddy building and bad urban planning. Even then, summer can be difficult.
I can’t imagine what it’s like on the equator, especially in dense urban centres. What’s Mumbai, Bangkok, or Singapore like at the height of the wet season?! How do millions of people function day to day?
That’s what got me thinking about this question initially; the home construction. I understand there’s a lot that can be done tree cover, air flow, and decent thermal material, unfortunately it seems that’s often deemed too expensive in places that aren’t consistently warmer.