NASA scientists used GRACE data to identify regional trends of freshwater movement, and combined that information with data from other satellites, climate models and precipitation measurements to determine the causes of major regional trends in freshwater storage.
The global shortage of fresh water in the nearby future is eminent and has become already a social and human disaster. Periodical droughts in the main foods producing regions are causing severe economic and environmental impacts. There is a big shortfall between the amount of food we produce today and the amount needed to feed everyone in 2050. There will be nearly 10 billion people on Earth by 2050. Food production depends on the availability of water.