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January 17, 2023

The ethics and effectiveness of carbon markets have long been a source of controversy. Is there a role for carbon credits in the transition to a fair, net zero future? TED Countdown asked leaders around the world to take on this thorny debate, including the science behind carbon credits, major challenges in implementing them, and creative pathways forward.

This preview is part of a longer documentary based on TED Countdown’s Dilemma Series - events that bring together credible people who disagree on a critical climate issue in order to share diverse perspectives and identify solutions. Watch the full documentary

Countdown is TED's global initiative to accelerate solutions to the climate crisis. The goal: to build a better future by cutting greenhouse gas emissions in half by 2030, in the race to a zero-carbon world. Get involved at

Learn more about #TEDCountdown:

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