India can sustainably enhance its food supply if its farmers plant less rice and more nutritious and environmentally-friendly crops, including finger millet, pearl millet, and sorghum, according to a new study from the Data Science Institute at Columbia University.
The study, published in the Proceedings of the National Academy of Sciences, finds that diversifying crop production in India, in this case replacing some rice — India’s main crop — with millets and sorghum, would make the nation’s food supply more nutritious while reducing irrigation demand, energy use, and greenhouse gas emissions. Such diversification of crops would also enhance India’s climate resilience without reducing calorie production or requiring more land.