What does it take for local actors in Hammarby Sjöstad to cut the consumption-based emissions by half till 2030? : A backcasting study on a local climate transition following Carbon Law

Sammanfattning: How many local actors need to do what to reduce Hammarby Sjöstad’s climate impact till 2030 in alignment with "Carbon Law”, i.e. halving the citizens’ consumption-based emissions every ten years? This is demonstrated in a backcasting study of the city district. The local actors’ reduction potentials concerning ground transport, food, housing, aviation and other consumption are explored in individual transitions. The quantitative city district scenario scales up the individual transitions to city district level, asking how many local actors must do how much, starting when, for the Sjöstad’s target to be reached? The overarching backcasting has both prognostic and explorative elements but is essentially normative. It is both quantitative and qualitative, addressing the two main questions what does it take and by whom? The result shows that the city district’s aim is feasible only if Stockholm City and other external actors fulfil their climate targets and the technological development continues to advance. These are external contributions shaping the local actors’ field of options. Furthermore, the result shows that a vast majority of the households must utilize a substantial part of their full potential for the target to be met. New organizational models and actor networks must also emerge for the transition to launch. The scenario’s qualitative part illustrates the need for energy managers, local supermarkets, car sharing companies etc. to become agents of change. The transition is further catalyzed by local network builder and transition agent ElectriCITY.