If a place is the beach when it is also difficult for there to be no sources of fresh water, such as a river, near the place for which fresh water is needed by the object for drinks, etc., and to use rain due to climate, processing sea water and using fresh water is performed.
Desalinization of sea water is called for this process.
Although seldom known about freshening of sea water in Japan, in the area where a water shortage continues, it is regarded as an always serious problem.
Technology is not developed like Japan in the Middle East, either.
If the technology which advanced nations cooperate and makes fresh water efficiently is developed, he will be able to live a life with more comfortable people.