Despite increasing growth in food production, food security remains a problem. If the available food energy were evenly distributed within each country, 33 countries would not have been able to assure sufficient food energy (2,200 calories/person/day) during 1990-92. Over 20 per cent of the developing world's population was chronically undernourished or underfed in the '80s. The number of underweight preschool children shot from 164 m in 1980 to 184 m in 1990. Poverty lies at the root of food insecurity. More than 1 b people earn less than us $1 per day. Almost 100 b people will be added to the word population every year, making food more and more inaccessible to a growing section of people.