Europe is at the forefront of tribology research; however, there is no individual research centre or university that could possibly cover the broad range of research topics at the necessary advanced levels and so provide the early-stage researchers (ESRs) with the knowledge and skills needed to tackle the problems involved in creating a more sustainable engineering future. GreenTRIBOS therefore brings together Europe’s four leading academic tribology-research institutions: University of Ljubljana, University of Leeds, University of Coimbra and Luleå University of Technology.