GLOBAL EYE – How to defuse the human waste time bomb in low-income countries (Izabella Koziell, Al Jazeera)

Half of the world flushes away their sewage without a second thought as to where it goes. But for the other half of the global population, their waste can build up in pits or tanks unless they arrange – and pay – to have it removed, leaving the poorest and most isolated with a growing volume of sludge that has become a health and environmental time-bomb.