Evaporation adds water to the atmosphere. It is a process wherein a liquid changes into gaseous form or vapor only in its surface. Evaporation depends on the amount of the water there is and the temperature that causes the water to evaporate.
A, the Aral Sea, which is a body of water that is shrinking so fast many are calling it "one of the planet's worst environmental disasters."
Answer:
Europe, Africa, and the Middle East
I don't know if you have options. But that much population growth would also increase many economic problems such as starvation, pollution, crowding, droughts, etc.