Water is the most essential thing for the survival of human being. Despite the fact that water consist 71% surface of the Earth still there are some places which are running out of drinking water. 11 cities of the world are likely under the danger, where there will be no drinking water. Over one billion people lack access to water and another 2.7 billion find it scarce for at least one month of the year. According to 2014 survey of the world’s 500 largest cities estimates that one in four are in a situation of water stress.
Cape Town is the world’s first major city the modern era to face this threat. Global demand for fresh water will exceed supply by 40% in 2030, thanks to a combination of climate change, human action and population growth, says UN-endorsed projections.
These 11 cities may face drinking water crises in future:
São Paulo (BRAZIL)
São Paulo is a Brazilian city and financial capital. Sao Paulo is one of the 10 most populated cities of the world with a number of 21.7 million people. In January 2017 the main reserves were 15% below expected for the period.
India’s technical hub Bangalore is also facing water shortage problem, as it struggles to manage the water and sewage crises of the city. According to a report, the city has already loss its half of the drinking water.
China is home to almost 20% of the world’s population but has only 7% of the world’s fresh water. A Columbia University study estimates that the country’s reserves declined 13% between 2000 and 2009.
Cairo city is followed by Beijing on the list of cities facing water crisis. It’s also the destination of increasing amounts of untreated agricultural and residential waste.
Drinking water problem in Jakarta is getting worse day by day. The city’s 10 million residents have access to piped water and illegal digging of wells is rife. This practice is draining the underground aquifers, almost literally deflating them, about 40% of Jakarta now lies below sea level.
Russia is plagued by pollution problems caused by the industrial legacy of the Soviet era. 35% to 60% of total drinking water reserves in Russia do not meet sanitary standards.
Reports indicate that Istanbul is technically in a situation of a water stress, since the per capita supply fell below 1,700 cubic meters in 2016. Experts have predicted even the worse situation by 2030.
Mexico City (Mexico)
Maxico imports its 40% drinking water from distant sources, but has no large-scale operation for recycling wastewater. This is also a major reason for Water crisis in Mexico.
London is also running short of drinking water. The city mainly depends on the river The Thames and Lea and draws 80% of the water from rivers.
Tokyo has a water system that depends 70% on surface water (rivers, lakes, and melted snow). The capital of Japan is short of fresh water. 750 private and public buildings in Tokyo have rainwater collection and utilization systems to save the water.
The US state of Florida is among the five US states most hit by rain every year. An early 20th Century project to drain nearby swamps had an unforeseen result; water from the Atlantic Ocean contaminated the Biscayne Aquifer, the city’s main source of fresh water