Too many know too little. The decline of CO2 in Earth's atmosphere is well documented in the fossil record. CO2 is breathed in by plants and is the primary molecule necessary to photosynthesis, which is the essential foundation of life on Earth upon which all ecosystems depend. Below ~190ppm almost all plants become unable to survive, and during the LGM Earth's atmosphere briefly bounced off this lower bound, reversed only by global warming forcing more CO2 to be released from the oceans, that hold more CO2 in solution the colder they are. Life on Earth faced total extinction.

Since the industrial revolution, only a couple centuries ago, CO2 has ~doubled in the atmosphere, and NASA reports that plant productivity in natural ecosystems has increased by ~30%. If you suppose people have contributed that CO2 into the atmosphere, you support the claim that we have staved off the extinction of all life on Earth, possibly by millions of years, since it took that long for that amount of CO2 to be sequestered out of the atmosphere.

Further, the fossil record reveals that CO2 is correlated to temperature, and the known temperature dependent solubility of CO2 in water is why. Atmospheric CO2 follows temperature changes as oceans absorb more CO2 when temperatures decline, and increases as temperatures rise and oceans release CO2 they can no longer maintain in solution.

AGW (anthropogenic global warming) is a demonstrable scam intended to enable transnational corporations and their investors to claim title to the CO2 upon which all life on Earth depends, and given the known predatory practices of those corporations, it is easy to predict that if they gain that power over our life and death, humanity will only survive insofar as we profit corporations, and will be genocided by ending the ability of living things to survive outside of CO2 augmented greenhouses owned by corporations, because they will reduce CO2 in the atmosphere below 190ppm causing a global extinction of all natural life on Earth and leaving those corporations the sole source of CO2, and thus life itself.

Thanks!

Currently CO2 is below 450ppm

The last time CO2 in Earth's atmosphere was this low, Earth was covered by glaciers from pole to pole for more than 50M years