Introduction: Virtual water: its implications on agriculture and trade Chittaranjan Ray, David McInnes and Matthew Sanderson 1. The water footprint of the EU: quantification, sustainability and relevance Davy Vanham 2. The exposure of a fresh fruit and vegetable supply chain to global water-related risks Tim Hess and Chloe Sutcliffe 3. Advising Morocco: adopting recommendations of a water footprint assessment would increase risk and impair food security for the country and its farmers Dennis Wichelns 4. Future crop yields and water productivity changes for Nebraska rainfed and irrigated crops Yaqiong Lu, Xianyu Yang and Lara Kueppers 5. Can Sub-Saharan Africa feed itself? The role of irrigation development in the region’s drylands for food security Hua Xie, Nicostrato Perez, Weston Anderson, Claudia Ringler and Liangzhi You 6. Sustainability of aquifers supporting irrigated agriculture: a case study of the High Plains aquifer in Kansas James J. Butler, Donald O. Whittemore, B. Brownie Wilson and Geoffrey C. Bohling 7. Irrigation variability and climate change affect derived distributions of simulated water recharge and nitrate leaching Timothy R. Green and Saseendran S. Anapalli 8. The water footprint challenge for water resources management in Chilean arid zones Pablo Alvarez 9. The effect of diet changes and food loss reduction in reducing the water footprint of an average American Mesfin M. Mekonnen and Julian Fulton 10. Water footprint for Korean rice products and virtual water trade in a water-energy-food nexus Sang-Hyun Lee, Jin-Yong Choi, Seung-Hwan Yoo and Rabi H. Mohtar 11. Water footprint of beef production on Texas High Plains pasture Charles P. West and Lisa L. Baxter 12. Tradeoffs in the water-energy- food nexus in the urbanizing Asia-Pacific region Makoto Taniguchi, Naoki Masuhara and Shun Teramoto