More than four years ago, an international group of collaborators embarked on a comparative study of Groundwater Futures in Sub-Saharan Africa (GroFutures) in three ‘basin observatories’, the Upper Great Ruaha in Tanzania, the Upper Awash in Ethiopia, and the Iullemmeden in Niger and Nigeria. One key aim of the project was to identify a range of existing, emerging and potential ‘groundwater development pathways’ in each basin. This work linked interdisciplinary, multi-scale research with a deliberative, multi-stakeholder engagement process in order to inform groundwater planning processes in the basins. Physical infrastructure to assess groundwater recharge and storage (i.e. piezometer arrays, soil-moisture…