It's a hot day, and you're lolling around feeling sticky, lazy, and cranky from the heat. Then big, fat gray clouds roll in. The air shifts and suddenly fat raindrops are plopping onto the ground. Then it hits you — that earthy "fresh rain" smell. It's lovely (and nostalgic) for most of us, but what is it exactly? Science has the answer.
Watch: Where Does the Smell of Rain Come From?
Blame It on Bacteria
Written by Jessica Stillman September 21, 2018
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