Roger is based at Imperial College London and joined the TSU in April 2020. As the operational Head of TSU, Roger has overall responsibility for the management of the TSU’s overarching work programme. He leads the internal management of the TSU, including financial management, and coordinates the planning and delivery of WGIII meetings. Before joining the TSU, Roger was the Deputy Director of the Open Air Laboratories (OPAL), a UK-wide citizen science programme encouraging members of the public to get hands-on with nature, whatever their age, background or level of ability, to engage with the pressing issues of biodiversity loss, pollution, and climate change. Before joining Imperial, Roger held corporate governance, finance and audit, and project and programme management roles in the private and public sector.