> Usually in France while we have some very hot days once the sun goes down temperatures drop to the low 20s or even high teens so we can open the windows and our homes cool by heat exchange and it isn't too uncomfortable (without AC).

IMHO this kind of thinking contributes to the problem. Again, IMHO, what you all should be saying is this:

> in France we *used to be able to* open the windows and our homes cool by heat exchange and it wan't too uncomfortable (without AC). *now we have* nights where it is still 28 or 29 degrees at 2am meaning it is still hotter outside than inside (indoor temperatures in my home without AC on is usually 25-26 even when it is high 30s outside) so opening a window just lets in warmer air. Without some kind of air cooling you end up with a hotter ambient temperature in your home which is horrible night after night after night.

This isn't like summer, where it's hot, but after a few months you go back to fall and winter. This is like history, where things happened one way in the past and they won't be like that again.

> It is changes like we see here that worry me a lot for the future my son will be living in when he is my age. Really sorry state the world is in these days :(

Big part of why I'm not having kids. Even if I wanted them for my own sake, I don't want to bring people into the world as it is today, let alone whatever it'll be in 20, 50, 100 years.