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Global warming may aggravate Indias wheat worries (Editorial)

India's concerns relating to grains, in general, and wheat, in particular, are becoming more serious. While demand continues to expand rapidly, output has turned unsteady in the last six or seven years, as much because of water stress and declining soil health as the effects of global warming. Wheat prices have doubled from what they were in early 2007. G. Chandrashekhar