According to a NYT story, by 2050 several former winter Olympic hosts will no longer be able to host the winter olympics again due to climate change. Some on there weren't at all surprising to me like Sochi and Garmish (I've noticed a trend in warming temps there when I compared temps between that area and Pyeongchang while they were bidding to host the 2018 winter games). Looks like maybe Vancouver should try and put in 1 more bid soon.
https://www.nytimes.com/interactive/2018/01/11/climate/winter-olympics-global-warming.html