A new study has found that the top 10% of the world's consumers generate up to $5.7 trillion in environmental damage each year, a sum larger than the economies of all countries except the US and China. The research, published in Communications Sustainability by scientists at the University of Oxford and the University of Leiden, highlights how the wealthiest individuals disproportionately drive climate change, biodiversity loss, and pollution.
Key Findings
The study calculated the monetary impacts of climate disruption, biodiversity loss, nutrient pollution, and freshwater use. It found that the average annual environmental damage bill for someone in the global top 10% ranges from $2,300 to $7,500. For those in the US, the figure rises to between $19,000 and $63,000. High-consuming households in emerging economies, particularly China, are catching up, with top 10% consumers in China now surpassing their German counterparts in environmental damage.
Major Drivers
The most destructive forms of consumption are linked to food, especially red meat, which drives deforestation, and energy use, including air travel and heating and cooling homes, which rely on fossil fuels like gas, oil, and coal. Biodiversity loss accounts for 47-56% of the total damage, while the climate emergency contributes 36-45%.
Conservative Estimates
The authors caution that the true environmental cost is likely higher. The calculations cover only four of nine planetary boundaries and exclude the impacts of investments. Paul Behrens, a co-author and professor at the Oxford Martin School, said: “If anything, these numbers are conservative. The bill leaves out the emissions tied to wealthy people’s investments.” A Greenpeace study last week estimated that assets owned by the world’s richest 1% are associated with a quarter of global emissions and cause nearly $1 trillion in climate damage annually.
Policy Implications
The report concludes that governments could target high-consuming groups through taxes on luxury goods, wealth, and carbon. This would reduce emissions and pollution while raising revenue to support sustainability transitions and reduce inequality. Behrens added: “The top 10% are important not only because they cause the most damage but also because they hold the most leverage to reduce it. They often have outsized agency as consumers, investors, employers, and trend makers. Their power to cut emissions is even larger than their share of them.”
