On the weekend I participated in a session of Peking University’s Yenching Global Symposium. Our panel discussion on the theme ‘Tackling Climate Change in an Era of (Inter)nationalism’ was moderated by Ann Chen (Director of Academic Programming at the Yenching Global Symposium) and included Sasha Sud (Director of Smart Cities with MaRS Partnerships), Ma Jun (Director of the Institute of Public & Environmental Affairs), Zhang Shiqiu (Professor at Peking University’s College of Environmental Sciences and Engineering, Institute of Environment and Economy) and me. Great questions from delegates and engagement in this very timely discussion.