The flow decrease of the Tibetan Plateau region will affect water availability for several countries, affecting a population of 1.7 billion people and a GDP of USD 12.7 trillion . In 2050, the number of people that will be living in water-scarce regions will increase to 2.7-3.2 billion . As of 2010, 27% of global population  lived in severely water-scarce areas .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report