Edited by Harro van Asselt, Hatton Professor of Climate Law, Department of Land Economy and Fellow, Hughes Hall, University of Cambridge, UK, and Professor of Climate Law and Policy, University of Eastern Finland, Joensuu, Finland, Seita Vesa, Professor of Environmental Law, Center for Climate Change, Energy and Environmental Law (CCEEL), University of Eastern Finland, Joensuu and Research Professor, Climate Solutions Unit (SYKE), Finnish Environment Institute, Helsinki, Finland and Kaisa Huhta, Associate Professor of European Law, Center for Climate Change, Energy and Environmental Law (CCEEL), University of Eastern Finland, Joensuu, Finland and Part-Time Professor, Florence School of Regulation, European University Institute, Italy.