Mar , 23 2021
About 4 billion people in the world face severe water shortages for at least one month each year, and about 1.6 billion people are unable to obtain clean and safe water supplies. The report pointed out that the current water shortage problem is aggravating. It is estimated that by 2050, more than half of the world's population will still live in water-stressed areas. Experts pointed out that from ...
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