Today I heard on the radio that only 1 litre of water will be available per person by year 2090. If there is plenty of seawater present on our earth and there are processes like desalination and distillation for making seawater usable/drinkable , then why is it said that there is scarcity of water??
There is no global scarcity of water.
Some areas have a scarcity of potable water per person.
There are several ways to fix that:
- Move the people to where there's sufficient potable water for them.
- Move the potable water to where the people are.
- Take the water that is where the people are, and make it potable.
Any of these things can be done sustainably. The technology is easy. It's a matter of taking the political decision to do the appropriate allocation of resources.
Third world populations grew faster than their carrying capacity. Thus, there are water shortages in some areas. There are also cases where one country seizes critical resources from another, e.g. Zionist control of the Jordan River and Golan water sources.
There is no real water shortage in the first world. There is only a shortage in the sense that it costs more money to water your lawn in Arizona.