Pics: Istanbul not the only place with water crisis, know about these cities

Istanbul: It is feared that Istanbul will run out of water in just 45 days. Turkey is facing the worst drought in the last 10 years.

Sao Paulo: Sao Paulo is among 10 most populous cities in the world. The city has to use water carefully. At the height of a water crisis in the year 2015, Sau Paulo's 21.7 million residents had less than 20 days of water supply left.

Mexico City: Mexico City has about 21 million residents and water shortage is not a new thing in the Mexican capital. The crisis is so big that the city has to import 40 per cent of its water from distant sources.
 

Cairo: Cairo is situated on the banks of the Nile which was, and still is the lifeline of Egypt. But as per the UN, Cairo may face critical water shortage by 2025.

Tokyo: Tokyo gets ample rainfall, but it mostly rains in four months of the year. The water has to be collected, stored and well-utilised. If the rainy season yields less than expected rainfall, it may create a problem for residents.

Moscow: Moscow's water supply is 70 per cent dependent on surface water reservoirs. Although Russia has abundant freshwater supply, rampant pollution has meant that water doesn't meet sanitary requirements.

Jakarta: Less than half of Jakarta's residents have access to piped water. This has led to rampant digging of illegal wells. This has depleted groundwater reservoirs.

Beijing: As per the World Bank, if people in a city have water availability of less than 1000 cubic metres per person per year, that city has water scarcity. In Beijing, only 145 cubic metres of water is available per person per year. 

Melbourne: Increasing population and climate change have created problem for Melbourne. The population has risen substantially in last 20 years while the city has begun witnessing longer dry periods. Bushfires have strained the water resources.

London: London receives less rainfall than cities like Paris and New York and gets water from rivers like the Thames and Lea. Authorities think that the city will start facing water supply problems by 2025.

Miami: Although Miami and rest of Florida receive ample rainfall, a failed project resulted in contamination of main freshwater source with seawater. This, along with rising sea levels has created problems for Miami's water supply.