🤖 AI Summary
This study addresses the fundamental question of whether global basic human wellbeing can be sustainably guaranteed for all. Method: It pioneers an “sufficiency justice” framework by integrating multidimensional wellbeing thresholds with planetary boundaries (e.g., climate, land use, material flows), moving beyond growth-oriented paradigms. Combining multiregional input–output analysis, life cycle assessment, wellbeing metrics modeling, and scenario simulation, the study quantifies the labor requirements and material–energy footprints needed to achieve a universally decent standard of living. Contribution/Results: Current global resource use exceeds planetary boundaries by a factor of 3.5; yet universal attainment of dignified living standards would require only 76% of current global labor time and 1.8 times current aggregate resource throughput. The findings empirically demonstrate that a socially inclusive, ecologically sustainable degrowth pathway is both feasible and just—providing a rigorous theoretical foundation and quantitative evidence for transformative sustainability policy.