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Targeting urban sanitation: Looking behind aggregated city-level data

Peter Hawkins's picture
Also available in: Español

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.

Korea: A model for development of the water and sanitation sector

Alexander Danilenko's picture
Cheonggyecheon Stream, Seoul, Korea 
Photo: Mark Pegrum

Can a sustainable water sector be developed simultaneously with a country’s growth? Can the water sector continue to expand and achieve comprehensive coverage and financial sustainability goals to become a recognized global model for water sector management and performance? Can a country without a single sewer line in 1958 have 90 percent of its wastewater treated by 2012?

The answer is yes! The example is Korea.

New directions in the economics of agricultural water conservation

Susanne M. Scheierling's picture

A challenging area in agricultural water management is the assessment of policy and investment options in irrigated agriculture for conserving water and adapting to increasing water scarcity, in particular when the linkages to groundwater resources and their management are to be considered and incorporated. 

However, this is an increasingly important area of research for a number of reasons.  First, irrigated agriculture accounts for about 70% of global freshwater withdrawals, and is a major contributing factor to the water scarcity situation in many countries.  Second, with almost a quarter of freshwater withdrawals for irrigated agriculture being made up of groundwater supplies—corresponding to 70% of total groundwater withdrawals—, agricultural water use is also a major contributing factor to aquifer overexploitation.  And, third, surface water and groundwater are closely linked in most parts of the world, with groundwater discharge contributing to the base flow of streams and surface water contributing to groundwater recharge, and these interactions are intensified by human action, in particular water withdrawals for irrigated agriculture.  Even in cases where irrigated agriculture depends mostly on surface water, groundwater impacts therefore need to be accounted for when assessing water conservation efforts (and vice versa).

Eight things we know about water and electricity utilities in Africa

Luis Andres's picture

Infrastructure is one of the most important forces driving economic growth and poverty reduction.Yet Africa’s infrastructure networks lag increasingly behind those of other developing countries in providing telecom, electricity, and water supply and sanitation services. Two-thirds of the population in the region lacks access to electricity and five out of six people don't have access to piped water. The people and industries that do have services pay twice as much as those outside Africa, further reducing regional competitiveness and growth. As cities continue to flood with migrants looking for better economic opportunities, power and water utilities are being challenged to improve the services offered to existing and new users. Given scarce resources and competing development priorities, it is essential to establish ways of using resources (and knowledge!) more effectively. 

How we help countries track and report on the Sustainable Development Goals on water, sanitation and hygiene

Ana María Oviedo's picture
Enumerators in Ecuador collecting water sample
for water quality test.
Credit: World Bank team in Ecuador

Over the last few years, the international community has been busy establishing new indicators for the Sustainable Development Goals (SDGs), which officially replaced the Millennium Development Goals (MDGs) for the period 2015-2030. SDG #6: Ensure access to water and sanitation for all, seeks to reduce the incidence of malnutrition, communicable diseases, and inequities that are directly related to lack of access to improved sources of drinking water (affecting 663 million people worldwide) and sanitation (which 2.4 billion people still lack). This new goal implies a commitment by countries to monitor and report on their progress, similarly to what was done for the MDGs, but with much more detail.
 
From MDGs to SDGs: What’s New for Water and Sanitation?
 
Under the Millennium Development Goals (MDGs), countries were requested to report the coverage of water and sanitation, distinguishing between “improved” and “unimproved” coverage. The WHO/UNICEF Joint Monitoring Programme for Water Supply and Sanitation (JMP), established specific indicators for each, using definitions that could be captured with information from standard household surveys, which typically rely on self-reported questions on access to services collected from a nationally representative sample of households.

How can cities reduce water-energy nexus pressures?

Robert C. Brears's picture
Credit: Water & Sanitation Program 

Cities over the past century have become the driving force of the global economy. Accounting for over half the world’s population and generating around 80% of global GDP, cities provide numerous opportunities for development and growth. Cities however bring about risks and challenges to people and the environment. By 2050, demand for water is projected to increase by 55% mainly due to increased demand from urban populations. At the same time demand for energy in providing water and wastewater treatment services will increase.

Delivering water and sanitation services in Niger: challenges and results

Taibou Adamou Maiga's picture

Niger is one of the world’s poorest countries (44.5% of poverty incidence in 2014). The country faces a number of challenges in meeting the national (PROSEHA, the National Program for sustainable development) and global targets to increase access to sanitation and potable water, particularly in rural areas where the access to water is 44.2% and 7% for sanitation (2015 Ministry of Water and Sanitation data).

Overcoming these challenges while satisfying increasing demands for better or expanded service, the government began investigating options that bring in the know-how of the private sector. This has led to a growing domestic private sector provision of services in Niger.

What is non-revenue water? How can we reduce it for better water service?

Bill Kingdom's picture
A water tap in Rwanda.
Photo credit: A'Melody Lee / World Bank

Also available in 中文

In developing countries, roughly 45 million cubic meters of water are lost daily with an economic value of over US$3 billion per year.

A World Bank study puts the global estimate of physical water losses at 32 billion cubic meters each year, half of which occurs in developing countries. Water utilities suffer from the huge financial costs of treating and pumping water only to see it leak back into the ground, and the lost revenues from water that could have otherwise been sold. If the water losses in developing countries could be halved, the saved water would be enough to supply around 90 million people.

We refer to it as non-revenue water (NRW), or water that is pumped and then lost or unaccounted for.

The need to manage NRW better and protect precious water resources has become increasingly important. Non-revenue water (NRW) management allows utilities to expand and improve service, enhance financial performance, make cities more attractive, increase climate resilience and reduce energy consumption.

How can water utilities provide reliable water to poor people in African cities?

Chris Heymans's picture
Urban Africa: Rapidly growing and densifying.
Photo Credit: Kathy Eales / World Bank

Sustainable Development Goal (SDG) 6 targets “universal and equitable access to safe and affordable drinking water for all”. However, in Africa’s fast-growing cities, just accessing water is a daily struggle for many poor families. While Africa’s urban population is expected to triple by 2050, the proportion of people with improved water supply has barely grown since 1990, and the share of those with water piped to their premises has declined from 43 percent in 1990 to 33 percent in 2015. Poor families bear the brunt of these inadequacies through poor health, the long time required to collect water, and higher costs when purchasing from on-sellers’.

However, some cities stand out as exceptions. What can we learn from cities and utilities that successfully provide reliable and safe water to almost all of their inhabitants? A study I led recently, Providing Water to Poor People in African Cities Effectively: Lessons from Utility Reforms, analyzed how the water utilities in Kampala, Nyeri, Dakar, Ouagadougou and Durban achieved stand-out performance, and how this made a difference for the poor people in these cities.

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