If it's shtf, I will leave for the reservoir, where I have a dugout and cached goods. If it becomes a "normal times" issue, I will move elsewhere, dig a well, set up a desalinizer or condenser machine, etc. The world has 2x or more too many people already, and we are doubling that every 35 years. Nature is going to come up with a pandemic that knocks our species back by 99%, and soon, too. That's the way it always happens, with all species, when they overpopulate to the extent we have done. People just INSIST on having too many kids. Now, and for the forseeable future, 2 is too many.