Robert Falkner is an Associate Professor of International Relations and the Research Director of the Grantham Research Institute on Climate Change and the Environment at the London School of Economics and Political Science. His publications include Environmentalism and Global International Security (Cambridge University Press, 2021) and The Handbook of Global Climate and Environment Policy (Wiley-Blackwell, 2013). Barry Buzan is a Fellow of the British Academy, Emeritus Professor in the LSE Department of International Relations and a Senior Fellow at LSE IDEAS. His publications include Rethinking Sino-Japanese Alienation (co-edted with Evelyn Goh, OUP, 2020), The Making of Global International Relations (with Amitav Acharya, Cambridge University Press, 2019).