Hoekstra, A. Y. & Wiedmann, T. O. Humanity’s unsustainable environmental footprint. Science 344, 1114–1117 (2014).
WWAP The United Nations World Water Development Report 2015: Water for a Sustainable World (UNESCO, 2015).
Shiklomanov, I. A. Appraisal and assessment of world water resources. Water Int. 25, 11–32 (2000).
Srinivasan, V., Lambin, E. F., Gorelick, S. M., Thompson, B. H. & Rozelle, S. The nature and causes of the global water crisis: syndromes from a meta-analysis of coupled human–water studies. Water Resour. Res. 48, W10516 (2012).
Coe, M. T. & Foley, J. A. Human and natural impacts on the water resources of the Lake Chad basin. J. Geophys. Res. 106, 3349–3356 (2001).
Gleeson, T., Wada, Y., Bierkens, M. F. P. & van Beek, L. P. H. Water balance of global aquifers revealed by groundwater footprint. Nature 488, 197–200 (2012).
Wada, Y., van Beek, L. P. H. & Bierkens, M. F. P. Nonsustainable groundwater sustaining irrigation: a global assessment. Water Resour. Res. 48, W00L06 (2012).
Richter, B. Chasing Water: A Guide for Moving from Scarcity to Sustainability (Island, 2014).
Richter, B. D. et al. Water scarcity and fish imperilment driven by beef production. Nat. Sustain. 3, 319–328 (2020).
Dudgeon, D. Prospects for sustaining freshwater biodiversity in the 21st century: linking ecosystem structure and function. Curr. Opin. Environ. Sustain. 2, 422–430 (2010).
Hanasaki, N. et al. An integrated model for the assessment of global water resources – Part 2: applications and assessments. Hydrol. Earth Syst. Sci. 12, 1027–1037 (2008).
Wada, Y. et al. Global monthly water stress: 2. Water demand and severity of water stress. Water Resour. Res. 47, W07518 (2011).
Hoekstra, A. Y., Mekonnen, M. M., Chapagain, A. K., Mathews, R. E. & Richter, B. D. Global monthly water scarcity: blue water footprints versus blue water availability. PLoS ONE 7, e32688 (2012).
Brauman, K. A., Richter, B. D., Postel, S., Malsy, M. & Flörke, M. Water depletion: an improved metric for incorporating seasonal and dry-year water scarcity into water risk assessments. Elementa https://doi.org/10.12952/journal.elementa.000083 (2016).
Mekonnen, M. M. & Hoekstra, A. Y. Four billion people facing severe water scarcity. Sci. Adv. 2, e1500323 (2016).
Vörösmarty, C. J., Green, P., Salisbury, J. & Lammers, R. B. Global water resources: vulnerability from climate change and population growth. Science 289, 284–288 (2000).
Oki, T. & Kanae, S. Global hydrological cycles and world water resources. Science 313, 1068–1072 (2006).
Burek, P. et al. Water Futures and Solution – Fast Track Initiative (Final Report) (IIASA, 2016).
Alcamo, J. et al. Global estimates of water withdrawals and availability under current and future ‘business-as-usual’ conditions. Hydrol. Sci. J. 48, 339–348 (2003).
WWAP The United Nations World Water Development Report 2019: Leaving No One Behind (UNESCO, 2019).
Vörösmarty, C. J., Hoekstra, A. Y., Bunn, S. E., Conway, D. & Gupta, J. Fresh water goes global. Science 349, 478–479 (2015).
Hoekstra, A. Y. & Chapagain, A. K. Globalization of Water: Sharing the Planet’s Freshwater Resources (Blackwell, 2008).
Hoekstra, A. Y. The global dimension of water governance: why the river basin approach is no longer sufficient and why cooperative action at global level is needed. Water 3, 21–46 (2011).
Naylor, R. et al. Losing the links between livestock and land. Science 310, 1621–1622 (2005).
Hoekstra, A. Y. & Mekonnen, M. M. The water footprint of humanity. Proc. Natl Acad. Sci. USA 109, 3232–3237 (2012).
Allan, J. A. Virtual water: a strategic resource: global solutions to regional deficits. Groundwater 36, 545–546 (1998).
Lenzen, M. et al. International trade of scarce water. Ecol. Econ. 94, 78–85 (2013).
Hoekstra, A. Y. Water footprint assessment: evolvement of a new research field. Water Resour. Manag. 31, 3061–3081 (2017).
Boulay, A. M., Hoekstra, A. Y. & Vionnet, S. Complementarities of water-focused life cycle assessment and water footprint assessment. Environ. Sci. Technol. 47, 11926–11927 (2013).
