📄 Read it in Nature Communications here (open access):
Tuninetti, M., Davis, K.F. (2026). Addressing global hotspots of drought-related crop production losses. Nature Communications, 17, 6605.
We mapped the drought sensitivity of 17 major crops — 75% of global production — to see which of the world's breadbaskets are most vulnerable when water runs short.
What we found:
Under historically observed extremes, drought variability costs about 10% of rainfed and 7% of irrigated production globally — enough calories to feed 2.1 billion people.
The encouraging part: for monsoon cereals, sustainable irrigation expansion (only where water isn't already scarce) plus targeted crop switching could avoid 62% of rainfed losses AND raise median production by 14% — with the largest benefits in countries like Nigeria, Argentina, and Brazil.
We view this as an important step forward in supporting more refined and spatially targeted interventions for adapting the world's agriculture to drought conditions.
Tuninetti, M., Tamea, S., D'Odorico, P., Laio, F., & Ridolfi, L. (2015). Global sensitivity of high‐resolution estimates of crop water footprint. Water Resources Research, 51(10), 8257-8272.
Tuninetti, M., Tamea, S., Laio, F., & Ridolfi, L. (2017). A Fast Track approach to deal with the temporal dimension of crop water footprint. Environmental Research Letters, 12(7), 074010.
Tuninetti, M., Tamea, S., & Dalin, C. (2019). Water debt indicator reveals where agricultural water use exceeds sustainable levels. Water Resources Research, 55(3), 2464-2477.
Tamea, S., Tuninetti, M., Soligno, I., & Laio, F. (2020). Virtual water trade and water footprint of agricultural goods: the 1961–2016 CWASI database. Earth System Science Data Discussions, 2020, 1-23.
Falchetta, G., Semeria, F., Tuninetti, M., Giordano, V., Pachauri, S., & Byers, E. (2023). Solar irrigation in sub-Saharan Africa: economic feasibility and development potential. Environmental Research Letters, 18(9), 094044.
Wei, D., Castro, L. G., Chhatre, A., Tuninetti, M., & Davis, K. F. (2025). Swapping rice for alternative cereals can reduce climate-induced production losses and increase farmer incomes in India. Nature Communications, 16(1), 2108.
De Petrillo, E., Fahrländer, S.F., Tuninetti, M., Andersen, S. L, Monaco, M., Ridolfi, L., Laio, F. (2025). Reconciling tracked atmospheric water flows to close the global freshwater cycle. Commun. Earth & Environ. 6, 347.
De Petrillo, E., Monaco, L., Tuninetti, M., Staal, A., Laio, F. (2025). Cell-scale atmospheric moisture flows dataset reconciled with ERA5 reanalysis. Sci Data 12, 629.
Tuninetti, M., Davis, K.F. (2026). Addressing global hotspots of drought-related crop production losses. Nature Communications, 17, 6605.
Tuninetti, M., Ridolfi, L., & Laio, F. (2022). Compliance with EAT–Lancet dietary guidelines would reduce global water footprint but increase it for 40% of the world population. Nature Food, 3(2), 143-151.
Bertassello, L., Müller, M. F., Wiechman, A., Penny, G., Tuninetti, M., & Müller-Itten, M. C. (2023). Food demand displaced by global refugee migration influences water use in already water stressed countries. Nature Communications, 14(1), 2706.
De Petrillo, E., Tuninetti, M., Ridolfi, L. & Laio, F. (2023). International corporations trading Brazilian soy are keystone actors for water stewardship. Commun Earth Environ 4, 87
Giordano, V., Tuninetti, M., & Laio, F. (2026). High-income countries dietary trajectories diverge from the global nutrition transition. Environmental Research: Food Systems.
Tuninetti, M., Tamea, S., Laio, F., & Ridolfi, L. (2017). To trade or not to trade: Link prediction in the virtual water network. Advances in Water Resources, 110, 528-537.
Distefano, T., Tuninetti, M., Laio, F., & Ridolfi, L. (2020). Tools for reconstructing the bilateral trade network: a critical assessment. Economic Systems Research, 32(3), 378-394.
Semeria, F., Ridolfi, L., Tuninetti, M. (2024). A multi-level network tool to trace wasted water from farm to fork and backwards. Environ. Res. Lett. 19 074026.
Country-ocean-moisture-flows
Reconciled global atmospheric moisture flows between countries/oceans and subcontinents (tracked volumes of precipitation and evaporation reconciled with reanalysis data, closing the annual hydrological balance). The latest updated version is based on a 3D fractional mask.