Professor David Simon is currently in Paris participating in events linked to the UN COP21 Climate Conference. In his role as Director of Mistra Urban Futures, he has been contributing to workshops and webinars on the importance of cities in achieving global climate goals. Unlike the 2009 Copenhagen Climate Conference, where cities were ‘almost invisible’, the Paris meeting has highlighted the role of urban areas in the sustainability challenges that the world is facing. Rising living standards in urban areas can lead to increasingly unsustainable lifestyles. However, David also stresses the lessons that can be learned from small and intermediate cities; collaboration across political divides is often easier at a local level, and there are numerous examples of good practice which can be shared between cities, but also scaled up. To see David discussing these issues in a webinar on ‘Cities and Mayors Leading the New Climate Economy’ in the Nordic Pavilion, click here [David’s interview starts about 10.30 mins in].