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5/14/2016 by mdc
https://www.weforum.org/agenda/2016/02/4-billion-people-face-severe-water-sca...
World Economic Forum Global Risks Report 2016, indicates that water crises are one of the three biggest challenges we face. A new study has backed up these findings, estimating that 4 billion people or two-thirds of the global population are facing water scarcity.

This figure is bigger than previously thought(?). In the past, studies looked at water scarcity on an annual basis. They concluded that between 1.7 billion and 3.1 billion people were affected. This latest study instead examined water scarcity on a monthly level, which gives a more accurate reflection of just how severe the problem has become. Water scarcity has become a global problem affecting us all, the authors point out.

Nearly half of the people suffering from water scarcity live in India and China; around the world, close to half a billion people face water scarcity throughout the year. The study also focuses on other regions, such as parts of the U.S., Australia, Europe and the Middle East.

Does this report consider groundwater that must be drilled and wells installed? Some regions gave groundwater in sands, sandstones, and limestones. Other regions have groundwater in hard rocks (igneous and metamorphic rocks having fractures, joints, etc,) but still available groundwater.

For a review of these areas, see the classic UNESCO report ...

https://www.academia.edu/12455567/Groundwater_in_Hard_Rocks_Igneous_and_Metamorphic_in_the_World_-_1984




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