John Barry is Professor of Green Political Economy at Queens University Belfast.  His areas of research include green economics, normative aspects of the transition from unsustainability, green political theory, governance for sustainability transitions, the greening of citizenship and civic republicanism, and climate change and energy security politics, policy, and political economy. His books include Rethinking Green Politics: Nature, Virtue and Progress and Environment and Social Theory. His co-edited books include Sustaining Liberal Democracy, Europe, Globalisation and Sustainability, The Nation-State and the Global Ecological Crisis, Contemporary Environmental Politics, and Environmental Philosophy: The Art of Living in a World of Limits. His latest book is The Politics of Actually Existing Unsustainability: Human Flourishing in a Climate-Changed, Carbon-Constrained World. His current research project is “Beyond Economic Growth: Political, Ethical and Cultural Dimensions of Post-Growth Green Political Economy.”