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128 - Science Behind 4 Smells You Notice Outdoors
Ever walked past a bog and wondered why it smells nothing like your backyard after a rainstorm? Or caught that sharp green scent of fresh-cut grass and had no idea it’s actually a plant screaming for help? In this episode I go down a research rabbit hole into the chemistry behind the smells we associate with the outdoors, and it turns out almost none of them mean what we assume they mean.
The rain smell has a name, and it’s not what causes it. Petrichor is the word for the scent after rain hits dry ground, but the compound your nose is actually detecting is geosmin, a byproduct of soil…
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