The Global Justice Report seeks to develop a new vision of global progress for the 21st century: one that grounds human development and equality in the long-term habitability of the planet. It examines the conditions under which the world could move toward this goal and outlines an economically and ecologically coherent transformation pathway for the period from 2026 to 2100.

Its central conclusion is straightforward: it is possible to reconcile planetary habitability with high levels of prosperity for all. However, this can only be achieved if the transformation rests on three pillars simultaneously. Rapid decarbonization of energy systems is essential. Beyond that, a fundamental shift toward sufficiency is required, including a substantial reduction in working time and material consumption, as well as profound changes in consumption patterns, diets, land use, and forest cover. Moreover, neither decarbonization nor sufficiency can be financed or sustained politically without a drastic reduction in inequalities of income, wealth, and power—both between countries and within them. Reducing global inequality is not merely compatible with deep decarbonization; it is a necessary condition for shared prosperity on a finite planet.

The Global Justice Report represents the first attempt to provide a fully quantified plan in this direction. It brings together four dimensions that are often treated separately in contemporary debates: global redistribution, a far-reaching reform of the international financial and economic order, a radical transformation of energy systems, and substantial changes in consumption patterns. Compared with most climate scenarios, including those developed by the Intergovernmental Panel on Climate Change (IPCC), its key innovation lies in modelling all four dimensions simultaneously, while placing inequality and sufficiency at the centre of the analysis.