I would say that there are no other way besides AC to cool down residences. Only building something akin to a palace with thick stone walls. But naturally, everybody cannot live in a palace. What people did before AC was invented, is to go to the river for a bath to cool down. And if you are unfortunate to not have AC in a place were you'd need it, you'll have to take a lot of showers, and drink a lot of cold water (but fridges are AC technology).
But I don't think anybody should consider themselves lucky to have AC or heating or plumbing. We're in the 21st century, these should be granted. We've moved beyond the phase of bare survival.
If you consider Northern European countries, human survival would have been near impossible there without artificial heating in the form of fire. You could say that thick fur clothes and a protein and fat heavy diet is enough, but you still need to dry your clothes somehow if it's been pouring 0 degree rain for a month straight. On the other hand, eskimos seem to have found a better technique, but I think their advantage is that they live so far North that they don't have to worry about cold rain: https://time.com/archive/6798620/science-the-cozy-eskimo/
The cool thing (hehe) with AC that few people think about is that it actually conditions the air. It's not just an air cooler, but more importantly it removes air humidity. Humidity is much more important than temperature. For example, a day with 32℃ temperature and 45% humidity will not feel too hot. You can sit in the shadow and be comfortable. But a day with 27℃ temperature and 80% humidity will be suffocatingly hot. I'm not sure why, I think it has to do with how we sweat. Or maybe that heat is conducted from the air to our bodies more efficiently in higher humidity.
If you have any suggestion for a cheaper solution than AC for keeping cool at home, I would be happy to hear. The noise of the machine can be annoying at night.
I'd like to give you a tip for reducing your heating bill there in France: Electric bed sheet/blanket. I have been using these for a decade now (where I live it gets both hot and cold). They keep you warm and comfortable all night and they use almost no electricity. I even believe they are beneficial for your health, but I cannot prove that. Been telling my European friends for years to get them, but there is great resistance. From HowStuffWorks:
"The consumption of energy depends on its wattage, typically between 15 to 115 watts. If you're based in the U.S., you might be charged around 13 cents per kWh. So, if your electric blanket consumes 100 watts and you use it for 10 hours a day, that will cost about 13 cents."
>But I don't think anybody should consider themselves lucky to have AC or heating or plumbing. We're in the 21st century, these should be granted. We've moved beyond the phase of bare survival.
I don't know what you mean with "must feel lucky" here, but on my side I do feel very privileged to live with access to these technologies. Yes, there are accessible at large scale without much people needing to struggle to obtain it, but this is not really a reason to not feel deeply grateful each time we are given the opportunity to enjoy them.
This week in Spain terrible floods ruined life of many people. While there is no doubt that many other things are coming to them as awful consequences, there is little doubt that not being able to enjoy these commodities makes it even harder.
If humanity could achieve worldwide dynamics for a few centuries without starvation at scale, genocide, large scale catastrophe significantly induced by insane urbanistic choices through careless or corrupted decision processes, and of course war, then maybe could take factually say that we "moved beyond the phase of bare survival" is a general baseline that can be taken for granted, rather than the brittle situation in which the most lucky people live in.
Regarding electric blanket, I don't see the point. During night, I generally sleep nude, and without heating the bedroom. As pointed by the reference you gave on Eskimos, keeping the body generated heat is generally more than enough to be confortable. Heating a room is only something that provides the sweet pleasure of being confortable without a jacket while moving around within the house.
But I don't think anybody should consider themselves lucky to have AC or heating or plumbing. We're in the 21st century, these should be granted. We've moved beyond the phase of bare survival.
If you consider Northern European countries, human survival would have been near impossible there without artificial heating in the form of fire. You could say that thick fur clothes and a protein and fat heavy diet is enough, but you still need to dry your clothes somehow if it's been pouring 0 degree rain for a month straight. On the other hand, eskimos seem to have found a better technique, but I think their advantage is that they live so far North that they don't have to worry about cold rain: https://time.com/archive/6798620/science-the-cozy-eskimo/
The cool thing (hehe) with AC that few people think about is that it actually conditions the air. It's not just an air cooler, but more importantly it removes air humidity. Humidity is much more important than temperature. For example, a day with 32℃ temperature and 45% humidity will not feel too hot. You can sit in the shadow and be comfortable. But a day with 27℃ temperature and 80% humidity will be suffocatingly hot. I'm not sure why, I think it has to do with how we sweat. Or maybe that heat is conducted from the air to our bodies more efficiently in higher humidity.
If you have any suggestion for a cheaper solution than AC for keeping cool at home, I would be happy to hear. The noise of the machine can be annoying at night.
I'd like to give you a tip for reducing your heating bill there in France: Electric bed sheet/blanket. I have been using these for a decade now (where I live it gets both hot and cold). They keep you warm and comfortable all night and they use almost no electricity. I even believe they are beneficial for your health, but I cannot prove that. Been telling my European friends for years to get them, but there is great resistance. From HowStuffWorks:
"The consumption of energy depends on its wattage, typically between 15 to 115 watts. If you're based in the U.S., you might be charged around 13 cents per kWh. So, if your electric blanket consumes 100 watts and you use it for 10 hours a day, that will cost about 13 cents."