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Le 4 juin dernier, le World Inequality Lab (WIL) a lancé le « Global Justice Project », un programme destiné à « stimuler la recherche, l’élaboration des politiques et l’engagement citoyen afin de façonner un 21ème siècle plus juste, plus démocratique et plus durable ». Pour l’heure, il prend la forme d’un rapport, A Plan for Equality & Prosperity Within Planetary Boundaries, qui prolonge sept working papers du WIL – près de 970 pages de travail scientifique. L’effort est colossal. Comme le résume l’un des co-auteurs de l’étude, l’économiste Lucas Chancel, spécialiste des inégalités (Insoutenables inégalités, 2021) et de l’énergie (Énergie et inégalités, 2025) : « 24 mois de travail, 45 chercheurs venus du monde entier, combinant les connaissances issues de l’économie, de l’histoire et des sciences du climat ». À l’échelle de l’histoire de la macroéconomie, c’est l’équivalent d’une pyramide.

For most of the modern era, capitalism justified itself through growth. Industrial societies converted vast amounts of fossil energy into production, wealth, and rising living standards. Roads, bridges, power grids, schools, and public institutions expanded alongside the economy. Inequality and exploitation remained deeply embedded in the system, but they were partly obscured by a broader story of material progress.

Misschien is het probleem niet dat toekomstscenario's zoals die van het Global Justice Report onhaalbaar zijn, maar dat ze net iets te veel vragen stellen over onze huidige realiteit.

L’humanité peut améliorer les niveaux de vie, réduire les inégalités et maintenir le réchauffement climatique en dessous d’une hausse de 2 °C, selon une vision ambitieuse de la survie de la planète rapportée la semaine dernière par The Guardian. À une époque marquée par l’angoisse écologique, c’est une affirmation remarquablement optimiste. Cet optimisme provient du Global Justice Report, élaboré par le World Inequality Lab de Thomas Piketty. […] Ce rapport va à contre-courant de l’époque actuelle. La démagogie anti-immigration, le retour en grâce des combustibles fossiles, les attaques contre le multilatéralisme et la captation du pouvoir par les milliardaires s’opposent tous à la capacité redistributive de l’État que le rapport juge nécessaire. Pourtant, l’équipe du professeur Piketty affirme que la décarbonation, la « sobriété » et l’égalité peuvent permettre à la majorité de mener une vie agréable.

Olivier De Schutter says new economic agenda needed to tackle crises of rising inequality and ecological collapse

Rapport sur les Inégalités Mondiales 2026 […] Coordination Lucas Chancel Ricardo Gómez-Carrera (auteur principal) Rowaida Moshrif Thomas Piketty Avant-propos Jayati Ghosh Joseph E. Stiglitz

World Inequality Report 2026

Data from World Inequality Report also showed top 10% of income-earners earn more than the other 90%

 Luke is a research associate at the Centre for the Study of Existential Risk at the University of Cambridge, and has spent the past five years studying the collapse of civilisations throughout history. He joins me to explain his research, detailing the difference between complex, collective civilisations and what he calls “Goliaths”, massive centralising forces by which a small group of individuals extract wealth from the rest through domination and the threat of violence. Today, he says, we live in a global Goliath. In this astounding conversation, Luke takes us from the Ancient times to the modern day, revealing the root causes of collapse and paralleling them what we’re living through today. He explains the egalitarian nature of our species, and shines new light on what a future could look like free from today’s global Goliath. He reminds us all that we tend to view collapse through the eyes of the 1%, those who have the most to lose, and gives startling accounts of how populations bounced back after thei

We are an international group of researchers and practitioners interested in the emerging fields of post-growth and ecological macroeconomics. Our aim is to advance economic theory, methodology and policy in order to adequately address some of the biggest challenges of our time: climate change, rising inequality, and financial instability.

An epic analysis of 5,000 years of civilisation argues that a global collapse is coming unless inequality is vanquished

The Global Justice Project is a collective research initiative developed by the World Inequality Lab. Combining comparative historical data series from the World Inequality Database with global input-output tables, environmental accounts, labour force surveys and other sources, the project explores what a just distribution of socio-economic and environmental resources could look like at the global level from 2025 to 2100 – both between and within countries – in a way that is compatible with planetary boundaries. The project partly builds on the analysis and proposals set out in Thomas Piketty’s Brief History of Equality, extending them into a broader and more comprehensive global framework. The Global Justice Project is now available to explore on a dedicated website, that includes an interactive tool to explore the distributional pathways and climate scenarios behind the report.

Misguided policies are hurting the poorest in society; our focus should be on reducing inequality not increasing GDP

Canadian author and professor of climate justice cautiously hails loss and damage agreements at Cop27. " I think the most important thing is to just find other people. Trying to think through this by yourself is a recipe for feeling like a failure and getting dispirited very, very quickly. The benefit of being part of a broader movement is knowing that some people are doing some things, and other people are doing other things, and nobody has to do everything."

The climate crisis has begun to disrupt human societies by severely affecting the very foundations of human livelihood and social organisation. Climate impacts are not equally distributed across the world: on average, low- and middle-income countries suffer greater impacts than their richer counterparts. At the same time, the climate crisis is also marked by significant inequalities within countries. Recent research reveals a high concentration of global greenhouse gas emissions among a relatively small fraction of the population, living in emerging and rich countries. In addition, vulnerability to numerous climate impacts is strongly linked to income and wealth, not just between countries but also within them.