Of course they do. Photosynthesis 101. Also, water vapour is the most abundant, strongest absorbing, most effective green house gas (not refuted). And it is directly correlated with amount of incoming (earth atmosphere reaching) cosmic radiation (inc. solar), which is in turn modulated strongly the (lack of) strength of the earth's magnetic field, which as it happens is weakening (not refuted).

Very very simple. Has been known since 1970s... Nothing new under the sun.

It's all a scam.

https://climate.nasa.gov/news/2436/co2-is-making-earth-greenerfor-now/

I tried explaining this to a lefty (less eloquently) and they just gave me the NPC stare and changed topic, SMH. You can say anti carbon regulation, is anti life on earth regulation.