The use of AC in France is also quite foreign. None person in my family use one, despite them living all over the country. But go to the states or to India, and there is AC everywhere.
Today, there's fewer trees and a lot more AC. It's ironic because AC (especially inefficient window units) contributes to global warming in a big way.
More EU major cities are in-land than US (something about war after war), so there’s less ability to cool off.
And less moderating circulating waters.