Hoekstra, A. Y. A critique on the water-scarcity weighted water footprint in LCA. Ecol. Indic. 66, 564–573 (2016).
Pfister, S. et al. Understanding the LCA and ISO water footprint: a response to Hoekstra (2016) ‘A critique on the water-scarcity weighted water footprint in LCA’. Ecol. Indic. 72, 352–359 (2017).
Chenoweth, J., Hadjikakou, M. & Zoumides, C. Quantifying the human impact on water resources: a critical review of the water footprint concept. Hydrol. Earth Syst. Sci. 18, 2325–2342 (2014).
Dolganova, I. et al. The water footprint of European agricultural imports: hotspots in the context of water scarcity. Resources 8, 141 (2019).
Finogenova, N. et al. Water footprint of German agricultural imports: local impacts due to global trade flows in a fifteen-year perspective. Sci. Total Environ. 662, 521–529 (2019).
Feng, K., Hubacek, K., Pfister, S., Yu, Y. & Sun, L. Virtual scarce water in China. Environ. Sci. Technol. 48, 7704–7713 (2014).
Yano, S., Hanasaki, N., Itsubo, N. & Oki, T. Water scarcity footprints by considering the differences in water sources. Sustainability 7, 9753 (2015).
Hoekstra, A. Y. & Chapagain, A. K. Water footprints of nations: water use by people as a function of their consumption pattern. Water Resour. Manag. 21, 35–48 (2007).
Fader, M. et al. Internal and external green-blue agricultural water footprints of nations, and related water and land savings through trade. Hydrol. Earth Syst. Sci. 15, 1641–1660 (2011).
Chen, Z.-M. & Chen, G. Q. Virtual water accounting for the globalized world economy: national water footprint and international virtual water trade. Ecol. Indic. 28, 142–149 (2013).
Wang, R. & Zimmerman, J. Hybrid analysis of blue water consumption and water scarcity implications at the global, national, and basin levels in an increasingly globalized world. Environ. Sci. Technol. 50, 5143–5153 (2016).
Vanham, D. The water footprint of the EU: quantification, sustainability and relevance. Water Int. 43, 731–745 (2018).
Galli, A. et al. Integrating ecological, carbon and water footprint into a ‘Footprint Family’ of indicators: definition and role in tracking human pressure on the planet. Ecol. Indic. 16, 100–112 (2012).
Ercin, E., Chico, D. & Chapagain, A. K. Vulnerabilities of the European Union’s economy to hydrological extremes outside its borders. Atmosphere 10, 593 (2019).
Feng, K., Siu, Y. L., Guan, D. & Hubacek, K. Assessing regional virtual water flows and water footprints in the Yellow River Basin, China: a consumption based approach. Appl. Geogr. 32, 691–701 (2012).
Zhuo, L., Mekonnen, M. M. & Hoekstra, A. Y. The effect of inter-annual variability of consumption, production, trade and climate on crop-related green and blue water footprints and inter-regional virtual water trade: a study for China (1978–2008). Water Res. 94, 73–85 (2016).
Rushforth, R. R. & Ruddell, B. L. A spatially detailed blue water footprint of the United States economy. Hydrol. Earth Syst. Sci. 22, 3007–3032 (2018).
Hou, S. et al. Blue and green water footprint assessment for China—a multi-region input–output approach. Sustainability 10, 2822 (2018).
Dalin, C., Wada, Y., Kastner, T. & Puma, M. J. Groundwater depletion embedded in international food trade. Nature 543, 700–704 (2017).
Scanlon, B. R. et al. Groundwater depletion and sustainability of irrigation in the US High Plains and Central Valley. Proc. Natl Acad. Sci. USA 109, 9320–9325 (2012).
Marston, L., Konar, M., Cai, X. & Troy, T. J. Virtual groundwater transfers from overexploited aquifers in the United States. Proc. Natl Acad. Sci. USA 112, 8561–8566 (2015).
Siebert, S. et al. Groundwater use for irrigation – a global inventory. Hydrol. Earth Syst. Sci. Discuss. 7, 3977–4021 (2010).
Rosa, L., Chiarelli, D. D., Tu, C., Rulli, M. C. & D’Odorico, P. Global unsustainable virtual water flows in agricultural trade. Environ. Res. Lett. 14, 114001 (2019).
Qu, S. et al. Virtual water scarcity risk to the global trade system. Environ. Sci. Technol. 52, 673–683 (2018).
Liu, W. et al. Savings and losses of global water resources in food-related virtual water trade. WIREs Water 6, e1320 (2019).
