Few experts in the field would deny that there is a global grain crisis. Rising prices have provoked unrest in many countries, including Egypt, Haiti, the Philippines, Thailand and Cameroon. Vietnam, Cambodia, Egypt and India are restricting rice exports and Thailand is considering it.
It has become customary to apportion some of the blame on the booming economies of China and India, with their rapidly expanding middle classes and growing taste for a western diet.
However, a growing chorus of mainland agricultural specialists and commentators argue that it is western policies and consumption patterns that are fuelling the crisis. They point to the enormous consumption of meat and grain by the western consumers and their pets, rampant waste, large subsidies paid to farmers and aggressive export policies, particularly of the United States, that are aimed at preventing poor countries from becoming self-reliant.
Over the past year, global grain prices have risen 40 per cent, while stocks have fallen to their lowest level in 25 years.
As one of the world's biggest producers and consumers of grain, the mainland has not been spared. In April, its consumer price index rose 8.5 per cent from a year earlier, with food prices up 22.1 per cent. The heavy snowfalls in southern China in January will affect this year's crop.
It has become commonplace for commentators, particularly in the west, to blame food inflation on the switch of Chinese and Indians to an American-style meat diet, which is driving up the prices of meats and the grains needed to produce them.