Small tiny problem with that theory is A. CO2 has a limiter on it in the form of something called plants and plant life, you might have heard of those. B. CO2 is a fraction of a percent of the total mass of the gas mix we call air, hence for there to be observable, and quantifiable effect would require massive change in the mass fraction of the air mix of CO2. (Note natural sources out strip humans by a very large margin in producing CO2.) C. Thirdly and definitely not least is science cannot possibly tell if the rate change of C02 is NOT normal and part of the normal cycle with anything remotely close to certainty simply because of the coarseness of past data. We have a good idea what normal CO2 levels tend to be and they vary widely from 140ppm to 7000+ppm. That's a fairly wide band not mention the rate changes we are seeing have occurred before as you yourself have pointed out, as best the current state of the science can tell. Last I checked we didn't have any SUV's way back then. We have a good idea of what the range of the normal cycle numbers should be, problem is we are well within range of the channel those numbers form and therefore the climate we have now is for all intents and purposes is normal. For the climate to abnormal the currant climates measurements have to be beyond the current channel to have a reasonable argument to say that there IS a problem A. and B. we might be the cause of it.
I am not burying my head in the sand. I am being skeptical of shoddy "scientific" arguments used to try and impact my life and take my money. Remember way back when the ozone hole was this huge thing and that we have to do something about it. So we had to use different Freon and change out propellants in canned spray products. Well turns out that whole deal was bull****. Fool me once.
By the way the hottest years on record meme is just that a meme. It has no basis in fact. Here something to read.
https://thsresearch.files.wordpress.com/2017/05/ef-gast-data-research-report-062717.pdf
