Climate factors cannot be micro-managed or reinvented which is why large human settlements set down on fertile soils close to river banks, water bodies or areas of regular rainfall.
There will continue to be water conflicts and strife at local and regional level. The clashes may perhaps scale up in seriousness, tone and frequency. The geographic location of potential conflict should remain largely unaltered. Unless the root-causes there are dealt with meaningfully to literally quench the thirst permanently.