Risk of worldwide water shortage is worse than previously thought

Growing risk of worldwide water shortage is worse than previously thought

According to a latest study, the increasing risk of water shortage across the world is worse than earlier thought by scientists.

As per a latest paper appeared in the journal Science Advances on Friday, over 70%, which is 4 billion people, of the population across the world stay without enough availability of fresh water for at least 30 days of the year.

As per previous studies, the number was lower, as it estimated that between 1.7 and 3.1 billion people lead their life with moderate to severe water scarcity for at least 30 days during the year.

Dr. Arjen Hoekstra of the Netherlands' University of Twente, along with other scientists used a computer model, both more precise and comprehensive as compared to earlier studies, for analyzing how widespread water scarcity is around the globe. The model took into account a number of variables such as population density, climate records, irrigation and industry.

In a statement, Hoekstra said, “So far, this kind of research concentrated only on scarcity of water on an annual basis, and had only been carried out in largest river basins. That paints more rosy and misleading picture, because water scarcity occurs during dry period of the year”.

Hoekstra added that the fact that water shortage is being regarded as a global issue has got confirmation by their research. He said that it has been some time when the World Economic Forum put the world water crisis among the top three of global issues, along with climate change and terrorism.

As per the study researchers water scarcity occurs when consumption is double as high as the existing resources. As a result, 50% of the population facing water scarcity is present in the world's two most populous countries, India and China, due to high demand.