In this episode, our panel talked about how to accelerate progress on decarbonising transport, building on the competitive nature of city regions and their mayors to spur on action. The conversation covered examples where change is happening, from Manchester to Jakarta, the impact of carbon budgeting and the co-benefits of actions to reduce emissions from transport. Our guests were Caroline Watson, Programme Director of Transport at C40 Cities Climate Leadership Group and Jonathan Bray, Director of the Urban Transport Group. They were interviewed by Glenn Lyons, the Mott MacDonald Professor of Future Mobility at the University of West of England.