Whatever we do, let's be sure to add another 100 million people to the area in the next 10 years! That will clearly help the situation.
https://www.azcentral.com/story/news/local/arizona-environme...
and 74% of that goes to agriculture.
Western water does need to be managed and there are lots of silly water rules that should be changed. But the Mountain West drying up is just a fantasy. For weather, economics, and governance it's probably the region with the brightest future over the next 30 years.