Publication: Greening Africa's Cities: Enhancing the Relationship between Urbanization, Environmental Assets, and Ecosystem Services
Loading...
Files in English
7,763 downloads
Date
2017-05-23
ISSN
Published
2017-05-23
Author(s)
Editor(s)
Abstract
Africa is urbanizing late but fast. This brings many benefits but, as this report shows: thus far, urbanization in Africa, unique in a number of respects, is having deleterious and largely unchecked impacts on the natural environment; the degradation of natural assets and ecosystems within African cities carries tangible economic, fiscal and social costs; there are important opportunities to change the current environmental trajectory of African cities so that they move towards a more harmonious relationship between their natural and built environments. For this to happen, focused action is necessary.
Link to Data Set
Citation
“White, Roland; Turpie, Jane; Letley, Gwyneth Letley. 2017. Greening Africa's Cities: Enhancing the Relationship between Urbanization, Environmental Assets, and Ecosystem Services. © World Bank. http://hdl.handle.net/10986/26730 License: CC BY 3.0 IGO.”
Associated URLs
Associated content
Other publications in this report series
Journal
Journal Volume
Journal Issue
Collections
Related items
Showing items related by metadata.
Publication Return on Investment in Green Urban Development(World Bank, Washington, DC, 2017-04-01)Rapid urbanisation is taking place at an unprecedented rate throughout the world, with the rate of growth often outpacing urban planning and the capacity of city managers. As a result, existing natural areas within cities,which provide a range of benefits to urban dwellersare becoming smaller and degraded, and problems such as flooding, air pollution and water pollution are becoming worse in many places. African cities often lackthe resources to deal with these problems. However, anumber of studies have suggested that investing in the maintenance or restoration of natural infrastructurein many cases may not only address given problems at comparable or lower cost than conventional engineering projects, but also generate multiple additional benefits that ultimately translate into cost savings and increased human wellbeing. Meanwhile, great strides have been made in the design of sustainable mechanisms to deal with urban environmental issues, stormwater flows and the attendant pollution problems, and management and planning of cities is increasingly taking a holistic approach that includes the use and conservation of semi-natural and natural areas within cities as part of a green urban development strategy. One of the challenges of green urban development will be to findthe right balance between ecological infrastructure(natural systems), “green” (= environmentally friendly)built infrastructure, and conventional (“grey”) built infrastructure. Dar es Salaam, located on Africa’s Indian Ocean Coast,faces a multitude of environmental problems. Prominent among them is the problem of flooding in and around the city centre, which frequently brings the city to a standstill, as well as causing infrastructural damage. Many factors have contributed to this problem, including unplanned informal settlements in the upper catchment and floodplain areas, a lack of drainage and a lack of solid waste management. The impacts of flooding are also exacerbated by high levels of pollution in the rivers, which increases the risks associated with flooding. In consultations for this study, stakeholders in Dar esSalaam identified the Msimbazi River as being amongthe most degraded ecosystems in the city and also the source of the most serious flooding problems. The aim of the study was to explore the potential costs and benefits of undertaking a green urban development approach, including catchment-to-coast restoration measures, to ameliorate flood risk in the Msimbazi Rivercatchment.Publication A Spatial Valuation of the Natural and Semi-Natural Open Space Areas in eThekwini Municipality(World Bank, Washington, DC, 2017)Durban is located within a global biodiversity hotspot, and still contains a wealth of biodiversity. Some of this is protected in nature reserves, but much of it is in private hands or in communal lands on the city’s periphery. City managers are divided over the level of attention that should be given to preserving these remaining natural areas. While it is argued that they make a significant contribution to biodiversity conservation in the province, provide valuable ecosystem services and will contribute to the city’s resilience in the face of climate change, the counter argument is that much of this area should make way for development to alleviate the escalating problem of unemployment. The study of ecosystem services and their value to society has made significant advances since an estimate was made of Durban’s ecosystem services in the 1990s using early values from the international literature. The aim of this study was to provide estimates of the value of ecosystem services provided by natural open space areas within the eThekwini Municipal Area (EMA), and to map the geographic variation in these values as far as possible so as to be able to compare both areas and types of value, using available and locally-relevant data. This study was carried out as a desktop study based on available data. Modelling assumptions were based on data from within the study area, drawing on the regional, national or international literature only where necessary. The study focused on the direct values associated with the provision of natural resources, indirect use values associated with regulating services generated by ecosystem functioning, and the amenity values generated by ecosystem attributes.Publication Evaluating the Potential Returns to Investing in Green Urban Development in Durban(World Bank, Washington, DC, 