This piece is a follow up in our new series on water. This time, FCRN member Dr Tim Hess from Cranfield University continues where Brad Ridoutt left off in his post on An update on water footprints. Tim is an Associate Professor in Water Management at the School of Energy, Environment and Agrifood. He has over 30 years’ experience in research and consultancy in the application of hydrology in managed rural environments, particularly irrigated agriculture in the UK and overseas. This has been applied to sustainable food supply chains, working with national and international organisations and major UK retailers.