Nature and EnvironmentWater - a scarce resourceTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNature and Environment05/21/2020May 21, 2020The UN estimates that globally over 2 billion people live in countries with high water stress. This could rise to more than 5 billion people by 2050. How much potable water is available and how can it be maintained?https://p.dw.com/p/3RIbkAdvertisement