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American Focus > Blog > Tech and Science > World’s Richest 10% Caused Two-Thirds of Global Heating, Study Finds : ScienceAlert
Tech and Science

World’s Richest 10% Caused Two-Thirds of Global Heating, Study Finds : ScienceAlert

Last updated: May 7, 2025 6:55 pm
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World’s Richest 10% Caused Two-Thirds of Global Heating, Study Finds : ScienceAlert
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The Impact of Wealth Inequality on Global Warming

A recent study published in Nature Climate Change has shed light on the disproportionate contribution of the world’s wealthiest individuals to global warming since 1990. According to the researchers, the top 10 percent of the global population are responsible for two-thirds of the increase in greenhouse gas emissions that have led to extreme climate events such as heatwaves and droughts.

Lead author Sarah Schoengart from ETH Zurich emphasized that the consumption and investment habits of the wealthy have significantly escalated the risks of deadly heatwaves and droughts. This study is the first of its kind to quantify the impact of concentrated private wealth on extreme climate events, shifting the focus from carbon accounting to climate accountability.

The findings revealed that the richest one percent contributed 26 times more to once-in-a-century heatwaves and 17 times more to droughts in the Amazon compared to the global average. Emissions from the wealthiest individuals in countries like China and the United States have led to a two-to-threefold increase in heat extremes.

Graphic of the study findings
Increase in the frequency of 1-in-100-year peak summer heat extremes in selected regions attributable to the top 10% and 1% of emitters. (Schöngart et al., Nat. Clim. Change, 2025)

The study also highlighted the role of emissions embedded in financial investments, underscoring the need for climate action that addresses the outsized responsibilities of the wealthiest members of society.

Proposed Solutions

Senior author Carl-Friedrich Schleussner from the International Institute for Applied Systems Analysis proposed holding owners of capital accountable for their climate impacts through progressive taxes on wealth and carbon-intensive investments. Previous research has shown that taxing asset-related emissions is a more equitable approach compared to broad carbon taxes.

See also  A Physicist Explains The Explosive Birth of The Universe's Building Blocks : ScienceAlert

Despite initiatives to increase taxes on the super-rich and multinational corporations, progress has been slow. Calls for a two-percent tax on individuals with over $1 billion in assets and a global corporate tax for multinational companies have not been fully realized.

With nearly a third of the world’s billionaires hailing from the United States and the top 1 percent amassing trillions in new wealth, addressing wealth inequality and its impact on climate change remains a pressing issue.

It is crucial for policymakers and global leaders to take decisive action to hold the wealthiest individuals accountable for their contributions to global warming, ensuring a more equitable and sustainable future for all.

© Agence France-Presse

TAGGED:CausedfindsglobalheatingRichestScienceAlertStudyTwoThirdsworlds
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