TED’s 2025 Countdown Summit in Nairobi was one of highest rated conferences in TED history, with participants calling it “life-changing” and “career-defining.” Between 40 speakers, 27 intimate workshops and 15 in-field Quest Visits, breakthrough climate solutions took center stage, fundamentally shifting perspectives from overwhelmed to hopeful. The ripple effects are already emerging: catalyzing new collaborations, inspiring creators to use their influence to shift the public narrative on climate and amplifying the voices of emerging changemakers and climate leaders.

Achieved the lowest carbon footprint in TED history, met 2030 emissions goals five years early, reduced emissions from 2023 by 74%, and diverted 90% of event waste. Cultivated climate leadership with 70 countries represented, including 60 emerging leaders for the Young Leaders’ Cohort. Supercharged climate storytelling with +20 journalists who generated 72.9 million media impressions and 14 creators with +80 million in collective reach.