The new study by the World Inequality Lab argues that two goals long presented as competing can be achieved together: higher living standards and a more livable climate. According to the report, if the global economy is radically reorganized, both extreme inequality can be reduced and warming can be kept below 2 degrees by the end of the century.
Published under the name "Global Justice Report," the study is not just a technical climate plan but also offers a broad transformation proposal addressing income, working hours, health, education, and wealth distribution together. The authors emphasize that welfare, equality, and climate stability should be considered parts of the same project.
The central idea of the study
According to the report, unlimited consumption is not necessary for a good life. Instead, shorter working hours, better health and education services, clean energy, changing eating habits, reduced pressure on land, and narrowing the gap between the rich and everyone else are highlighted.
In the model's central scenario, the average monthly income per capita among countries is expected to balance at around 5,000 euros by 2100. This picture points to faster growth in poor regions and slower increases in today's richest economies. However, the report argues that since income will be more equally distributed and people will have more time outside paid work, most people in rich countries will also benefit.
According to the report, about 90% of the world population could double their monetary income by the end of the century. Considering the increase in free time and the damage prevented by controlling warming, the study's calculation shows that more than 99% will be better off.
Sharp decline in working hours
One of the most striking headlines of the report is the large reduction in working hours. While the annual labor hours per capita are currently around 2,100, they could fall to about 1,000 by 2100. The authors describe this as a continuation of the long-term decline already seen in many countries since the 19th century.
This approach aims not only for less work but also to direct human labor towards care, education, health, culture, and lower-carbon sectors. The report argues that a shorter workweek could improve quality of life.
Equal pay and domestic labor
The study also sees gender equality as an integral part of the transformation. According to the model, women and men will be equalized in pay, and the sharing of paid and domestic labor will be balanced. The authors say that a fairer sharing of work inside and outside the home is a credible measure for social progress.
The report emphasizes that this goal is important not only for social justice but also for economic and environmental sustainability. It argues that without reducing inequality, a lasting foundation for sustainability cannot be established.
Energy transformation is essential for the climate
According to the study, rapid exit from fossil fuels is still mandatory to stay within climate limits. It states that electricity must be produced from low-carbon sources by mid-century, and large investments in renewable energy, electrification, and cleaner industrial processes are needed.
However, the report says technology alone will not be enough. If consumption habits, land use, and income distribution do not change, both the financing and political sustainability of the energy transformation become difficult.
Wealth tax, global fund, and new order
One of the main tools proposed in the report is the Global Justice Fund. It is suggested that this fund be financed by a tax on global wealth and a top income tax on the richest 1% worldwide. The resources are expected to be used for climate investments, health, education, and country-based payments, especially in poor countries.
The study also calls for a world sovereignty fund, new international monetary mechanisms, and rebalancing voting power in institutions like the IMF and World Bank. The authors clearly note that the proposed structure requires a much larger financial scale compared to the current order.
According to the report, the Global Justice Fund could use resources averaging 10.3% of the world’s gross domestic product between 2026 and 2060. This rate points to a level much higher than the combined budgets of the United Nations, IMF, and World Bank with current official development aid. The rationale is clear: in the coming decades, even for climate investments alone, the world economy may need resources amounting to 3 to 4% annually.
Major change in wealth distribution
The study also foresees a radical transformation in wealth distribution. In the model, the share of the poorest half of humanity in global wealth is expected to rise from 2% to 30%, while the share of billionaires is expected to fall from 6% to 0.05%.
The authors define this not only as a matter of justice but also as climate logic. It is reminded that the richest groups disproportionately benefit from high-carbon growth and hold a significant portion of the capital needed for transformation.
Authors' message and political obstacle
The authors include names like Thomas Piketty and Lucas Chancel. While describing the plan as "radical," they argue that the alternative is a future shaped by deepening inequality, climate collapse, and political instability.
According to the report, the main obstacle is not technical impossibility but political choice. Global wealth taxes, a new international financial order, and a managed transition against overconsumption may face strong resistance from groups benefiting from the current order.
Still, the study raises another possibility against the pessimistic picture. The report argues that when the numbers are set correctly, a fair, healthy, and sustainable world is mathematically possible; equality is not a side element against the environmental crisis but one of the conditions of the solution.