Looking over the degree of self-sufficiency in grain of typical countries, we can see that they are not serious agricultural problems especially US, Brazil, Russia and India except Japan, Britain and China. US, Brazil, Russia and India may produce separately 1, 1, 0.5, 0.5? billion tons of grain each year if they like to China to produce grain. Because of odds distributing grain some country appears famine which is temporary and solvable. Space of increasing grain in the world is very huge amount, world total grain output will maybe reach to increase twice if which like China even not necessary increasing plough land. So we can say that world grain crisis is not coming in. (to be proofread)
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