Development and justice through transformation: The Four Big ‘I’s. Special ReportF.KraasauthorC.LeggewieauthorP.LemkeauthorE.MatthiesauthorD.MessnerauthorN.NakicenovicauthorH.J.SchellnhuberauthorS.SchlackeauthorU.SchneidewindauthorC.BrandiauthorS.BuschauthorF.HanuschauthorM.KösterauthorM.KrollauthorC.LooseauthorI.PauliniauthorB.PilardeauxauthorT.SchlüterauthorG.SchönebergauthorA.SchulzauthorB.StephanauthorJ.SutterauthorK.VinkeauthorH.WallisauthorM.Wannerauthor2015 saw a historic double success for sustainability and climate policy. The 2030 Agenda for Sustainable Development, with its Sustainable Development Goals (SDGs), and the Paris Agreement on climate ­protection establish a system of ambitious policy goals for the world. The group of twenty major ­industrialized and emerging economies (G20) now needs to resolutely advance implementation of both agreements, seizing the opportunity of this ‘Great Transformation’ to sustainability as a unique ­modernization project that could offer substantial economic development opportunities. Complete ­decarbonization of the world economy, which is necessary to avoid the gravest climate risks, can only be achieved by profoundly ­transforming energy systems and other high-emissions infrastructures. This transformation could inspire ­Innovation and channel Investment into sustainability and climate protection, and into the kinds of ­sustainable Infrastructures that need to be ­established and expanded. At the same time, the transformation could combat inequality and promote ­Inclusion within societies and globally, thus becoming an equity project.2016WBGU - German Advisory Council on Global ChangeBook