The Importance Of Water, Food, Energy And Environment

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Water, food, energy and environment are inextricably linked. Water is known as an input for producing agricultural goods in the fields and along the entire agro-food supply chain. Although it is renewable, water does not have substitutes or alternative. Agriculture consumes approximately 3100 billion tons of water, accounting for about 71% of fresh water produce today for the production of approximately 2.5 billion tons of food. Agriculture is currently the largest user of water at the global level. The food production and supply chain accounts for about 30% of total global energy consumption. Rice and wheat are the staple food in South Asia. It is about 50% of dietary energy comes from these two crops. However, these crops need about 1000 tonnes of water to produce 1 tonne of grain (Brown, 2009). Their production depends on the availability of water in the dry season and irrigation facilities. Water and energy are linked. Water is essentials for the production, distribution and the energy used. Energy is crucial for the extraction and delivery of safe drinking water. Water and energy can bring economic growth and improvements in human health. Many growing cities in developing countries already face the problems that are related to water and energy. Energy cost is usually the major expenditure for water and wastewater utilities and energy losses and improve efficiency can result in substantial energy and financial savings. The future water and energy intake of a new or

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