Just curious what an inverted reality of ours would be like, where instead of having too much carbon dioxide in the atmosphere creating glasshouse gas effect, what would the inverse be like where we don’t have enough carbon dioxide in our atmosphere? What would the climate of earth be like?
Frozen, but…
Who cares? Everything important would be dead. Photosynthesizing plants require CO2 to live.
https://en.wikipedia.org/wiki/Carbon_dioxide_in_Earth's_atmosphere#:~:text=Carbon dioxide concentrations dropped from,per million 20%2C000 years ago .