Comment by sergiotapia

This is (one of the many) reasons why I care primarily about biodiversity and preventing as many human-caused extinctions as we can. Those are a permanent loss to the beauty and complexity of the universe built up over millions of years, and they are permanent and irreversible.

the easiest solution is growing dense vegetation including trees, then using that for things[0] or burying it until we have a better mitigation strategy for atmospheric carbon.

Another solution, and one that, if i weren't such a lazy, is ocean based carbon binding. You can run electricity directly through ocean water and precipitate the carbon out as calcium carbonate, which is both: useful to humans as is and after processing; and useful to the coral reefs and crustaceans/mollusks or whatever in the oceans.

If anyone wants to kick me about a million US dollars, i can make a POC on a used barge with solar panels and as much recycled material as possible, and have that just run off the coast of florida or something. I figure the total cost to get a barge is around a quarter million, all-in[1], the electronics and seawater stuff is about another $150-200 thousand, and the rest is mine for the idea and the lawyers' to get this approved and left alone to do the research.

[0] burning it for heat is fine, as the net CO2 levels will remain constant, but i mean things like houses and boardwalks and boats, furniture, and so on.

[1] could be more, now, the last time i was researching seaworthy barge costs it was between $100,000 and $200,000. I'm hoping there's someone that can donate the barge so i can make the rest more fit for purpose - redundancy, better solar, better mppt, better batteries, better materials for the electrodes (it takes platinum and titanium iirc, i haven't looked at my documents for a long while.)

The earth will recover. We may not, but earth will.