A different vision that the IPCC

I would like to receive opinions about human influence on "global warming" and a different vision to that of the IPCC.

Since the origin of our planet, the atmosphere composition has evolved from a "reductive" chemical composition to an oxidant one. The green-plants photosynthetic activity leads to CO2 depletion and simultaneous increasing of oxygen content in the atmosphere. What will be the future of the green-plants with a trend-to-zero CO2 content in the atmosphere?. To die. And if the plants die we die. Green-plants should prefer an inverted composition of the atmosphere. More CO2 and less O2. To accomplish that appeared the man in the nature. Our mission is to put CO2 in the atmosphere. The way is burning the stored carbon and oil under the crust. The question is how much CO2 to get a comfortable planet, not only for man but also for plants.