Tax the rich — and save the planet

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Esther Duflo |

TED Countdown Summit 2025

• June 2025

Nobel Prize-winning economist Esther Duflo brings her data-driven precision to the climate crisis — and the numbers are damning. While world leaders haggle over finances at endless summits, rising temperatures will kill millions in the poorest countries by the end of this century. She calculates the staggering cost of wealthy nations pumping greenhouse gases into the atmosphere, proving that getting billionaires to pay their fair share in taxes is the best way to cover these damages.