How should I prepare to survive the coming nuclear holocaust? Keep in mind I'm in Australia, so there's not going to be any direct strikes on my country and I'm in the Southern Hemisphere, where the drift of radioactive fallout is still substantial, but not outright immediately lethal. The biggest challenge will be the nuclear winter, where temperatures will drop to -32C and you won't be able to grow anything without any hydroponics. How do you even survive in that situation? Because hunting will only last a short time because all the animals will drop dead, no plants will be growing.