Watch BBC Future of Food online: Episode 3 Cuba

In the past year, we have seen food riots on three continents, food inflation has rocketed and experts predict that by 2050, if things don't change, we will see mass starvation across the world. This film sees George Alagiah travel the world in search of solutions to the growing global food crisis. From the two women working to make their Yorkshire market town self-sufficient to the academic who claims it could be better for the environment to ship in lamb from New Zealand, George Alagiah meets the people who believe they know how we should feed the world as demand doubles by the middle of the century. He heads out to Havana to find out how they are growing half of their fruit and vegetables right in the heart of the city, investigates the 'land-grabs' trend - where rich countries lease or buy up the land used by poor farmers in Africa - and meets the Indian agriculturalists who have almost trebled their yields over the course of a decade. George finds out how we in this country are using cutting-edge science to extend the seasons, recycle our food waste and even grow lettuce in fish tanks to guarantee the food on our plates. He hears the arguments about genetically modified food and examines even more futuristic schemes to get the food on to our plates.

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