Cuba's successful models of sustainable development — in areas of food, housing and health — are now being widely replicated throughout Latin America.

When the small British mill town of Todmorden, tucked in between Yorkshire and Lancashire, first began installing fruit and vegetable gardens all around the area as part of the Incredible Edible program, it likely had no idea that the novel, yet simple, concept would make the town a foremost inspirational and self-sustaining model of the future.

On Saturday 12 March Cape Town is going nuts! This will be a first – the previous attempt in 2007 to join the world in doing so was banned by the authorities. Will we succeed this time? Are we ready to bare all for earth?