[KingMachiavelli]

Window units can be added to basically any existing home. And like you said roofs are an option. France could afford AC with their relatively cheap power but it’s just culturally and politically unpopular despite heat related deaths being extremely high and loss productivity it’s certainly more than the cost to retrofit.

[dumah]

Paris would need significant infrastructure work across the distribution system to handle AC at NYC’s rate of 90% on summer heat wave days.