2017-04)Urbanisation is taking place at an unprecedented rate throughout the world, often outpacing plans and the capacity of city managers. As a result, natural open space areas in cities are being degraded and diminished, and problems such as flooding, air and water pollution are getting worse. The environmental problems associated with increased hardened surfaces and the loss of natural areas and ecosystem services are particularly acute in developing country cities, where a lack of regulation and resources has led to poor planning, the expansion of informal settlements in high risk, marginal areas, and the inability to adequately manage the quantity and quality of surface water flows.Durban, located within the eThekwini Municipality on the east coast of South Africa, is rich in biodiversity, but faces a number of environmental and developmental challenges. Green urban development is an approach that aims to minimize the impacts of urbanization on the environment, and tackles the core problems of pollution and waste, the consumption of natural resources, the loss of urban open space and the degradation and loss of biodiversity, as well as mitigation of the urban contribution to climate change. The aim of this study was to explore, using a case study and scenario-based approach, the potential costs and benefits of undertaking a green urban development approach to address some of the main environmental issues described above, and to explore the potential tradeoffs between different types of interventions, with an emphasis on assessing the desirable balance between engineered interventions and the conservation of natural open space areas. The study focuses on three elements of green urban development, all of which impact on ecosystems and biodiversity: sewage and solid waste management, active storm water management and the conservation of natural systems and riparian corridors.Publication A Preliminary Investigation of the Potential Costs and Benefits of Rehabilitation of the Nakivubo Wetland, Kampala(World Bank, Washington, DC, 2016-09)Rapid urbanisation threatens existing natural areas withincities and the ecosystem services that they provide. This case study forms part of a broader study that investigates the benefits of investing in Green Urban Developmentin African cities. The Kampala case study focuses on the Nakivubo wetland, one of several large wetland systems that occur within and around the city. This wetland has become severely degraded by polluted water from thecity that passes through the wetland before entering Inner Murchison Bay. However, as the city has continued to grow, pollution flows into the wetland have increased significantly, the size and assimilative capacity of the wetland has decreased, and the costs of water treatment have increased. These concerns, as well as the increasing shortage of public open space areas in the city that are available for recreation, haveled to the city’s consideration of the rehabilitation of the Nakivubo wetland, both to restore its functioning and to create the opportunity for a recreational area with associated possibilities for economic development. This study provides a preliminary evaluation of the state of the Nakivubo wetland, the potential costs and benefitsof its rehabilitation and the implications for the city’sexpansion plans. The primary objectives were defined as(1) effecting a measurable improvement of waterquality passing out of the Nakivubo wetland into InnerMurchison Bay, (2) ensuring sustainable management ofthe Nakivubo wetland, (3) reducing water quality impactson human health and (4) opening up opportunitiesfor safe recreational use of the lower wetland. One of the main challenges in achieving the above would be institutional. Greater Kampala extends well beyond the boundaries of the Kampala Capital City Authority (KCCA), which originally encompassed the entire city, and unless the KCCA area is adjusted accordingly (as has been done in other countries), the problems that will arise in a growing city will be in areas under multiple other jurisdictions.Publication A Toolkit of Policy Options to Support Inclusive Green Growth(World Bank, Washington, DC, 2012)In 2012, the Mexican Presidency of the G20 introduced inclusive green growth as a cross-cutting priority on the G20 development agenda. The second meeting of the G20 Development Working Group (DWG), hosted by the Government of the Republic of Korea, took place in Seoul the 19th and 20th of March 2012. As agreed during the first DWG meeting, this second meeting focused on the priorities for their presidency in the first half of 2012: infrastructure, food security and inclusive green growth (IGG). At its Seoul meeting, the DWG also agreed that IGG co-facilitators and relevant international organizations (IOs) should work together in 2012 to develop a nonprescriptive good practices guide/toolkit on enabling national policy frameworks for inclusive green growth to support countries who voluntarily wish to design and implement affordable and inclusive green growth policies, with the aim of achieving sustainable development and poverty alleviation. The toolkit is organized as follows. First, the necessity of applying the different tools in the context of a broad inclusive green growth strategy is stressed, and a harmonized framework combining approaches and tools identified by all four IOs is set forth. Second, the document offers an overview of key tools that can be mobilized to implement an inclusive green growth strategy. Quick technical descriptions of these tools are offered along with suggested sources for further details. Finally, capacity building and knowledge sharing initiatives are presented, with the Green Growth Knowledge Platform (GGKP) highlighted as a powerful collaborative tool to advance policies for inclusive green economies.
