It won't happen due to the staggering energy requirements to lift water up and over the Rocky Mountains. For that level of energy expenditure, it would make mo

It won't happen due to the staggering energy requirements to lift water up and over the Rocky Mountains. For that level of energy expenditure, it would make more sense to desalinate water closer to those places. What might make more sense is growing more warm climate fruits and vegetables in the Great Lakes with the abundant water supplies as the climate there gets warmer, and exporting those elsewhere. This is already happening in portions of the southern UK which are now growing champagne grapes as the traditional locations in France are getting progressively drier.