On Today's Podcast

Tracking The Toxic Fallout Of The LA Fires

Urban fires can release all kinds of chemicals. One year after fires hit Los Angeles, scientists are trying to understand the toxic fallout.

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Today's Broadcast

January 23, 2026

An epidemiology study finds that variations in one gene play a major role in determining the risk of Alzheimer’s disease. Plus, X’s Grok AI is undressing users, but it’s just the tip of the iceberg with fake imagery online. What can we do about deepfakes? And, Louisiana communities continue collecting data on industrial pollution, despite a law restricting its use.

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Video

Bamboo Bicycles Roll Out

To be bike-ready, the bamboo must be cooked in an oven, stripped, and sealed. We visited the workshop of Valid Cycles in Woodinville, Washington, to see how the bikes are made.

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