I've heard of desalination before and also that it's not quite efficient enough yet, but wow I never knew so many people were living off of it already, those are some fascinating statistics, and yeah.. I think if we can find a way to make that kind of technology a lot more efficient, then in the future maybe we could mostly solve the water problem we face!

However we do still have a growing population, so.. Eventually I think we need to try to find a balance and not overpopulate the planet, I personally don't think we are there yet and the planet can hold much more if things were done better, but.. In time if our population keeps exploding like it is, that could be a major problem.. Though I like your idea! I definitely think much more attention needs to be put on this kind of technology and it could save many many lives into the future! Great entry grizzman!! :)