Fact Source
< 3,000,000,000 Humans Live in Poverty World Bank Chief Economist: Kaushik Basu
>80% of wastewater worldwide is not collected or treated. Cities are the main source of the pollution. World Water Development Report, 2012
Almost 90% of diarrheal deaths are due to unsafe water, inadequate sanitation and poor hygiene. "Diarrhea: Why Children are Still Dying and What Can be Done," UNICEF/WHO, 2009.
Around 200 million hours are spent each day globally collecting water, most of it by women. World Health Organization, Evaluation of the Costs and Benefits of Water and Sanitation Improvements at the Global Level (2004)
More than 1 billion people can't access safe water. More than 2.6 billion lack adequate sanitation. Human Development Report 2006, Beyond scarcity: Power, poverty and the global water crisis
Slums will grow in size by 1 billion more people within the next twenty years. “5 Biggest Slums in the World”. Daniel Tovrov. International Business Times. December 9, 2011.
The water in slums costs more than in London. World Bank work paper 147