[fredrikholm]

A great start is the Paani foundation; they move thousands of villages from water tank dependency to self-sufficiency in their annual competition.

https://www.youtube.com/watch?v=-8nqnOcoLqE

[Darmody]

That's pretty cool.

Now I wonder. With an efficient water desalinization how long would it take us to turn arid zones into complete oasis?

That would be massively helpful against global warming.