Water in the world!

1386 milyon km3 of all water in the world is salt. In other words 96% and above is salt. Left behind 4% is freshwater resources and about 70% of these freshwaters are ice. The other 30% of freshwaters are underground waters. Surface freshwater resources like rivers, lakes compose 1% and below of all water of the world. In other words the freshwater in the world is very limited.

Unfortunately water consumption increased much more in the past 50 years, although there are limited water resources in the world. While total water consumption was 1000km3 in 1940, this amount of consumption was doubled in 1960 and in 1990 it reached 4130 km3.

If we put the countries in order according to water havings; we accept the countries which has average useable water for a person in a year below 1000m3 are “water poor”, which has average useable water for a person in a year below 2000m3 are “water fewness”, which has average useable water for a person in a year above 8000-10 000m3 are “water rich”.

Water consumption for a person in the world is about 8000 m3 in a year. 1,4 billion of people in the world can’t drink enough water. 2,3 billion of people are missing the healty water. According to some guesses, 3 billion and above people in the world will be faced with water famine in 2025 and following years. Additionally, the countries that will be in water distress's number will be 54 in 2050.

resource: picture 1(top-rgiht): www.iyonizesu.com, pic 2(bottom-left): www.aski.gov.tr and here