[ars]

Something else will eat them. Even a human could.

Doesn't matter what eats them, after digestion, the CO2 is back in the atmosphere.

If you actually want to do this, you can't just leave them in the wild, you have to breed them in massive quantity and bury them. Same as growing a tree and burying it.

[codecamper]

George Church figured they'd just collect and then sink. not much life down there and once it is deep enough, it might be deep enough to perma-sequester.