Havana has over 200 farms, spurred during the era after the Soviet Union collapsed and the Cuban oil supply rocketed. The Cuban model of urban farming is an inspiration for groups around the world.
And in Africa, an Italian charity is handing out a "farm in a sack" to needy families.
"[The] "farm-in-a-sack" project provides poor families with more than 40 seedlings, which can be grown into food in just a few weeks. Each "base" or mini-farm can provide vegetables such as spinach for 150 families, says COOPI.
Claudio Torres, from COOPI, said: "There are two effects. There is the main effect that they really have more food and that's like nutrition and micronutrients. But also, as you can see, this brings together the community.""