There is a global rice crisis

According to Indonesian legend, rice was bestowed upon the island of Java by the goddess Dewi Sri. Pitying its inhabitants the blandness of their existing staple, cassava, she taught them how to nurture rice seedlings in lush green paddy fields. In India, the Hindu goddess Annapurna is said to have played a similar role; in Japan, Inari. Across Asia, rice is conferred with a divine, and usually feminine, origin story. Such mythologising is understandable. For thousands of years the starchy seeds of the grass plant Oryza sativa (often called Asian rice) have been the continent's main foodstuff. Asia accounts for 90% of the world's rice production and almost as much of its consumption.

Asians get more than a quarter of their daily calories from rice. The UN estimates that the average Asian consumes 77kg of rice a year -- more than the average African, European and American combined (see chart). Hundreds of millions of Asian farmers depend on growing the crop, many with only tiny patches of land. Yet the world's rice bowl is cracking. Global rice demand -- in Africa as well as Asia -- is soaring. Yet yields are stagnating. The land, water and labour that rice production requires are becoming scarcer. Climate change is a graver threat. Rising temperatures are withering crops; more frequent floods are destroying them. No mere victim of global warming, rice cultivation is also a major cause of it, because paddy fields emit a lot of methane, a potent greenhouse gas. The crop that fuelled the rise of 60% of the world's population is becoming a source of insecurity and threat.

Rising demand exacerbates the problem. By 2050 there will be 5.3bn people in Asia, up from 4.7bn today, and 2.5bn in Africa, up from 1.4bn. That growth is projected to drive a 30% rise in rice demand, according to a study published in the journal Nature Food. And only in the richest Asian countries, such as Japan and South Korea, are bread and pasta eating into rice's monopoly as the continental staple. Yet Asia's rice productivity growth is falling. Yields increased by an annual average of only 0.9% over the past decade, down from around 1.3% in the decade before that, according to data from the UN. The drop was sharpest in South-East Asia, where the rate of increase fell from 1.4% to 0.4%.

Source: The Economist