Four Billion People Face Severe Water Scarcity. Is There Hope?

Scientists calculate that about two-thirds of the world's population faces severe water scarcity for at least one month a year. But that may not be the end of the story.

 

The details of the news can be found below:

http://www.csmonitor.com/Science/2016/0216/Four-billion-people-face-severe-water-scarcity.-Is-there-hope