[tfolbrecht]

PLA is biodegradable. For the things I print, I usually smooth them with PVA as it's biodegradable. As far as pigments go, I have no clue what's in most commercial stuff I think they're the main caveat for truly biodegradable 3d printing.

[ainiriand]

It is biodegradable, that is correct, it just takes around 80 years to do so.

Can you justify it?

[throwaway3699]

80 years is not the issue. It's the stuff that will be around forever, and in the oceans, that's trouble.