1 – INTRODUCTION
Water availability critically influences human well-being and directly affects ecosystems and the environment. Water supply and demand issues are especially more complicated in areas of rapid urban and population growth. Projections say that 46 to 52 countries and a total population of 3 billion people will be water stressed by 2025 (Rosegrant, 1997). And to increase a little bit more the complexity, there is the fact that water availability is not homogeneous. Water is irregularly distributed and, consequently, water problems are region-specific.
Water supply and demand problems usually fall into the wicked problem category. Their complexity is based on the fact that they have many interdependencies, are multi-causal, and have no clear solution. Also, water problems involve changing behaviour and usually are associated with political decisions and planning efficiency. There is usually a conflicting interest problem, meaning that the “solution” to one party can be a “problem” for others (Freeman, 2000).
The aim of this study is to understand the social, economic and biophysical aspects of this issue and the interactions between them. Water scarcity can be either seen as physical or economic (Ricci et al, 2000). Physical scarcity has to do with the biophysical aspects of the issue and fall outside of human control. Economic scarcity is associated with the technology available and costs associated with the process of exploitation, treatment, distribution, and reuse of water. The analysis will consider both economic and physical water demand and their interactions.
2 – BIOPHYSICAL ASPECTS
Water resources are basically extracted from two sources: surface- and ground-water. The primary source that supplies ur...
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Fros, Douglas. "The Water Demand Revolution." Planning 79.7 (2013): 12-17. Academic Search Premier. Web. 2 Dec. 2013.
“Over the last three decades, China has experienced breakneck growth, changing from a poor, agricultural country to one of the leading industrial powers of the 21st century. Yet water scarcity has the potential to undermine China’s transformation.”, BGE DBQ Online 2017. Water is a very important natural resource that the United States thankfully has access to everyday. In China, however, the economy is being plagued with an extreme growing crisis of water scarcity which has major complications on daily life. Three major factors that impact and make the situation in China worse is the growth in water pollution(document E), global warming and its effect on the water supply(document A), and lastly the way water is used throughout China( Document
Water shortage in arid and semi-arid regions and declining its availability to a crisis ...
I also learned of four different sustainable solution to the water supply crises which include; conservation, reservoirs, aqueducts and rainwater harvesting. (Dorsner,
The human race needs three things to survive; air to breathe, food to eat, and water to drink. A large majority of the public thinks these resources are infinite and plentiful. What they fail to realize is that they are not infinite, air can become polluted, food can carry pesticides, and water can transmit diseases very easily. In order to keep these necessities safe, many companies are taking the initiative by trying to cut down on pollution and stop using harmful pesticides. Water, however is not getting enough attention, especially in urban areas. Framework exists for these urban areas to be able to have successful water management, but some countries cannot afford these ideas or simply do not want
In our generation of new technologies and high civilization it is hard to believe that our World is in Water crisis. This crisis is affecting not only low-developed parts of the world but also it affects high-developed countries, about one third of the humanity suffers from the scarcity of water (Molden 2010). One of the main causes of it is overpopulation. In increasing water demand water sources which we have now are not able to renew themselves. Another factor of water scarcity is not economized water consumption. Nowadays most of countries are beginning to realize that solving the problem of scarcity of water is very crucial. One of them is Mexico where water shortage is the national problem.
This is because only a small part of the population, particularly in developing countries, have access to water of acceptable quality. It is estimated that in some countries only 20% of the rural population has water of satisfactory quality. Based on these statistics, it is clear the urgent need for awareness about caring for water use. Almost without realizing it, we are seriously jeopardizing this essential resource, not for us but for our children's children and their generations, aware that in other parts o...
Introduction on Water It covers 70% of our planet, makes up 75% of our body, it is necessary for survival and it is declining at a rapid rate (http://www.sscwd.org). It is water. Unfortunately, clean water is rare, almost 1 billion people in developing countries do not have access to water everyday. “Yet, we take it for granted, we waste it, and we even pay too much to drink it from little plastic bottles” (The Water Project). Use of earth’s natural resources should be seen as prosperity, although it is taken for granted, every aspect of daily life revolves around the environment, forcing water conservation to be necessary for future on this planet.
