The world’s richest 0.1% of people are responsible for more carbon pollution than the poorest 3.5 billion people combined, according to an Oxfam analysis released ahead of the COP31 climate summit in Türkiye. The top group comprises about eight million people, making the finding a stark measure of how emissions are concentrated among a small share of the global population.

Oxfam said its work combines carbon-inequality data with climate-attribution models. It estimates that an individual in the richest 0.1% has contributed nearly 400 times more to present-day extreme heatwaves than a person in the poorest half of humanity. Collectively, the group’s pollution is more than three times the emissions attributed to the 1.3 billion people living in Sub-Saharan Africa.

The results are advocacy-group estimates rather than a direct census of every person’s emissions. They depend on the datasets and modeling choices detailed in Oxfam’s report and methodology. Even with that qualification, the analysis focuses attention on a central policy problem: the people with the greatest carbon footprint often have the most financial capacity to avoid immediate climate harm, while poorer communities face greater exposure and fewer options for recovery.

Private aviation is one example cited by the organization. Oxfam argues that private jets illustrate the gap between luxury consumption and the emissions of people whose energy use is much lower. The group also says wealth can buy access to safer homes, private insurance and specialized protection, while floods, fires and crop losses can exhaust the savings and livelihoods of households with less money.

The report goes beyond personal emissions to examine the business of disaster response. Oxfam projects that the global disaster-recovery market will expand from $70 billion to $92 billion annually by 2029. Its new Destroy & Rebuild Index identifies 217 companies with business interests spanning industries that contribute to climate change and activities connected to preparedness, rebuilding or recovery.

According to Oxfam, BlackRock and Vanguard hold investments in 92% of the companies listed in that index, with a combined value exceeding $1 trillion. The organization uses those holdings to argue that some financial institutions can benefit both from carbon-intensive activity and from spending generated by its consequences. The supplied evidence does not establish that every listed investment directly caused a particular disaster, so that broader argument remains Oxfam’s interpretation of the ownership data.

The organization also estimates that emissions from the richest 1% have reduced global economic output by $2.9 trillion since 1990 and could raise that cumulative loss to $52.6 trillion by 2050. It expects the heaviest burden to fall on countries that contributed least to historical warming.

Oxfam is urging governments at COP31 to address emissions inequality alongside total emissions. Its report frames climate policy not only as a question of reducing carbon, but also of deciding who pays, who is protected and who benefits from the spending triggered by climate damage.