Grow more plants in the ocean? Restore corals? If you remove all the CO2, how will the plants survive? Do we know the balance? Why is CO2 vilified so much?
That would help, but is a bit risky.
> Restore corals?
A good goal, but probably too tiny to matter much.
> If you remove all the CO2, how will the plants survive?
Nobody wants to remove "all the CO2".
> Do we know the balance?
Not in exact detail, but getting closer to 1900 levels would be good.
> Why is CO2 vilified so much?
Seriously? You ask this in 2021? Because it changes the weather and those rapid changes cause extinctions and habitability problems. Including killing corals.