Yeah dude, 0.04 % CO2 in our Air. Its a huuuuuuuge problem. Wow.
Atmosphere of Earth - Percentage
Nitrogen N2 78.084
Oxygen O2 20.946
Argon Ar 0.9340
Carbon dioxide 0.04Neon Ne 0.001818
Helium He 0.000524
Methane CH4 0.000179
https://en.wikipedia.org/wiki/Atmosphere_of_EarthWe will soon be on co2 levels that affects our cognitive abilities. It is rising quickly and we will soon all be breathing air equivalent to that in a closed room with no ventilation full of students at the end of a double class.
And that will make us all stupider.
looks like it already affected you..