What is the top water?

water to the top is a term created to describe the risk of water deficiency due to unsustainable use of water supply. These are special concerns in hot and dry areas where water supplies are already limited and people can move to the area, which is more burdensome for water availability. Although it is not possible to occur completely fresh water, in some communities the use of water is predicted with availability and creates environmental and social problems. This term attracted public attention in 2010 as a result of a study published by hydrologist Peter Gleick, who discussed the problem of sustainable water use and maximum water. The first is renewable maximum water with reference to the use of renewable water resources such as Greeks, Lakes and Streams. These should theoretically recharge due to precipitation and melting snow unless the communities are overcome by these sources, drain rivers and lakes dry. Some communities in regions such as the American Southwest have already reached this limit.

Another form is non -renewable maximum water, which focuses on the use of resources such as underground aquifers. These take centuries to develop, and if they are exhausted, they will not replenish for many more centuries. Regions relying on such resources can intervene their limits and find that no water is available, even if residents require more water for use, such as bathing, cooking and irrigation. Other sources can be contaminated and create a situation where fresh water is present but not usable.

Ecological peak water is a point of balance, when human use of water begins to cause environmental problems, which contributes to greater damage than benefits. In this case, although more water may be available, it would not be sustainable to use these resources, as they can be needed for other things, such as maintaining plant and animal population. Using too much water can pTo develop desertification and other environmental issues.

Balance of human needs of water with environmental problems can be complicated. Acting on water rights often becomes controversial because water resources often spill over several boundaries. The actions of the inhabitants of one region may have an impact on the other, or maybe two communities will have to share the same source and may have trouble with it fairly. Reducing the use of water through protection measures is an important part of the solution of maximum water, but with increasing human population it is more demanding.