This article raises interesting issues. The issue of desertification of China, if the details given that 24,000 villages in the northwestern part of the country have been totally or partially abandoned as sand dunes encroach on cropland. And that millions of Chinese farmers drilling wells to expand their harvests, with water tables are falling under much of the North China Plain, which produces half of the nationâ€™s wheat and a third of its corn, is true, then it sure raises concern. Indeed if Chinese agriculture is losing irrigation water to cities and factories and cropland is being sacrificed for residential and industrial construction, including highways and parking lots to accommodate Chinaâ€™s voracious demand for automobiles, it is for the Chinese to have a re-look at the pace of modernisation and take necessary action to balance development with necessary food production. It does cause alarm to note that for every 1 million cars added to this fleet, 50,000 acres are paved over. If Chinaâ€™s food supply is tightening and in November, its food price index was up 12 percent from 2009. And the price of vegetables alone was up 62 percent, then it is rather high compared to the rest of the world, which too is facing similar problems. If the effort to halt rising food prices, the government had to auctioned corn, wheat, rice and soybeans from state reserves, it does not auger well in the long run. However, Chinaâ€™s buying or leasing land in other countries from Sudan to Indonesia to produce food and biofuels is a step in the right direction even if there is little to show in production from these lands so far. It will take time I presume. However, the question that arises is that if the countries where China has bought or leased land are unable to meet their own domestic need, it will cause starvation there or, if the govt in those countries are autocratic with little regards to international norms, they might even nationalise the land and cause problems for China. Likewise, if China imports grains from the US as it did when it imported about 2 million tons of U.S. corn and wheat combined in 2010, swamps the U.S. grain market, it will cause the American consumers competing with nearly 1.4 billion foreign consumers for the U.S. grain harvest. This would raise the prices not only of products made directly from grain, such as bread, pasta and breakfast cereals, but also of meat, milk and eggs, which take large quantities of grain to produce. Corn futures have already hit $7 a bushel, up from $2 a bushel five years ago. In that same period, soybean futures climbed from $6 a bushel to $14 a bushel, and cattle and hog futures hit all-time highs. Therefore, the US will be constrained to not export leading to a crisis of sorts in China. The crux of the issue for the US is it faces a choice. If the limits grain sales to China, it might the Chinese limit their monthly purchases at Treasury securities auctions. What would happen to farmers who canâ€™t sell to the worldâ€™s largest food market? One canâ€™t know how this tension will play out politically, but one does know that the huge deficits of the past 30 years will restrict the USâ€™ bargaining power.