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I've seen a lot of different numbers, most of them seem to be napkin math.

Some of the comments made there are pretty interesting, specifically that it's not about the use of water its about the waste.

-Ground water can be at least partially recouped through wells. This would be a really interesting number to look up.

-Sewage water is wasted as it is dumped into the sea.

Anything else? Where does water leave the cycle?

Meat+Dairy uses the same amount of water as agriculture. People are just using almonds as a scapegoat.