Some facts about the Management of Global Water

According to figures released by the United Nations in 2013 in the International Year of International Co-operation in the field of water:

   
 

800 million people worldwide lack access to safe drinking water

   

About 2.5 billion have no adequate health network.

   

6 to 8 million people die every year from water-related disasters and diseases.

   

Studies show that 3.5 earth-sized planets would be needed to meet the needs of a world population a lifestyle comparable to that of Europeans or Americans.



   

In the next 40 years, the world population will increase by two or three billion people. This phenomenon will be accompanied by a change in feeding habits that will result in a 70% increase in food demand by 2050.

   

More than half of the world population lives in towns. Sometimes urban areas, where access to water and health systems are better than in rural areas, will have trouble coping with this population increase.



   

According to current trends, food demand will increase by 50 % by 2030,  and 70 % by 2050, whereas the needs of hydroelectric power and other renewable energies will increase by 60% . Both issues are related: increasing agricultural production will increase the consumption of water and energy, causing a demand for more water.



   

Water availability will decrease in many regions, however, global consumption of agricultural water will increase by 19% by 2050 . Without technological progress or political intervention, demand will increase further.

   

85 % of the world population lives in the drier half of the planet


   

Irrigation and food production are the activities that require more water. Agriculture consumes almost 70 % of water, which amount  reaches 90% in emerging countries.


   

For the last 30 years the growing consumption of meat products has been what has had more impact on water consumption, a phenomenon that will continue throughout the first half of this 21st. century, according to FAO. 3,500 litres of water are needed to make a kilo of rice, whereas 15,000 litres of water are required to produce a kilo of beef.




   

Almost 66 % of the area of Africa is arid or semi-arid. Nearly 300 million, out of the 800 million people living in Sub-Saharan Africa have scarce water resources, ie, they have less than 1,000 cubic metres per capita.


   

At least twelve countries in the Arab region and Western Asia suffer serious water shortages, with less than 500 m3 of water per capita taken from renewable sources.



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