One nit is that there may be a bit of warming from human use of fossil fuels, which produces little CO2 compared to other sources like undersea volcanoes (this decade spelled ‘Hunga Tonga’).
Beware of catastrophist claims of long persistence of CO2 in atmosphere, measurements at Mauna Loa rebut that.
Beware of claims of ocean acidification (in fact ocean water is chemically ‘basic’) and claims that is killing coral reefs (which bleach from ocean sloshing and virus and some fish eating them). Coral dies regardless - that’s what coral atolls are made of. Water level in the Indian and South Pacific oceans fluctuates with wind and currents, I call that sloshing on a slow scale.
The amount of climate warming from CO2 of any source is limited to a very small amount, most of which has already been realized. That’s because the overlap of spectra of carbon dioxide and the most abundant greenhouse gas dihydrogen monoxide vapour. Every doubling of CO2 only causes half of the temperature increase of the last doubling, so the effect limits (on a graph it looks asymptotic, a mathematical term, not an assumption term as catastrophists use).