Hoover Dam reservoir hits record low, in sign of extreme western U.S. drought

[hunter]

16. Wind and Solar are not able to provide energy 24 hours every day of the year.

This intermittency increases the cost of desalinization by a factor of two at least.

If solar panels and wind turbines were free, created by magic from coal ash, the problem is still the same. These solar panels and wind turbines must have backup power (usually natural gas, which is bad), and/or some kind of large scale energy storage, and/or the desalinization plants themselves must designed to withstand frequent idle conditions of indeterminate length. All those are expensive and some are still engineering challenges.

I think the urban and suburban people of the Phoenix area will figure out how to stay. Farmers dependent on Colorado River water, especially farmers of lower value crops that require large amounts of water, won't be so fortunate.