You can smell rain before it arrives.

The air changes. The wind shifts. And somehow, before the first drop falls, you already know a storm is coming.

In this immersive episode of Infectious Dose, we explore the science behind that experience. We'll follow a summer storm from distant rain clouds to the microbes living beneath our feet, uncovering the roles of petrichor, geosmin, and the remarkable biology behind one of nature's most beloved scents.

Along the way, we'll explore why humans are so sensitive to the smell of rain, how storms become tied to memory, and why a single breath of cool air before a summer downpour can transport us years into the past.

Part science story. Part sensory journey. Part summer rain. 

Experience audio of a real summer storm from Heather's patio

Part of our June series: Stories of Summer Rain.

Citations in companion blog post at Infectiousdose.com

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