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Assessing the sustainability of post-Green Revolution cereals in India
By Kyle Davis, Ashwini Chhatre, Narasimha Rao, Deepti Singh, Suparna Ghosh-Jerath, Anvi Mridul, Miguel Poblete-Cazenave, Nabin Pradhan, Ruth DeFries
Proceedings of the National Academy of Sciences | November 2019
DOI
doi.org/10.1073/pnas.1910935116
Citation
Davis, Kyle., Chhatre, Ashwini., Rao, Narasimha., Singh, Deepti., Ghosh-Jerath, Suparna., Mridul, Anvi., Poblete-Cazenave, Miguel., Pradhan, Nabin., DeFries, Ruth. Assessing the sustainability of post-Green Revolution cereals in India Proceedings of the National Academy of Sciences doi.org/10.1073/pnas.1910935116.
Copyright
Proceedings of the National Academy of Sciences, 2019
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Abstract
Sustainable food systems aim to provide sufficient and nutritious food, while maximizing climate resilience and minimizing resource demands as well as negative environmental impacts. Historical practices, notably the Green Revolution, prioritized the single objective to maximize production over other nutritional and environmental dimensions. We quantitatively assess outcomes of alternative production decisions across multiple objectives using India’s ricedominated monsoon cereal production as an example. We perform a series of optimizations to maximize nutrient production (i.e., protein and iron), minimize greenhouse gas (GHG) emissions and resource use (i.e., water and energy), or maximize resilience to climate extremes. We find that increasing the area under coarse cereals (i.e., millets, sorghum) improves nutritional supply (on average, +1% to +5% protein and +5% to +49% iron), increases climate resilience (1% to 13% fewer calories lost during an extreme dry year), and reduces GHGs (−2% to −13%) and demand for irrigation water (−3% to −21%) and energy (−2% to −12%) while maintaining calorie production and cropped area. The extent of these benefits partly depends on the feasibility of switching cropped area from rice to coarse cereals. Based on current production practices in 2 states, supporting these cobenefits could require greater manure and draft power but similar or less labor, fertilizer, and machinery. National- and state-level strategies considering multiple objectives in decisions about cereal production can move beyond many shortcomings of the Green Revolution while reinforcing the benefits. This ability to realistically incorporate multiple dimensions into intervention planning and implementation is the crux of sustainable food production systems worldwide.
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Ashwini Chhatre

Ashwini Chhatre is an Associate Professor of Public Policy and currently serves as the Executive Director of the Bharti Institute of Public Policy (BIPP) at the Indian School of Business (ISB). Professor Chhatre is an interdisciplinary scholar whose research interests broadly centre on the dynamic cross-scale interactions between governance, economic development, and environmental protection. He relocated to India from the US in 2014 to join the faculty at the Indian School of Business, Hyderabad. He spent 13 years in the US, including five in graduate school at Duke University, where he was awarded a PhD in Political Science. In 2006-07, Professor Chhatre became the first Giorgio Ruffolo Post-doctoral Fellow in Sustainability Science at Harvard University, before joining the Department of Geography and Geographic Information Science at the University of Illinois in Urbana-Champaign.

Between completing his BA in Economics from the University of Delhi in 1990 and starting his PhD at Duke University, he spent 11 years working in different parts of India, primarily as a community organiser and social activist on issues related to natural resources such as land, forests, and water. A background in Economics, graduate training in Political Science, and a long-standing engagement with scholarship in Geography, Anthropology, Landscape Ecology, and Environmental History ensure that his research is never confined to a single discipline.

Professor Chhatre’s main research interests lie in exploring the intersection of democracy, environment, and development, with a focus on decentralised forest governance, climate change vulnerability and adaptation, and multifunctional agriculture. Over the past 20 years, the scope of his research projects has ranged from household-level to global analysis, consistently bridging research, policy, and practice.

He was the founding Editor-in-Chief of World Development Perspectives (2016-19), served as Senior Editor of Conservation Letters (2009-2014), and has published one book and several articles in leading journals including Science, and PNAS.

Ashwini Chhatre