ELI5 Cloud Seeding - can it solve drought issues?

Why can't we seed clouds to solve California's drought problem? How does seeding clouds even work? Which countries and states have used the technology? Who legally owns a cloud?   ... We explain like i'm five!   Thank you to the r/explainlikeimfive community and in particular the following users whose questions and comments formed the basis of this discussion: grenata, ratelslangen2, irwin96, drkobbe, kaseyB, steavee and shaggorama To the ELI5 community that has supported us so far, thanks for all your feedback and comments. Join us on Twitter: https://www.twitter.com/eli5ThePodcast/ or send us an e-mail: [email protected]