World's richest 10% responsible for two thirds of global warming, study finds

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🗞️ Driving the news: A new study published in Nature Climate Change finds that the world's wealthiest 10% are responsible for two-thirds of global warming since 1990
• The research links concentrated private wealth directly to heightened climate risks such as deadly heatwaves and droughts, urging for progressive taxation on wealth and carbon-intensive investments to mitigate future climate impacts

🔭 The context: The study marks a significant shift from traditional carbon accounting towards climate accountability, by quantifying the environmental damage attributable to different income groups
• Past efforts to tax the wealthy, including global corporate tax agreements and wealth tax proposals, have largely stalled due to political resistance, particularly with recent shifts in leadership such as Donald Trump's return to the White House

🌍 Why it matters for the planet: Addressing emissions from the wealthiest individuals is critical, as their consumption and investments disproportionately drive climate extremes
• Without targeting this segment, broader climate action risks being insufficient
• Furthermore, focusing on wealth-linked emissions offers a more equitable approach compared to broad carbon taxes, which tend to impact lower-income populations more heavily

⏭️ What's next: Advocates are likely to push for renewed discussions on wealth and investment-based taxation frameworks, especially at forums like the upcoming G20 summits
• However, political hurdles remain significant, and without strong international cooperation, tangible progress on this front may be slow
• In parallel, expect increasing scrutiny of financial markets and investment portfolios linked to high-carbon industries

💬 One quote: "Climate action that doesn't address the outsized responsibilities of the wealthiest members of society risks missing one of the most powerful levers we have to reduce future harm." — Carl-Friedrich Schleussner, International Institute for Applied Systems Analysis

📈 One stat: The richest 1% have contributed 26 times more to once-in-a-century heatwaves and 17 times more to Amazon droughts compared to the global average

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