Horizons

Each week, explore science, health, and technology headlines with leading experts.

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Jan 30

Horizons
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How PFAS harm our health — and why they're everywhere

What do non-stick pans, firefighting foam and many of our couches, carpets and cosmetics have in common? They’re all made with PFAS. The so-called forever chemicals helped spur innovation, but they’re also insidious to human health. Horizons moderator William Brangham…

Jan 23

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Why Earth's melting glaciers matter more than we think

Ice in the Arctic and Antarctica plays a critical role in maintaining life on Earth, and it is melting faster than previously thought. This is threatening our planet with potentially massive sea-level rise, weather disruptions and further global warming. Horizons…

Jan 16

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MAHA has a plan to clean up the American diet. Will it work?

Ultra-processed foods make up more than half the average American diet and they’re linked to rising rates of obesity and heart disease. Health Secretary Robert F. Kennedy Jr. says the Trump Administration has a solution. But will this plan really…