Man made contributions to that are 3.225% of that .03%.
Years and years ago the kids were getting indoctrinated at school on the global warming crap.
If you look at ALL of the greenhouse gases and their percent that they contribute, water vapor has the largest effect. Back then they estimated that human’s caused 0.25% of total effect.
So, I dumped 100 pennies on the table after dinner one night. Got out the white-out and covered 1/4 of one of the pennies in white.
“Okay kids. That is the amount of greenhouse effect humans have on the entire thing. Even if we cut that white dot in half - how much difference will it make?”
Presently it’s 414 PPM. which translates to 0.04%.
That assumes that NOAA isn’t cooking the books (unlikely) and the real level is likely closer to 300 PPM