The origins of rice are uncertain, because rice has been grown for so many thousands of years. In several Asian languages, the words for food and rice, or for rice and agriculture, are the same, one of the facts that points to Asia as the origin of rice. It is certain, however, that rice cultivation is one of the most important developments in history, for rice has fed more people over a longer period of time than any other crop. The demand for rice is growing steadily, with consumption stretching beyond the traditional rice growing areas in Asia. You can find rice fields in Europe, Latin America and Australia. However, Asia is still the biggest rice producer, accounting for 9096 of the world's production and consumption of rice. Rice is a staple food for many countries. In parts of Africa and Asia, many poorer urban families get over half their daily calories from rice. As the world population increases, can rice keep up? To meet growing demands, rice production has to be raised by at least 7096 over the next three decades. The area devoted to rice cultivation cannot grow, so much international research is being done to find ways of growing rice on less land.