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What would happen if 8 billion people simultaneously urinated into the Grand Canyon?

Popkin
Mar 15, 2025
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Photo: Shutterstock

What would happen if everyone in the entire world peed into the Grand Canyon at the same time? One might think that the pee would at least fill up a noticeable portion of the canyon, but that is false. The amount of pee produced by 8 billion people at once would still be no match for the vastness of the Grand Canyon.

The Grand canyon c…

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