@Elektrotier certainly poverty is a big factor when it comes to vulnerability to heat, but so is infrastructure and social cohesion. Canada is very vulnerable to sudden extreme heat because they never have that normally, so they don't have AC or experience in dealing with heat. Meanwhile, India has tight social structures that means the most vulnerable--the elderly--often get looked after more than, say, in France. But it's all going to get worse. Much worse.

@RnDanger