desalination exists. the key word in is cheap. It's an economic and energy problem, not a water resource problem. They get water from Colorado because its ch

desalination exists. the key word in is cheap. It's an economic and energy problem, not a water resource problem. They get water from Colorado because its cheaper than desalination. Once it's not, they will get water from the ocean. also, all water requires money / energy to process before we drink it or use it on crops. It's just a matter of much money / energy you use depending on the source.