Dec 27, 2013
India is now the world's third-largest grain producer after China and the United States. The adoption of higher-yielding crop varieties and the spread of irrigation have led to this remarkable tripling of output since the early 1960s. Unfortunately, a growing share of the water that irrigates three-fifths of India's grain harvest is coming from wells that are starting to go dry. This sets the stage for a major disruption in food supplies for India's growing population.