FAO - Food production will have to increase by 70 percent
http://www.fao.org/news/story/en/item/35571/icode/
25-Sep-2009 (16 years 8 months 15 days ago)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.
The UN agency will organize a High-Level Expert Forum in Rome on 12-13 October 2009 to discuss strategies on "How to Feed the World in 2050". The Forum will bring together around 300 leading experts from academic, nongovernmental and private sector institutions from developing and developed countries.