There’s nothing quite like the unique smell after it rains.
That scent is called petrichor. The term was coined in 1964 by Australian scientists. What we’re actually smelling is a combination of oils secreted by happy plants and bacteria released from the ground by the rain. The petrichor, in combination with ozone, which smells a bit like chlorine, creates that fresh, earthy scent that we’ve come to love.
Our love of petrichor is an inherited one from our ancestors, who relied on wet weather for survival.
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