The urban population in Africa south of the Sahara (SSA) is expected to expand rapidly from 376 million people in 2015 to more than 1.25 billion people by 2050. Measuring and ensuring food security among urban households will become an increasingly pertinent task for development researchers and practitioners. In this paper we characterize food security among a sample of low- and middle-income residents of Accra, Ghana, using 2017 survey data. We find that households tend to purchase food from traditional markets, local stalls and kiosks, and street hawkers, and rarely from modern supermarkets. We characterize food security using three established metrics: the Household Food Insecurity Access Scale (HFIAS); the Household Food Insecurity Access Prevalence (HFIAP); and the Food Consumption Score (FCS). We then estimate the determinants of food security using general linear models. The food security metrics are not strongly correlated. For example, according to HFIAP, as many as 70 percent of households sampled are food insecure, but only 2 percent fall below acceptable thresholds measured by FCS. Model results show that household education, assets, and dwelling characteristics are significantly associated with food security according to HFIAS and HFIAP, but not with FCS. The poor correlation and weak model agreement between the dietary recall metric, FCS, and the experience-based metrics, HFIAS and HFIAP, call for closer attention to measurement of urban food security. Given Africa’s urban future, our findings highlight the need for an urban-oriented comprehensive approach to the food security of urban households.

This book examines the role and position of urban agriculture in the spatial and functional structure of cities in the Global South. In the face of dynamic urbanisation and negative consequences of climate change, one of the key challenges is not only how to provide food for the ever-growing urban population but also how to achieve urban sustainability and simultaneously reduce the negative impact of cities on the natural environment. These problems are particularly urgent in the metropolises of the Global South that are experiencing the greatest population growth while struggling with increasing social inequalities and the resulting uneven distribution of resources. Examining the role that urban agriculture can play in addressing these challenges, this book draws on three case study cities: Havana, Singapore and Kigali. The case studies, differing in socio-economic, spatial, political and environmental terms, exemplify diverse characteristics of urban agriculture in different geographical conditions. Drawing on fieldwork conducted in each city, the book also provides a unique perspective on the constraints in the development of urban agriculture and the use of its full potential for urban sustainability. This book will appeal to students and scholars, as well as decision makers, interested in the issues of urban sustainability, food security, spatial development and alternative food systems.

This book provides a fresh analysis of the demography, health and well-being of a major African city. It brings a range of disciplinary approaches to bear on the pressing topics of urban poverty, urban health inequalities and urban growth. The approach is primarily spatial and includes the integration of environmental information from satellites and other geospatial sources with social science and health survey data. The authors Ghanaians and outsiders, have worked to understand the urban dynamics in this burgeoning West African metropolis, with an emphasis on urban disparities in health and living standards. Few cities in the global South have been examined from so many different perspectives. Our analysis employs a wide range of GIScience methods, including analysis of remotely sensed imagery and spatial statistical analysis, applied to a wide range of data, including census, survey and health clinic data, all of which are supplemented by field work, including systematic social observation, focus groups, and key informant interviews. This book aims to explain and highlight the mix of methods, and the important findings that have been emerging from this research, with the goal of providing guidance and inspiration for others doing similar work in cities of other developing nations.

This report examines the nature of urban poverty and how it relates to food in-security and malnutrition in Accra, Ghana. By exploring the major determinants of food security and nutritional status, it develops indicators that are appropriate in an urban context, identifies vulnerable groups within the city, and suggests policies and programs to improve the lives of the urban poor. (Adapté du résumé).

The ways in which the rapid urbanization of the Global South is transforming food systems and food supply chains, and the food security of urban populations is an often neglected topic. This international group of authors addresses this profound transformation from a variety of different perspectives and disciplinary lenses, providing an important corrective to the dominant view that food insecurity is a rural problem requiring increases in agricultural production.

Sustainable Urban Futures in Africa provides a variety of conventional and emerging theoretical frameworks to inform understandings and responses to critical urban development issues such as urbanisation, climate change, housing/slum, informality, urban sprawl, urban ecosystem services and urban poverty, among others, within the context of the sustainable development goals (SDGs) in Africa. This book addresses topics including challenges to spatial urban development, how spatial planning is delivered, how different urbanisation variables influence the development of different forms of urban systems and settlements in Africa, how city authorities could use old and new methods of land administration to produce sustainable urban spaces in Africa, and the role of local activism is causing important changes in the built environment. Chapters are written by a diverse range of African scholars and practitioners in urban planning and policy design, environmental science and policy, sociology, agriculture, natural resources management, environmental law, and politics. Urban Africa has huge resource potential – both human and natural resources – that can stimulate sustainable development when effectively harnessed. Sustainable Urban Futures in Africa provides support for the SDGs in urban Africa and will be of interest to students and researchers, professionals and policymakers, and readers of urban studies, spatial planning, geography, governance, and other social sciences.

Remote Sensing and GIS in Peri-Urban Research: Perspectives on Global Change, Sustainability and Resilience, Eleventh Edition provides the most recent methods and techniques, incorporating geoinformatics-based practices to map, evaluate, and model urban landscape attributes and changes. The book provides theory, methodology, and future perspectives of remote sensing and GIS techniques applied to peri-urban modelling, analysis and sustainability through the use of spatio-temporal geospatial datasets. It also includes case studies of real-world data sets, with applicable algorithms, techniques and methods for study. This will be a useful reference for researchers and academics in remote sensing, GIS, and spatial analysis, and environmental or urban scientists wanting to implement remote sensing technologies in their research. - Outlines applications of geospatial technologies for visualization of land use dynamics including spatial information about population distributions, built-up areas and degree of urbanization based on global and local datasets - Provides methodology for identification of peri-urban interfaces using techniques to identify peri-urban space and dynamics using remote sensing and GIS techniques - Includes worldwide case studies by experts from different countries increasing the understanding of the nature of global peri-urbanization and growth