The world is in danger of a big water shortage. Cape Town became the first city to run out of drinking water. In this post we will talk about Cape Town Water Crisis and 11 Cities May Completely Run Out Of Water Sooner.
We are confronted with the risk of depletion of drinking water as a consequence of climate change and increasing water demand affecting the world in the last period. More than a billion people do not have access to clean drinking water and 2.7 billion people suffer water shortages in minimum one month of a year. Although 70 percent of the world’s surface is covered with water, only 3 percent of the water reserves are made up of fresh water.
According to expert investigations approved by the United Nations, climate change, as a consequence of human activities and population growth, faces a major water problem in the world by 2030. According to the survey, 11 cities are trying to share the fate of Cape Town. 11 metropolitan cities facing the risk of drinking water depletion in 2030.
The United Nations defines water stress as the annual decline in drinking water below 1700 cubic meters per capita. According to official data, it is experiencing water stress in Turkey since 2016.
According to Turkish experts, Istanbul’s water shortage problem will be at a serious level by 2030. The city’s water reserve occupancy rate has dropped below 30 percent in early 2014. In the past decades, densely populated cities began to experience water stress in the summer.
2. Sao Paulo
Sao Paulo, one of the world’s 10 most populated cities, has entered the critical process. The water reservoir occupancy rate of the city, which has a population of over 21 million, has dropped below 4 percent. Today, Cape Town, suffering from water scarcity, faced a similar situation in 2015.
In Tokyo, where more than 30 million people live, there is a water system that is 70 percent dependent on surface waters. The amount of annual rainfall received by Tokyo is sufficient, but the rain is falling in just four months in 12 months. In this case, there is a drought affecting the whole year in a possible rain drought. In Tokyo, rainwater collection system is installed to store rainwater.
Miami is located in Florida, one of the five most rain-fed states in the United States. But because of the project of drying the marshes, the Atlantic Ocean contaminated the underground waters of Biscayne, the main drinking water source of the city. Although the problem was identified in the 1930s, sea water is still poured into the groundwater.
Russia, with its large surface area, has a quarter of the world’s clean water resources. However, drinking water pollution is a problem because the installation is very old.
London meets 80 percent of the water it consumes from the rivers. The amount of annual precipitation in the last period is quite low. London is getting 600 mm of annual rainfall. This is less than half of the rainfall in Paris and New York.
In the city, which has become a technology center in recent years, the buildup has increased considerably. Water and wastewater systems of the city were difficult to cope with the growth in the city. Because of the water plumbing is old, more than half of the city’s drinking water goes to waste.
The city of Bangalore has a big water pollution problem. 85 percent of the water in the lake is used only for agricultural irrigation and industrial cooling because it is polluted.
China, which hosts about 20 percent of the world’s population, has only 7 percent of clean water sources. The amount of water per capita in the Beijing city of 20 million is also very low. Serious problems will arise in Beijing if this happens.
The Nile River constitutes 97 percent of the water supply of Egypt, but at the same time untreated domestic and agricultural waste is discharged into the Nile River. As a result, water pollution is increasing. According to the World Health Organization, where there are many deaths from water pollution among Egypt’s lower middle-income countries. The UN estimates that there will be critical water shortages by 2025 in the country.
Indonesia’s capital city faced rising sea level threats. According to World Bank estimates, 40 percent of the city is below sea level. Half of the 10 million people in the city can connect to the main water while the other half is digging a run-off water well. For this reason, the underground waters are being pulled and the base is collapsing.
11. Mexico City
In the capital of Mexico, against the problem of water scarcity, only 45% of the population have water in their homes a few hours a day.
The city meets 40 percent of the water from distant sources, but there is no big operation for water recycling. 40 percent of the losses are due to problems in the water distribution network.