https://en.wikipedia.org/wiki/California_water_wars https://en.wikipedia.org/wiki/California_water_wars They already do this. The Owens Valley was turned into

https://en.wikipedia.org/wiki/California_water_wars https://en.wikipedia.org/wiki/California_water_wars They already do this. The Owens Valley was turned into a desert to divert water to LA. There are aqueducts moving water from the Colorado River to LA and Phoenix which are both hundreds of miles away from the river. The 1974 film Chinatown was a fictionalized version of these events.