TLDR too expensive.
It depends on the country though, countries like Saudi Arabia get most of their water though desalination.
It depends on the country though, countries like Saudi Arabia get most of their water though desalination.
For decades, the weather report in Israel would include the water level of the Sea of Galilee, the only real lake in the country and the source of most of the nation's drinkable water. It would be a major concern during droughts. Now there's so much desalinated water that some are actually being pumped into the lake, for environmental reasons.