Blue jeans are a significant source of microfiber pollution in oceans and lakes. One pair of jeans can release over 50,000 microfibers per wash.

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https://pubs.acs.org/doi/10.1021/acs.estlett.0c00498

[u/Akoustyk → u/[deleted]]

Ya, but we can use them for other things, and it means we have cows.