The reason is that many world envoirements become such a places you can't live anymore.
Huge demand to get UK and usa canada real estate while it's cheap still.
Richer people will start rushing to go usa and uk those places will be fine.
worse locations will be near Equator the sea level will go higher and bigger waves.
We all know how climate changes have gotten huge effect on the environment and making it unsuitable for some people but with time people tend to love the environmental factors of such areas but it's not based on higher demands from real estate companies because mostimes when people opt in for such places the demands for it make it higher in prices and they tend look for somewhere more better of. I'm not so certain about the UK and Canada real estate measures and how they go about it in terms of environmental factors like some location close to oceans, but I think when people request for such places they prefer them so in this regards you see the real estate demanding huge money from them which is kind of not appropriate cause what if there are sudden increase in the tides and waves it'll definitely affect those areas and the people surrounded by it so real estate in such view should make things cheap for them