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Water Scarcity And Its Effects On Our Lives

Decent Essays

Water is the basis of all life on earth and in the last few centuries human activities have degraded our fresh water supply more than any time in history. The Earth needs it to keep its moderate temperatures, vegetation needs it for its cohesive nature, and as a solvent it’s part of almost every chemical reaction inside our bodies. Even our own cells are made of 70% to 95% water. The increasing pollutants we have introduce into our water supply inhibits the properties of water that are so vital to life. Almost all great civilizations in history have built their cities near clean fresh water sources. For example, Ancient Rome was built near the River Tiber, and they eventually ended up polluting the river so much that they had to build …show more content…

With an increase in population, the U.N. Food and Agriculture Organizations estimates that food production will need to increase by 70% by the year 2050, placing a greater strain in our water supply. Today 70% of fresh water consumption comes from agriculture (United Nations World Water Development Report (UNWWDR), 2008), up to 90% in developing countries (Fry, 2009). The problem with increased agriculture production is the inefficient irrigation techniques that are use, up to 15% to 35% of irrigation is unsustainable (Fry, 2009). Meaning that we are using more water than we have to. For instance, one of the most striking events that deals with water over extraction has been the shrinking of the former fourth largest lake in the world, the Aral Sea in Asia. Aral Sea has been so heavily extracted for water since the 1960’s that today only 10% of it remains and it is predicted to disappear altogether by 2020 (Macklin and Aladin, 2008). Although 70% of the surface of our planet is cover by water only 2.5% is fresh water. Most of this fresh water is inaccessible for human consumption with most of it being trap in glaciers or underground (Fry, 2005). Earth has been able to clean and replenish our fresh water supply that humans and animals have used for millions of years. The Earth uses a natural cycle that is called the hydrologic cycle of water that includes: changes in state, precipitation, condensation, the atmosphere, evaporation, infiltration, runoff and

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