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For example, "urban" water use in California accounts for 8-11%. I believe "urban" is both residential and industrial use combined. However, most of the pressure seems to be in reducing residential use--the goal during the last drought was to reduce residential use by 25%...which would account for at most 2% of the water consumed. Approaches included things like not giving you water at a restaurant unless you asked for it.

Of course all water use (like pollution) is driven by consumer demand, but the point is a lot of effort seems to be spent on silly things that have little impact when there are much easier targets.

Caveat: the water situation is a lot more complex than I laid it out here.

https://www.ppic.org/publication/water-use-in-california/






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