The main sources of water in Bhutan are natural spring water, natural rivers/streams and deep groundwater and water quality is reported as first class conditions expect at localized urban areas. Four major river sinks are Amochhu, Wangchhu, Punatsangchhu and Manas.
Freshwater is quite scarce, but it is even scarcer than one might think: about seventy percent of all freshwater is frozen in the icecaps of Antarctica and Greenland and is unavailable to humans. Most of the remainder is present as soil moisture or lies in deep underground aquifers as groundwater. It is not economically feasible to extract this waster for use as drinking water. This leaves less than one percent of the world’s fresh water that is available to humans. It includes the water found in lakes, reservoirs, groundwater that is shallow enough to be tapped at an affordable cost. These freshwater sources are the only sources that are frequently replenished by rain and snowfall, and therefore are renewable. At the current rates of consumption, however, this supply of fresh water will not last. Pollution and contamination of freshwater sources exacerbate the problem, further reducing the amount of freshwater available for human consumption. Something must be done if humans want to even survive in the near future: the lack of clean drinking water is already the number one cause of disease in the world today. The first step is worldwide awareness of the water crisis: governments and the citizens they govern worldwide need to know about this problem and be actively involved in solving this problem.
Cunningham, William, and Mary Ann Cunningham. "Chapter 18: Water Pollution." Environmental Science. ; A Global Concern. 12th ed. McGraw-Hill Higher Education, 2011. 396-421. Print.
The problem of water scarcity has increasingly spread throughout the world as of yet, The UN reports that within the next half- century up to 7 billion people in 60 countries which is more than the whole present population will face water scarcity (Sawin “Water Scarcity could Overwhelm the Next Generation”). As well the demand for freshwater has tripled over the past 50 years, and is continuing to rise as a result of population growth and economic development. 70% of this demand derives from agriculture which shows the influence of water on food supply globally as well not just drinking water (Sawin “Water Scarcity could overwhelm the Next Generation”). But increasing water use is not just a matter of the greater number of people needing it to drink and eat; it also comes from pollution and misuse of water supplies, by either dumping or runoff of bacteria or chemicals into water. This also “causes other pollutions as well such as soil and air pollution, accelerating wetland damage and human caused global warming” (Smith and Thomassey 25). According to UN report, recent estimates suggest that climate change will account for about 20 percent of the increase in global water scarcity in coming decades.
Freshwater in the world makes up only a small portion of the water on the planet. While the percentage of water in the world is nearly 70%, only 2.5% is consumable. Even further, only 1% is easily accessible to basic human needs. According to National Geographic, “by 2025, an estimated 1.8 billion people will live in areas plagued by water scarcity, with two-thirds of the world's population living in water-stressed regions as a result of use, growth, and climate change.” With this current trend, water will become more immersed in environmental, economic, political, and social changes.
Water is an irreplaceable natural resource on this earth which comprises marine, estuarine, fresh water (river and lakes), ground water across coastal and inland areas. Even though there is huge water resource in this world, about 97% of water is salt water (marine) only 3% is fresh water. And in this small fraction of fresh water a major part is in the form of ice in polar region. So just 0.003% is in the form of ground water and surface water which we can use.
Water is an integral part of not only human beings but all other creatures in the world. We use it every day for different purposes such as domestic, agricultural and industrial. Water has always been a prestigious resource. However, the majority of people do not appraise water’s worth since they do not face water scarcity; whereas, in third world countries it is one of the most serious problems. Nearly 2.4 billion people have a lack of water resources in the world, shows the investigation done by the Pacific Institute, an Oakland, California-based non-profit scientific research group. Moreover, every year this number is growing gradually and more people are suffering (Bloomberg News, 2010). There are certain causes which deteriorate current situation. The most influential reasons are global warming, pollution by human-beings and overpopulation. It is known that India is one of the countries which face water scarcity so this essay will consider the possible ways of solutions of water shortage in India.