eurasia review 12 September 2015, By Dr. Gursharan Singh Kainth: Water is a source of life, and while the world has a total of 1.65 billion km3 of water only 0.3 percent of this total quantity is theoretically usable as fresh water, and only 10 percent of that i.e. 0.03 percent of the world’s water is capable of economical utilization.
Of the world’s water, 97.5 percent is salt water from its oceans.
Only 2.5 percent is fresh water. Of that 2.5 percent, approximately 69
percent is frozen in glaciers and ice caps, leaving less than...read on.