The Urban Century "In 1950, one-third of the world’s people lived in cities. Just 50 years later, this proportion has risen to one-half and will continue to grow to two-thirds, or six billion people, by 2050. Cities are now home to half of humankind. " UN-Habitat
This trend is equivalent to adding a city of one million residents every week (UN-HABITAT 2004).
In many African cities, it is common for families to eat just one meal a day. Malnutrition and related health issues are commonplace. Little wonder, then, that increasing numbers of people look for ways to supplement the meager amounts of food that they can afford to buy.
There is crop and animal production on rooftops, in window boxes, on roadsides, beside railroads, beneath high tension lines, within utility rights of way, in vacant lots of industrial estates, on steep slopes and banks of rivers, and on the grounds of schools, hospitals, prisons, and other institutions. There is aquaculture in tanks, ponds, and pens in rivers. There are silkworms, red wrigglers and mushrooms in peoples homes…