Water is a natural asset in limited supply that is essential for life on earth; therefore, saving water should be a priority for everyone. Just 2.5% of the Earth's water is fresh water, of which 69% is trapped in glaciers and ice sheets, 30% is underground, 0.7% is distributed among various repositories, while just 0.3% is in lakes and rivers, the main source used for everyday human consumption.
It is estimated that approximately 70% of fresh water is used for agriculture, 20% for industry, and the remaining 10% for domestic consumption. One of the most worrying factors is that 40% of the world's food crops are grown in areas with significant water stress, putting food supplies at risk in a large part of the world. The water footprint is the total volume of fresh water used by a company to produce its goods and services, or consumed by an individual and/or community.
Water stress refers to the difficulty in obtaining sources of fresh water during a specific period because demand for water exceeds supply. Another serious problem faced by humanity is water scarcity, which is the lack of sufficient water resources to meet water demand in a given region.
If we continue on this path and fail to implement water saving measures on a daily basis and in our activities which consume the largest quantities of water, it is estimated that there will be around 1.8 billion people will living in areas with notable water scarcity, and two-thirds of the global population will live in areas with water stress by 2025. (www.unwater.org, United Nations).
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