>significant regions that require large-scale heating or air conditioning to make habitable. Some require both.
People only moved to the really hot parts of America in significant numbers because of the invention of air conditioning. They abandoned vernacular architectural techniques that kept buildings comfortable using passive cooling.
The entire population of the US could comfortably fit into the climatically mild parts. Vast areas of the US never get particularly cold in winter or particularly warm in summer.
As with suburban sprawl, the human geography of the US is built around wasteful energy use. Those trends were established over time and they can be reversed over time.
People only moved to the really hot parts of America in significant numbers because of the invention of air conditioning. They abandoned vernacular architectural techniques that kept buildings comfortable using passive cooling.
The entire population of the US could comfortably fit into the climatically mild parts. Vast areas of the US never get particularly cold in winter or particularly warm in summer.
As with suburban sprawl, the human geography of the US is built around wasteful energy use. Those trends were established over time and they can be reversed over time.
https://99percentinvisible.org/episode/thermal-delight/