While I have mild fantasies of living in a secret underground bunker hidden under the local park, digging underground is super expensive, requires a lot of maintenance and ventilation, and can be quite risky. Also haven't sussed out how I'd build the bunker with no one noticing.
I suspect it will become more popular as climate change drives up the cost of air conditioning. But its generally not a solution for areas exposed to high risk of flooding.
While I have mild fantasies of living in a secret underground bunker hidden under the local park, digging underground is super expensive, requires a lot of maintenance and ventilation, and can be quite risky. Also haven't sussed out how I'd build the bunker with no one noticing.
Good insulation though, I guess
I suspect it will become more popular as climate change drives up the cost of air conditioning. But its generally not a solution for areas exposed to high risk of flooding.
What about this but floating in the ocean?