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Video: FAO's Hafez Ghanem on how to feed the world by 2050

23 September 2009, Rome - Producing 70 percent more food for an additional 2.3 billion people by 2050 while at the same time combating poverty and hunger, using scarce natural resources more efficiently and adapting to climate change are the main challenges world agriculture will face in the coming decades, according to an FAO discussion paper published today.

Here, Hafez Ghanem, Assistant Director-General for FAO's Economic and Social Development Department, discusses some of the challenges that lie ahead.