Water Scarcity Essay

Water is necessary for all complex life on Earth, from plants which use its molecules to synthesize energy from sun rays, to animal cells which use water molecules to repair more complex organic structures like DNA. In addition to drinking it, humans use water for sanitation, hygienics and agricultural irrigation. The multifarious and humanitarian uses for water make it especially alarming that water privatization has sharply increased in the past decades while groundwater levels have sharply…

Calories A calorie is the unit used to measure the energy-producing value of food. Theoretically, calorie is characterizes as a unit of heat measurement, in nutrition and the kilocalorie is the amount of heat required to raise the temperature of 1kg water through 1˚c. Another definition is that calorie is a unit of measurement that determines the amount of heat released in a food during metabolism. It states the energy value of a food calorie (cal) or kilocalories (kcal). The body needs energy…

limestone dissolved and stalagmites and stalactites of calcite grew. Caverns continue to enlarge as salt crystals corrode rock walls. (12) During the Miocene period (23 – 5 MYA), these events led to flora and fauna which were tolerant of heat, lack of water and alkaline soil due to calcium carbonate (limestone) and limited the diversity of species seen in other biomes.…

Food is the basic need of all living creatures in the contemporary world. From humble bacteria to human beings all are striving for food since their existence. The term food security is closely related to the availability of food stuff for the existing population in the world. The concept of food security was developed formally in 1974 in world food conference. According to FAO( FOOD AND AGRICULTURE ORGANIZATION) ), food security refers to the situation when all the individuals in the…

impedes the export of other products. As a result, these countries end up importing most products leading to massive capital flight (Ross, 2007). The extraction of oil also causes environmental degradation such as global warming and massive pollution of water and…

population was facing its greatest water crisis. Sao Paulo’s worst water shortage since 1930 in consequence of severe drought. It has been the driest on record for the past two rainy seasons. Climate change, deforestation and reduced rainfall are the reasons for the shortage of water. Why Sao Paulo is drying out? The planet is suffering the consequences of CO2 emissions due to anthropogenic activities. Drought and bad management are the main reasons for Sao Paulo’s water crisis. There is…

comprising two-thirds of the human body, water is essential to the sustenance of life (CDC, 2016a). However, only 3% of the world’s water is freshwater (WHO, 2015). Due to the limited availability of freshwater, 663 million people in the world lack access to safe drinking water (WHO, 2015). Contaminated drinking water can contain pathogenic bacteria from human and animal waste, harmful metals, and dangerous chemicals from the improper disposal of industrial wastes. Water-related diseases…

Fresh Water Problem and How to Solve It Water is a natural energy that comes from the earth and all of the living being on earth are depend on the water, without water humans and animals are dead. 75% of the surface of the earth is covered by the water, despite the amount of the water on the earth is abundant the problem is the amount of the fresh water that we have. About 97.5% of all water on the earth is salt water, this means that we only have 2.5% of fresh water left. Approximately 70% of…

important way of water-resources utilization in large rivers. Dam construction has played significant roles in flood control, irrigation, navigation, and energy supply; however, the enormous negative effects, such as landslides, ecological problems, and water quality decline, could surpass positive gains. In these days, the water has become the most important need of everyone. In the monsoon season, there is over amount of water. Because of no facility of storage of water, this amount of water…

Desalination should be the best solution to the shortage of water in arid regions. Water is the nerve of life. It affects the food, energy, environment and health of billions of people living on the planet earth. Large populations living in vast arid areas around the world suffer from water scarcity. With exceedingly limited resources of water, about 200 million people distribute the Arab countries in North Africa, and the Middle East depends mainly on fossil groundwater that is a non-renewable…