Arizona and the entire South West don't have a drought problem. They have an aridification problem. While this canal project is a good move in general and we should have been doing it years ago, there is no solving the over-population of a desert. One look at Colorado River basin and its reservoirs is enough to know there is nothing we can do to fix it.
Because entrenched, and exceptionally wealthy interests. Reading about how about in CA there are tons of Colorado River fed foreign owned farms growing alfalfa to export to the middle east is the definition of capitalist success...the profit of a commodity has been made the most efficient; acquired cheaply for something otherwise impossible with international arbitrage as the medium.
We should probably update the dictionary so the word 'greed' is synonymous to dumb, stupid, ect. Cuz it sure seems that greedy people just have a super low IQ.
Yeah... but sometimes you've gotta accept that a band-aid is all you can do. While this doesn't fix the underlying problems, if it works it'll provide more water and low carbon energy, which is better than nothing.