Food prices are soaring, a wealthier Asia is demanding better food and farmers cannot keep up. In short, the world faces a food crisis and in some places it is already boiling over. Around the globe, people are protesting and governments are responding with often counterproductive controls on prices and exports - a new politics of scarcity in which ensuring food supplies is becoming a major challenge for the 21st century. Damaged by severe weather in producing countries and plundered by a boom in demand from fast-developing nations, global wheat stocks are at 30-year lows. Grain prices have been on the rise for five years, ending decades of inexpensive food. Drought, a declining dollar, a shift of investment money into commodities and use of farm land to grow biofuel crops have all contributed to food woes. But population growth and the growing wealth of China and other emerging countries are likely to be more enduring factors. World population is set to hit 9 billion by 2050, and most of the extra 2.5 billion people will live in the developing world. It is in these countries that the population is demanding dairy and meat, which require more land to produce. "This is an additional setback for the world economy, at a time when we are already going through major turbulence, but the biggest drama is the impact of higher food prices on the poor," Angel Gurr