The world is moving to the town and is taking its agriculture with it. Urban farmers will contribute even more to our future than they did to our past, but who will take responsibility for them 'This food is like a reserve. It helps when money is scarce. You can go and harvest your mayuni (cocoyams) and eat the leaves as etimpa (sauce).' This down-to-earth attitude of a low-income mother farming a tiny plot of low-lying land near a drainage canal in Kampala, Uganda, is typical of the majority of the world's 700 million urban farmers. More people are moving to towns than to rural areas. In Africa, 35% of the continent's population of 749 million in 1998 is urban, and it is growing at a rapid 8% each year. To face this challenge, con...