Han, M. Y., Chen, G. Q. & Li, Y. L. Global water transfers embodied in international trade: tracking imbalanced and inefficient flows. J. Clean. Prod. 184, 50–64 (2018).
Carr, J. A., D’Odorico, P., Laio, F. & Ridolfi, L. Recent history and geography of virtual water trade. PLoS ONE 8, e55825 (2013).
Carr, J. A., D’Odorico, P., Laio, F. & Ridolfi, L. On the temporal variability of the virtual water network. Geophys. Res. Lett. 39, L06404 (2012).
Konar, M., Dalin, C., Hanasaki, N., Rinaldo, A. & Rodriguez-Iturbe, I. Temporal dynamics of blue and green virtual water trade networks. Water Resour. Res. 48, W07509 (2012).
Hoekstra, A. Y. & Mekonnen, M. M. Imported water risk: the case of the UK. Environ. Res. Lett. 11, 055002 (2016).
Richter, B. D., Davis, M. M., Apse, C. & Konrad, C. A presumptive standard for environmental flow protection. River Res. Appl. 28, 1312–1321 (2012).
Hoekstra, A. Y., Chapagain, A. K., Aldaya, M. M. & Mekonnen, M. M. The Water Footprint Assessment Manual: Setting the Global Standard (Earthscan, 2011).
Schewe, J. et al. Multimodel assessment of water scarcity under climate change. Proc. Natl Acad. Sci. USA 111, 3245–3250 (2014).
Poff, N. L. et al. The ecological limits of hydrologic alteration (ELOHA): a new framework for developing regional environmental flow standards. Freshw. Biol. 55, 147–170 (2010).
Tessmann, S. A. in Environmental Use Sector: Reconnaissance Elements of the Western Dakotas Region of South Dakota Study (Water Resources Institute, South Dakota State Univ., 1980).
Suweis, S., Carr, J. A., Maritan, A., Rinaldo, A. & D’Odorico, P. Resilience and reactivity of global food security. Proc. Natl Acad. Sci. USA 112, 6902–6907 (2015).
Brauman, K. A., Siebert, S. & Foley, J. A. Improvements in crop water productivity increase water sustainability and food security—a global analysis. Environ. Res. Lett. 8, 024030 (2013).
Mekonnen, M. M., Hoekstra, A. Y., Neale, C. M. U., Ray, C. & Yang, H. S. Water productivity benchmarks: the case of maize and soybean in Nebraska. Agric. Water Manag. 234, 106122 (2020).
Tilman, D., Cassman, K. G., Matson, P. A., Naylor, R. & Polasky, S. Agricultural sustainability and intensive production practices. Nature 418, 671–677 (2002).
Foley, J. A. et al. Solutions for a cultivated planet. Nature 478, 337–342 (2011).
Hoekstra, A. Y. Water for animal products: a blind spot in water policy. Environ. Res. Lett. 9, 091003 (2014).
Mekonnen, M. M. & Fulton, J. The effect of diet changes and food loss reduction in reducing the water footprint of an average American. Water Int. 43, 860–870 (2018).
Kummu, M. et al. Lost food, wasted resources: global food supply chain losses and their impacts on freshwater, cropland, and fertiliser use. Sci. Total Environ. 438, 477–489 (2012).
Rockström, J. et al. Managing water in rainfed agriculture—the need for a paradigm shift. Agric. Water Manag. 97, 543–550 (2010).
Chukalla, A. D., Krol, M. S. & Hoekstra, A. Y. Green and blue water footprint reduction in irrigated agriculture: effect of irrigation techniques, irrigation strategies and mulching. Hydrol. Earth Syst. Sci. 19, 4877–4891 (2015).
Mueller, N. D. et al. Closing yield gaps through nutrient and water management. Nature 490, 254–257 (2012).
Mekonnen, M. M. & Hoekstra, A. Y. Water footprint benchmarks for crop production: a first global assessment. Ecol. Indic. 46, 214–223 (2014).
Vanham, D., Mekonnen, M. M. & Hoekstra, A. Y. The water footprint of the EU for different diets. Ecol. Indic. 32, 1–8 (2013).
West, P. C. et al. Leverage points for improving global food security and the environment. Science 345, 325–328 (2014).
Mekonnen, M. & Hoekstra, A. A global assessment of the water footprint of farm animal products. Ecosystems 15, 401–415 (2012).
Mekonnen, M. M. et al. Water, energy, and carbon footprints of bioethanol from the U.S. and Brazil. Environ. Sci. Technol. 52, 14508–14518 (2018).
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