National Geographic: Urban Farming Is Growing a Green Future
Photo and story series on-line
Farming to Survive. In many poor urban neighborhoods, people have long had to grow some of their own food or tend livestock. Pigs can be kept without a lot of space, and they can eat scraps and garbage. This pen in Pamplona Alta shantytown in Lima, Peru, helps feed a low-income family.
Waste and smells can be a problem, which is why many cities have historically moved to ban animal husbandry within their borders. However, rising awareness of hygiene has helped persuade some officials to loosen some restrictions, especially on chickens.