[Red Badger]

There was no shortage of water on Dune. The Fremen had billions of gallons sequestered in Quanats under ground.................

[alexander_busek]

There was no shortage of water on Dune. The Fremen had billions of gallons sequestered in Quanats under ground

That's a shortage.

The Jacqueline Kennedy Onassis Reservoir in Central Park has a capacity of more than 1 billion US gallons.

If that was all the available / accessible water on Earth (even if we had a population of only, say, 50 million)...

Regards,