Drought isn’t the only reason we’re working towards being able to make water, though. The Earth’s population is constantly increasing, and the demand for water is increasing too.
Was artificial water also found?
https://science.howstuffworks.com/environmental/earth/geophysics/manufacture-water.htm
https://www.sciencedaily.com/releases/2007/10/071031125457.htm
https://www.bbc.co.uk/bitesize/articles/zkqxwty