Counterpoint: I grew up in the Midwest along the Kankakee river, and most infrastructure is built for flooding, as it can happen year round. Fresh water is not only abundant, there is often too much, and flooded fields and towns are a real problem. I am all for finding ways to move it west where people say they need it and are willing to pay a premium. Cities in the deserts of earth are more feasible than ever with ingenuity and engineering, and will probably always be much easier than building cities on Mars, for example.