Americans are some of the lowest consumers of rice but for most of the rest of the world it is the staple crop that keeps poorer consumers alive. The doubling of rice prices, coupled with rising prices for virtually all grains, is a major concern. While the US is an exporter of rice, many countries are now restricting exports to try to control prices. In a global economy this won’t work because you cannot have a commodity priced differently in two or more places- sellers in the cheaper country will find a way to sell in the more expensive one (one exception to this is the price of sugar in the US, held artificially high and protected from cheaper exports to the benefit of a few wealthy US sugar producers- a rant for another place!).

Rice, as a crop, is exceptionally sensitive to climate changes. Even a slight warming trend will kill off a crop and this is happening in traditional rice-growing areas worldwide. Because of the unique growing conditions needed for rice (water paddies) you cannot simply replant at a more suitable location. Combined with exploding energy and fuel costs, this forces prices up. It is not a small matter- people will starve.

The climate is a closed system. Changes have wide-reaching and sometimes unpredictable affects. Starvation will be one of them and it could change geo-politics very rapidly as hungry people are angry people.