Jørgen Wettestad is Research Professor at the Fridtjof Nansen Institute in Oslo, Norway. His most recent books are The Evolution of Carbon Markets: Design and Diffusion, Routledge 2018 (edited with Lars H. Gulbrandsen and Rescuing EU Emissions Trading: The Climate Policy Flagship. Palgrave 2016 (together with Torbjørg Jevnaker). He has been a visiting scholar at IIASA, Austria; the Institute for International Studies, Berkeley, CA; and Harvard University, Cambridge, MA. Wettestad has been editorial board member of the journal Climate Policy since 2001 and participates as Lead Author in WG III in IPCC’s Sixth Assessment Report.