[ospray]

The globe is mostly water. Ocean fertilization make a lot more sense than this for a whole bunch of reasons. The inter-continental sea floor automatically freezes all carbon that goes down there most of it is stored as methane. Just need a fleet of nuclear powered fertilizer ships to kick it off hopefully you get more fish as a result. https://en.m.wikipedia.org/wiki/Ocean_fertilization

[cynusx]

No need for fertilizer ships.

The delivery of material to the center of Ocean vertices is essentially free. Any floating body winds up there eventually

I wrote about it here: https://noverloop.substack.com/p/how-to-leverage-the-plastic...

[ckrapu]

One downside: you have to ship all the carbon to the coast. Transport is a non-negligible consideration for all of this. Ideally, you just grow a ton of switchgrass in northern US / Canada / Siberia and store it nearby.

[sqeaky]

This is a downside, but big flat boats floating down river don't seem like big carbon releasers, bonus points if they use solar/wind to get back up river.

[rjvs]

Wouldn’t the bonus points be better allocated to making the boats from the carbon you’re wanting to sequester, so they don’t have to go back up-river?

[AstralStorm]

Unfortunately the plan is very dangerous as tectonic activity has a tendency to release it plus any hurricane or monsoon or thaiphoon or such has a tendency to destroy the installation or worse, move it somewhere where it will do damage to the ecosystem.

Also, use solar and wind ships instead. We don't need to sink more nuclear material...