(NaturalNews) Riots and other forms of civil unrest have already broken out around the world in response to a global grain shortage and surging food prices.

According to data from the World Food Program and the early warning and global information system of the Food and Agricultural Organization, street protests and rioting over high food prices have broken out in Guinea, Indonesia, Mauritania, Mexico, Morocco, Uzbekistan, Yemen and West Africa in the past several months.

Prices of wheat and rice in particular have skyrocketed recently. Rice prices have increased 50 percent in the past year, while wheat prices went up 115 percent in the same time period. The high prices have been attributed to increased fuel and shipping costs, plus a worldwide grain shortage.