By 2050 up to 65 percent of the world's population will live in cities according to the United Nations. This is up from around 50 percent today. The rate of urban migration is particularly high in sub-Saharan Africa and South Asia, where inadequate urban infrastructure struggles to keep up with the large influx of people. "Although most of the world's poor and hungry remain in rural areas, hunger is migrating with people into urban areas," said Brian Halweil, co-director of the Nourishing the Planet project.
Currently, an estimated 800 million people worldwide are engaged in urban agriculture, producing 15-20 percent of the world's food. However, this activity occurs mainly in Asia, making it critical to place more worldwide emphasis on this vital sector. In Africa, 14 million people migrate from rural to urban areas each year, and studies suggest that an estimated 35-40 million Africans living in cities will need to depend on urban agriculture to meet their food requirements in the future.
"Urban agriculture is an important aspect of the development movement as it has the potential to address some of our most pressing challenges, including food insecurity, income generation, waste disposal, gender inequality, and urban insecurity" said Nancy Karanja, a Professor at the University of Nairobi, Kenya.
Organizations such as Urban Harvest and others are working across the African continent to enhance urban agricultural efforts. In sub-Saharan Africa, the Educational Concerns for Hunger Organization (ECHO), a Florida-based organization, has helped farmers build gardens using old tires and other "trash" to create plant beds. And the group Harvest of Hope has helped organize urban Community Supported Agriculture (CSA) programs in Cape Town, South Africa, purchasing excess produce from city gardens and redistributing it in schools in the area.
"These projects are not only helping to provide fresh sources of food for city dwellers, but also providing a source of income, a tool to empower women, and a means of protecting the environment, among other benefits," said Mary Njenga, researcher at the University of Nairobi and the World Agroforestry Centre.
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