AC is far more efficient than most heating methods, but there isn't the same level of censure applied to traditional heating technologies. If you listen, people talk about AC like it's inherently polluting, like it's something to moralize.

Europe historically has not been this hot, but they regularly have heat waves. I remember a 40C heat wave more than a decade ago! That's enough time to add emergency infrastructure, unless you're hoping to snuff old people. When you get your third hundred year flood in a decade it's time to update your priors.