I think they're referencing PLA, polylactic acid. It takes a while to fully break down, but it still does degrade. https://en.wikipedia.org/wiki/Polylactic_aci

I think they're referencing PLA, polylactic acid. It takes a while to fully break down, but it still does degrade. https://en.wikipedia.org/wiki/Polylactic_acid https://en.wikipedia.org/wiki/Polylactic_acid