Convenient access to safe water is central to human health and development. Water-borne disease remains a major cause of mortality and morbidity in the world, much of which could be eliminated by a combination of better water, sanitation and hygiene (WaSH). The WHO estimates that around 502 000...

Sustainable development goals (SDGs) placed access to basic services at the center of international development in 2016-2030. Out of 17 goals, five address the access of poor people to basic services: to health in SDG3, to education in SDG4, and SDG5, to water and sanitation in SDG6, to energy...