Several billion people around the world live without sufficient access to clean water.
The water crisis in the Cape Town has commanded headlines around the globe when the African National Congress declared a national state of emergency as the city had expected to run out of drinking water by April.
The city of 20 million faced its own Day Zero in 2015.
China is home to 20 percent of the world’s population but has only seven percent of the world’s fresh water available.
Challenges facing Cairo include the facts that 4.5 billion cubic meters of its water come from non-renewable sources and that its main source of water, the Nile, is a transboundary river.
In Mexico City, 20 percent of residents have tap water available only a few hours a week, and another 20 percent have running water just part of the day.
The city’s 30 million residents depend on surface water for 70 percent of their supply.
They serve as the early warning systems that demand correction now and in the future.
A March 2018 report World Water Development Report from the UN said that 36 percent of the cities in the world will face a water crisis by 2050.
Everyone has the right to sufficient, continuous, safe, acceptable, physically accessible, and affordable water for personal and domestic use.” Sources: The Mirror, Water shortage crisis: Millions of residents in London and South-East urged to use “as little as possible” after extreme weather hits supplies