so there's just been a global warming which makes everything hotter and then a heatwave which makes everything hotter hotter and anyway it turns out this is the perfect time to do work inside the cryochamber because it's only -100C so hypothermia takes more than instantly to set in
plus the cryochamber and the freezer are the only places on the entire map where you don't get heatstroke. cryochamber causes hypothermia, which is not ideal, so everyone's spending a lot of time in the freezer. built an emergency hospital in there too because the normal hospital is too hot to recover from heatstroke