Water, Water Nowhere
When it comes to massive shortfalls, it's best to think one step ahead.
You're no dummy. You read the newspapers. You know that the next global conflict won't be over food, oil, or land; it'll be over water. That's why you've begun stockpiling water with a Winix 50-pint Dehumidifier -- because in the land of the thirsty, the moist man is king.
Just think, there's water all around you right now. It's called humidity, and pretty soon it will be like evaporated gold. While everybody else scrambles over the last bits of mugginess, you and your Winix Dehumidifier will be laughing all the way to the bank.
Stockpiling water for a future catastrophic shortage is easy: Just put your Winix in the mustiest room in your house, excavate a giant subterranean lakebed underneath your yard, and set the pump to sluice water into it.
Just set it and forget it!
Come 2045, you'll be sitting pretty on top of a vast aquifer while geopolitical strife rages around you. Pour yourself a full glass of water. Cheers!