Even Mormon food banks are running out of supplies while Wal-Mart is already limiting purchases of rice. Some of this has to be due to cropland being used to grow biofuel instead of food, thus limiting supply.
Biofuel can be made from a multitude of non-food crop sources. Crop land needs to be reserved for growing food, not fuel stock.
While biofuels may be a small part of the prblem– they’ve certainly driven up the price of corn and meat– the shortages of rice and wheat likely have other causes: overpopulation and bad weather. The rice shortage began in India, which in a single year switched from being a major exporter of rice to being an importer. The wheat shortage seems to have been caused by the rice shortage, as those who used to eat rice switch to a more available food.