Richest 10% Responsible for Two-Thirds of Climate Warming Since 1990, Study Finds

Richest 10% Responsible for Two-Thirds of Climate Warming Since 1990, Study Finds

A new study published in Nature Climate Change reveals that the world’s wealthiest 10% are responsible for nearly two-thirds of global climate warming since 1990 — a stark illustration of how economic inequality fuels the climate crisis.

Using integrated climate models and economic data, researchers found that the top 1% of earners contribute 20 times more to climate-related damage than the bottom 99%. Since 2019 alone, the top 10% have accounted for nearly half of all global emissions, primarily through private consumption and investment. In contrast, the world’s poorest 50% contributed just one-tenth of emissions.

“If everyone had emitted like the bottom 50%, the world would have seen minimal additional warming since 1990,” said co-author Carl-Friedrich Schleussner.

The study also highlights how wealth, not just consumption, plays a central role. By analyzing investments and global trade — not just personal spending — researchers identified a systemic problem: emissions are heavily tied to property ownership, corporate control, and the global financial system.

Critics argue that for years, responsibility has been unfairly shifted onto consumers while major polluters and shareholders evade accountability. “To mainstream commerce, the Earth is both loot and dump,” wrote journalist George Monbiot, emphasizing how unsustainable economic systems drive environmental degradation.

The findings reinforce calls for systemic climate policy reform, pointing to the need for regulating the carbon footprint of the ultra-wealthy and shifting the burden away from the most vulnerable.