Eli5 why do we run out of water?

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I know we need to conserve water and such but why? Doesn’t it eventually flow back into the ground or evaporated and rained back down regardless of how it’s consumed, so it’s a cycle? Do we lose a bit per cycle?

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Anonymous 0 Comments

It helps to be very accurate: we run out of *usable* (safe for drinking or irrigating, not salty) water in the right *place* (where people live and work) at the right *time* (all seasons for drinking, growing season, etc.). It’s actually quite a challenge to have *enough* water that satisfies all three requirements, because once you use water, you have to transport and transform other water from somewhere else, and that can cost an insane amount.

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