How Much Freshwater Is Found At The Earth2019s Surface?

How much freshwater is found at the Earth's surface?

 

75 % of the world are water and about 2.5 % of it are freshwater. About three-quarters of the world's freshwater is frozen in ice sheets and glaciers. Most remains  inaccessible, located in the Arctic, Antarctica or Greenland. Land-based glaciers and permanent  snow and ice, however, supply water in many countries, releasing water in amounts that vary  seasonally and over longer time periods. Because of climate change, glaciers are now being more  closely monitored.  

Surface waters, including lakes, ponds, reservoirs, rivers, streams and wetlands hold only a small  volume of the Earth's total fresh water (0.3%). Still they represent about 80% of the renewable  surface water and groundwater that is available in a given year. These water bodies perform many  6  functions in the environment, and provide people with the prime source of drinking water, energy  and recreation, as well as a means of irrigation and transport.

Lakes contain by far the largest amount of fresh surface  water. But the hydrology of only about 60% of the largest lakes has been studied in detail, leaving  much to be learned.

Wetlands, including swamps, bogs, marshes, and lagoons, cover 6% of the world's land surface freshwater.

CODE 11.22.1.11.

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