Baroness Brown is a Crossbench Member of the House of Lords and chairs the Climate Change Committee's Adaptation Committee.

She is the SID and Chair of the ESG Committee at Ceres Power, a non-executive director of Orsted, Chair of Frontier IP, Chair of the Cleantech Advisory Board at BGF and a Fellow of the Cambridge Institute for Sustainability Leadership. She is a Fellow of both the Royal Academy of Engineering and the Royal Society and an Honorary Fellow of the Academy of Medical Sciences

Previous roles include Chair of the House of Lords Science and Technology Select Committee, ten years as the UK’s Low Carbon Business Ambassador, a decade spent as the Vice-Chancellor of Aston University, serving as Principal of the Engineering Faculty at Imperial College London, a series of senior business and engineering posts at Rolls-Royce plc as well as Chair of the Sir Henry Royce Institute for Advanced Materials, Council member of Innovate UK, and vice chair of the Climate Change Committee.