writing- Misure of water in town and cities
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The responsible use of water resources is one of the main challenges human beings face nowadays. The waste of water in the cities is, therefore, a big problem. The Organization for Economic Co-operation and Development (OECD) conducted a report on water wastage in a selection of 48 cities around the world based on water safety, supply, sanitation, wastewater management, drainage and treatment criteria. On a planet where water scarcity affects over 40% of the world's population, reducing unnecessary water usage is imperative to meet the sixth Sustainable Development Goal.
The main cause of water waste in cities is often poor infrastructure, although many other factors influence the scarce use of water. In Mexico City, for example, where almost half of the water is wasted, poor water quality, frequent floodings, lack of irrigation (irrigation systems), an obsolete pumping system - up to 70 years old in some sectors and manufactured with materials classified as carcinogenic by the World Health Organization (WHO)- frequent leaks and poor utilization of rainwater combine.