Since its launch in June 2014, the ESRC Nexus Network has worked to support transdisciplinary research at the food-water-energy-environment nexus, and to create meaningful links between communities of researchers, policymakers, business leaders and practitioners. Through its activities, the Network has shown that social science is vital. The language of the nexus highlights the need for interconnected thinking between natural and social sciences, and between the research community and decision makers. This report summarises and reflects on those activities