Users also downloaded
Showing related downloaded files
Publication World Development Report 2019(Washington, DC: World Bank, 2019)Work is constantly reshaped by technological progress. New ways of production are adopted, markets expand, and societies evolve. But some changes provoke more attention than others, in part due to the vast uncertainty involved in making predictions about the future. The 2019 World Development Report will study how the nature of work is changing as a result of advances in technology today. Technological progress disrupts existing systems. A new social contract is needed to smooth the transition and guard against rising inequality. Significant investments in human capital throughout a person’s lifecycle are vital to this effort. If workers are to stay competitive against machines they need to train or retool existing skills. A social protection system that includes a minimum basic level of protection for workers and citizens can complement new forms of employment. Improved private sector policies to encourage startup activity and competition can help countries compete in the digital age. Governments also need to ensure that firms pay their fair share of taxes, in part to fund this new social contract. The 2019 World Development Report presents an analysis of these issues based upon the available evidence.Publication Ten Steps to a Results-Based Monitoring and Evaluation System : A Handbook for Development Practitioners(Washington, DC: World Bank, 2004)An effective state is essential to achieving socio-economic and sustainable development. With the advent of globalization, there are growing pressures on governments and organizations around the world to be more responsive to the demands of internal and external stakeholders for good governance, accountability and transparency, greater development effectiveness, and delivery of tangible results. Governments, parliaments, citizens, the private sector, Non-governmental Organizations (NGOs), civil society, international organizations, and donors are among the stakeholders interested in better performance. As demands for greater accountability and real results have increased, there is an attendant need for enhanced results-based monitoring and evaluation of policies, programs, and projects. This handbook provides a comprehensive ten-step model that will help guide development practitioners through the process of designing and building a results-based monitoring and evaluation system. These steps begin with a 'readiness assessment' and take the practitioner through the design, management, and importantly, the sustainability of such systems. The handbook describes each step in detail, the tasks needed to complete each one, and the tools available to help along the way.Publication Supporting Youth at Risk(World Bank, Washington, DC, 2008)The World Bank has produced this policy Toolkit in response to a growing demand from our government clients and partners for advice on how to create and implement effective policies for at-risk youth. The author has highlighted 22 policies (six core policies, nine promising policies, and seven general policies) that have been effective in addressing the following five key risk areas for young people around the world: (i) youth unemployment, underemployment, and lack of formal sector employment; (ii) early school leaving; (iii) risky sexual behavior leading to early childbearing and HIV/AIDS; (iv) crime and violence; and (v) substance abuse. The objective of this Toolkit is to serve as a practical guide for policy makers in middle-income countries as well as professionals working within the area of youth development on how to develop and implement an effective policy portfolio to foster healthy and positive youth development.Publication Zimbabwe(World Bank, Washington, DC, 2019-03-01)This report presents an assessment of Zimbabwe’s agriculture sector disaster risk and management capacity. The findings indicate that Zimbabwe is highly exposed to agricultural risks and has limited capacity to manage risk at various levels. The report shows that disaster-related shocks along Zimbabwe’s agricultural supply chains directly translate to volatility in agricultural GDP. Such shocks have a substantial impact on economic growth, food security, and fiscal balance. When catastrophic disasters occur, the economy absorbs the shocks, without benefiting from any instruments that transfer the risk to markets and coping ability. The increasing prevalence of ‘shock recovery-shock’ cycles impairs Zimbabwe’s ability to plan and pursue a sustainable development path. The findings presented here confirm that it is highly pertinent for Zimbabwe to strengthen the capacity to manage risk at various levels, from the smallholder farmer, to other participants along the supply chain, to consumers (who require a reliable, safe food supply), and ultimately to the government to manage natural disasters. The assessment provides the following evidence on sources of risks and plausible risk management solutions. It is our hope that the report contributes to action by the Government of Zimbabwe to adopt a proactive and integrated risk management strategy appropriate to the current structure of the agricultural sector.Publication The Power of Survey Design : A User's Guide for Managing Surveys, Interpreting Results, and Influencing Respondents(Washington, DC: World Bank, 2006)The vast majority of data used for economic research, analysis, and policy design comes from surveys-surveys of households, firms, schools, hospitals, and market participants, and, the accuracy of the estimate will depend on how well the survey is done. This innovative book is both a 'how-to' go about carrying out high-quality surveys, especially in the challenging environment of developing countries, and a 'user's guide' for anyone who uses statistical data. Reading this book will provide data users with a wealth of insight into what kinds of problems, or biases to look for in different data sources, based on the underlying survey approaches that were used to generate the data. In that sense the book is an invaluable 'skeptics guide to data'. Yet, the broad storyline of the book is something that should be absorbed by statistical data users. The book will teach and show how difficult it often is to obtain reliable estimates of important social and economic facts, and, therefore encourages you to approach all estimates with sensible caution.