2 million IQ points lost per day
Lead poisoning causes an estimated 2 million IQ points to be permanently lost in children every single day worldwide.
Snapshot · TED Talks Daily
The deadly threat affecting millions — and how to prevent it | Drew McCartor
Explore episode
Jul 10, 2026
Where this was said
Drew McCartor's Talk Begins: The Real-Time IQ Loss Counter
At 8:22 · chapter starts 4:21
Standing on the TED stage at TED2026, Drew McCartor delivers his opening with visual punch: behind him, a screen counts upward in real time, tracking IQ points being permanently stolen from children by lead poisoning. Because this is an audio format, host Elise Hu steps in to paint the picture — a black background, large white numbers already well below 100 and climbing fast, captioned 'Real-time IQ loss.' McCartor explains that by the end of the day, the number will exceed 2 million, then reset and do it again tomorrow, and every day after, until the world acts. It's a device that transforms an abstract global statistic into something viscerally immediate — a clock counting down not time, but human potential. The moment sets the register for the entire talk: urgent, specific, and grounded in data rather than sentiment.
Two Million IQ Points Lost — Every Single Day
By the end of every day, lead poisoning permanently destroys an estimated 2 million IQ points in children worldwide. Tomorrow it happens again. And the day after that — until we solve it.
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