[zz865]

That's not the whole story because when you water a farm much of it goes back into the ground or evaporates into clouds. When you flush the toilet it gets treated then sent to the ocean.

[klipt]

The ocean also evaporates into clouds doesn't it?

But we could certainly improve efficiency by recycling urban water. A lot of people jump to desalination but recycling is like desalination just with fewer solutes, so more efficient.

[reedjosh]

And nuclear plants are kinda like desalination plants on steroids, so yeah, doit!