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Is Self-Sufficiency Possible in the 21st Century?

Prairie Eco-Thrifter

What if our water supply is poisoned or cut off; our electrical grid goes down hard for a long time; our transportation system gets interrupted and food can’t get to the stores. How would we deal with the sewage; lack of water; lack of heat; and interrupted supply of food, coffee, light, entertainment, communication ability?

Canning 100