In our previous blogs: Fecal Sludge Management: the invisible elephant in urban sanitation, 5 lessons to manage fecal sludge better, and A tale of two cities: how cities can improve fecal sludge management, we outlined the neglect of Fecal Sludge Management (FSM) and presented new tools for diagnosing urban sanitation challenges and how they can be used. Today, on World Cities Day, we are looking more deeply into a city — Lima, Peru, to shed light on how cities around the world can meet opportunities and address challenges of urbanization including providing improved sanitation for a rapidly growing number of urban residents.
Brian Arbogast is the Director of the Water, Sanitation and Hygiene program at the Bill & Melinda Gates Foundation.
At the Water Summit held in Budapest on October 8 this year, UN Secretary-General Ban Ki-Moon called for action on the urgent issue of sanitation to underpin human dignity and health, noting that “It is plain that investment in sanitation is a down-payment on a sustainable future. Economists estimate that every dollar spent can bring a five-fold return.”
It’s widely reported that most of the world’s population lives in urban areas. UN-Habitat estimates that 40% of urban dwellers live in slums, and that number is growing by more than 20 million people per year. Perhaps, less commonly reported is that while population is growing rapidly, urban sanitation coverage has only increased slightly.
While toilet access is generally higher in urban areas as compared to rural, sanitary conditions in urban areas are aggravated by high-density living, inadequate septage and solid waste management, and poor drainage. Recent analysis by WSP concludes that to make any significant impact it is essential to adopt a multi-dimensional approach to this complex problem. Here are five reasons why urban sanitation is about more than building a toilet.