Quantifying the energy and emissions implications of consumption redistribution in the UK through sustainable consumption corridors.

Reducing inequality to ensure decent living standards alongside climate mitigation, are frequently posited as dual goals of a just transition. Energy sufficiency has received attention as a solution to these crises, but there has been limited exploration of the impact sufficiency principles could have on energy and GHG emissions. Addressing this gap, we utilise a consumption-corridor approach to develop three redistributive scenarios of final consumption for the UK. Each scenario ensures all households meet essential needs and facilitates social participation, whilst varying the level of consumption redistribution. These scenarios are modelled using the UK Multi-Regional Input Output model to estimate the impact of redistribution on the consumption-based energy and emissions footprints of 13 household types. We find that reductions in consumption inequality can support reductions in GHG emissions and energy use, but only if the consumption of higher-income consumers is limited to near equality in expenditure. We also find significant shifts in the composition of consumption resulting from redistribution that may support climate mitigation, such as reduced car use and flying, particularly in scenarios where higher household consumption is curtailed. We conclude that economic inequality must be integrated into climate mitigation modelling to develop effective solutions.