Question

The main reason the world faces a shortage of fresh water is​

Answer 1

Because of climate change which is alternating patterns though out the world like droughts or another reason is our overpopulation

Answer 2

Agriculture consumes more water than any other source and wastes much of that through inefficiencies. Climate change is altering patterns of weather and water around the world, causing shortages and droughts in some areas and floods in others. ... By 2025, two-thirds of the world's population may face water shortages.