> A large amount of municipal/consumer water, from reservoirs, comes down those mountains - and if the coastal users reduced that demand (as they received water

> A large amount of municipal/consumer water, from reservoirs, comes down those mountains - and if the coastal users reduced that demand (as they received water, locally, from desal) then that water could either stay in the mountains or be redirected elsewhere - with gravity. Given how small of piece of the water pie municipal/household consumption is, that would have little impact on the overall water crisis, but result in a massive increase in energy consumption, which will not primarily come from renewables. Who should pay for that desalination infrastructure and the energy to run them (to say nothing of the externalities of all that extra fossil fuel consumed)?