Zenderella............I'm not normally a doom-preacher type.........tho' I will offer this.
There are a lot of people out there that are not prepared to live in a post-apocalyptic-type world..............not to say nuclear war has to happen, 'cuz that would certainly foul things up.
A recent offering on one of the "reality" shows, attempted to show what would transpire if the world were to abruptly run out of oil, save government strategic reserves....................
NOT a pretty proposition, and sad to say, the death toll would be enormous, because we are basically spoiled rotten. The first winter would be a real killer.
Folks like the Amish would do quite well.