Corals thrived in the Devonian and Carboniferous when atmospheric CO2 were much higher say 2 to 4% (or 2,000 to 4,000 ppm).
Sticking more CO2 into the oceans makes carbonate drop out of solution, and makes it more available to corals.
Green plants love CO2, corals love CO2. The planet absolutely loves the stuff.
The only people who don't like CO2 are ecotard lefties. People like Al Gore love CO2, they've made trillions selling the lie to idiot activist lefties who had nothing to do after the Campaign for Nuclear Disarmament died in the ass.
