Rio+20 Videos

In this episode: researchers measure carbon levels stored within Tanzania's forests; Brazilian farmers turn to sustainable agriculture to rehabilitate the natural environment; Mali refugees arrive at the M'bera refugee camp in Mauritania in search of food and safety.

Sustainable development is essential if we are to achieve a safer, fairer, cleaner, greener and more prosperous world for all. We have most of the tools and knowledge we need to achieve this world. But there is still something missing: an answer to hunger. Nearly a billion people don’t know where their next meal is coming from. This must be solved before the world’s brighter, more sustainable future can begin.

Rio+20 must result in a change of mind-set. We can no longer afford to ignore the interdependencies between natural resources, the environment, hunger and malnutrition. Sustainable agricultural and food systems that make efficient use of our natural resources must become the basis of tomorrow's economy. And with sufficient political will and vision, agriculture can help us achieve the sustainable future we want: a world without hunger.

WFP Executive Director Ertharin Cousin stresses the importance of food security in the conversation about a sustainable future to take place at the UN Conference on Sustainable Development (Rio +2) in June 2012.

A programme in the Tigray region of Ethiopia is helping farmers rehabilitate land and manage their water resources so that they continue growing crops even during long stretches of dry weather. According to WFP spokesperson Challiss McDonough, the scheme is helping families move from "managing disasters to managing risks".