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State Of Climate Services Report 2021: WMO

State Of Climate Services Report 2021: WMO:

The World Meteorological Organization (WMO) released the State of Climate Services report 2021. It focuses on Terrestrial Water Storage.

  • Earlier, on water day (22nd March), in a report released by the United Nations Children’s Fund (UNICEF), one in five children worldwide reside in areas of high or extremely high water vulnerability.

Terrestrial Water Storage (TWS):

  • TWS is the sum of all water on the land surface and in the subsurface, i.e. surface water, soil moisture, snow and ice and groundwater.
  • Water is a key prerequisite for human development. But only 0.5% of water on Earth is usable and available as freshwater.
  • Water resources across the world are under tremendous pressure due to human and naturally-induced stressors.
  • These include population growth, urbanisation and decreasing availability of freshwater.
  • Extreme weather events too have been responsible for the pressure on water resources realised across sectors and regions.

Global Scenario:

  • TWS dropped at a rate of 1 cm per year in 20 years (2002-2021).
  • The biggest losses have occurred in Antarctica and Greenland.
  • But many highly populated, lower latitude locations have also experienced TWS losses.