摘要: # Prospects for feeding the world {#article-title-2} In 1950 world's population numbered 2.5 billion. In 1999 it is around 6 It will be roughly 8 billion by 2025. And could reach between 9 and 10 middle of coming century. Arguably this most important development our time, with immense implications global environment prospects world. #### Summary points Population growth factor fuelling demand more food to produced The sub-Saharan Africa probably faces grimmest receiving adequate nutrition The trade in cereals must increase substantially meet projected increases demand The pace cereal yields continuing no signs a slowdown The outlook would improved if decreased This paper addresses year builds on results two research fellowship funded UK Economic Social Research Council.1 The data used throughout were those provided United Nations Food Agriculture Organisation UN Population Fund. As well as analysing statistical data, involved talking technical specialists farmers world In early 1990s estimated that there 800 million undernourished people world.2 Most these live developing world, mainly Indian subcontinent Africa. However, organisation's estimate may too high. number was obtained through tortuous exercise which loaded assumptions. Also, an organisation concerned production have tendency err side overestimation. Certainly, past changed its criteria … Correspondence to: M King, 1 bis Rue du Tir, Geneva 1204, Switzerland