David Peck researches and teaches in the field of critical materials and circular design. He is a manager of the tri-partite university partnership Leiden-Delft-Erasmus Centre for Sustainability (CfS). The CfS has a focus on resources, circular and cities. He is responsible for the funding opportunities in the centre. David is the university leader for the Ellen MacArthur Foundation pioneer university programme and is the representative for all the university faculties. He has also been a senior mentor for the Schmidt-MacArthur fellowship programme. He is manager for TU Delft in the KIC EIT Raw Materials, the 7 year+ EU programme on raw materials: sustainable exploration, extraction, processing, recycling, remanufacturing and substitution with a core focus on closing loops.