India’s supply of arable farmland spans 183 million hectares — second only to the United States — nearly 72 million hectares, or 40 percent, of which were planted with rice and wheat in 2010. Of Punjab’s 4.3 million hectares of cropland, 85 percent is irrigated with groundwater. Punjabi farmers have installed more than 1.2 million wells to irrigate their fields since the mid-1960s, and about 20,000 new wells are added annually. (Image © Aubrey Ann Parker / Circle of Blue)