You're falling for a very common misconception.
CO2 doesn't lead warming, it follows it.
Once you understand this point you'll see that the whole climate change/global warming scam is just that, a scam, another way to control people.
Climate myths: Ice cores show CO<sub>2</sub> increases lag behind temperature rises, disproving the link to global warmingThis proves that rising CO2 was not the trigger that caused the initial warming at the end of these ice ages - but no climate scientist has ever made this claimwww.newscientist.com
Our relatively thin atmospheric cocoon that protects us from meteor impacts and radiation also makes for a habitable climate, thanks to the greenhouse gases it contains — carbon dioxide first and foremost.www.discovermagazine.com
<p>When the Earth comes out of an ice age, the warming is not initiated by CO2 but by changes in the Earth's orbit. The warming causes the oceans to give up CO2. The CO2 amplifies the warming and mixes through the atmosphere, spreading warming throughout the planet. So CO2 causes warming...skepticalscience.com
Historically (and by that I mean with palaeo data) that is true. There has been a lag of CO2 content trends compared to temperature trends in the natural glacial/inter-glacial cycle. I understand it, and have mentioned it previously. It's buried up thread somewhere. So it's not news to me, though it is important. It's also well documented and thoroughly accepted by climate scientists. But what is happening now is not the same. Warmer temperatures are not causing us to burn fossil fuels and emit CO2.
What scientists have predicted and then measured is that the increase in CO2 levels above the levels observed in the palaeo data, have caused the lower atmosphere to warm, whilst causing the upper atmosphere to cool. This was explained by an Evangelical Christan from Texas, who is also a well know climate scientist. She has over 80 peer reviewed papers on climate science, and believes (or rather, knows) modern climate change is manmade. She explains it in church as the extra CO2 acting like a blanket over the Earth. A little simplistic but basically the CO2 is trapping hear in the lower atmoshpere which is preventing that heat reaching the upper atmosphere, and thus it is cooling up there.
This is her: http://www.katharinehayhoe.com/wp2016/category/faith/