AC isn’t bad but it encourages inappropriate construction techniques. If you’re in the southeast us, traditionally buildings would have awnings, good airflow,

AC isn’t bad but it encourages inappropriate construction techniques. If you’re in the southeast us, traditionally buildings would have awnings, good airflow, etc. Now, cookie cutter commercial construction is a sealed box that relies on HVAC for temperature and moisture control. Ditto in the north - until energy prices started climbing buildings like hotels were built as large footprint 1-2 story buildings to save capital costs. (Less structural costs, no elevator) Those buildings are impossible to afford heat nowadays, so you’re seeing more multi-story hotels and apartments.