Water Scarcity is here to stay Around 2bn people, or almost one-fourth of the worlds population, live in areas where water is scarce, and the ratio is expected to climb to half by 2025. Sub-Saharan Africa has the largest number of water-stressed countries of any region. Drilling boreholes to compensate for drought is not a sustainable solution – according to a study by the National Aeronautics and Space Administration (NASA) in the US, the water table is dropping worldwide and more than half of the planet’s largest aquifers have passed the sustainability tipping point. A good few rains won’t address the problem as it takes between 500 and 1300 years to fill an aquifer. Article sourced from Finweek magazine February 2018. Author – Mariam Isa.