A heat wave that has stifled the southern tier of the U.S. for weeks has expanded into the Plains, Midwest and now the Mid-Atlantic and Northeast on Thursday, triggering heat alerts for over 227 million people, according to the National Weather Service.
I recommend you to read Metro 2035 if you haven’t yet. It really expands on the “shelter” aspect in a most devious way. No wonder the author isn’t likes by the russian authorities.