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A comment on Ask HN: What are you surprised isn’t being worked on more?. Parent comment
A hole in the ground is more useful for cooling in hot climates. You can use a well as a heat sink for air conditioning.
[1] https://en.wikipedia.org/wiki/Geothermal_gradient
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A hole in the ground is more useful for cooling in hot climates. You can use a well as a heat sink for air conditioning.
[1] https://en.wikipedia.org/wiki/Geothermal_gradient