But the planet needs to have a certain level of Co2 to survive. 100 million years ago there was far more Co2 in the atmosphere than today. Where is it? It's been converted into Chalk and Limestones and other Carboniferous rocks. Chalk or Calcite is calcium carbonate or CaCO3. It forms under reasonably deep marine conditions from the gradual accumulation of minute calcite shells (coccoliths) shed from micro-organisms called coccolithophore.
I have no doubt the planet will survive whatever mankind can throw at it -- even if we were to deliberatly crash asteroids into the planet it would survive, and life would thrive, I don't think we're technically able to transform Earth into a Venus or Mars, at least at the moment.
I don't care about the planet. I care about my family, and to a lesser extent the rest of the human race.
There is strong evidence that CO2 levels are rising
There is strong evidence that global temperatures are increasing
There is strong evidence that this is linked to water shortages
There is strong evidence that great swathes of land will be under water
Correlation is not causation, however I don't want water shortages, refugees escaping flood water, and failed whisky crops, all that costs money, none of it affects the planet.
Will reducing manmade CO2 emissions reduce the impact? Well it will reduce the levels that CO2 is rising by, perhaps that will lead to global temperatures not increasing as much.
Because so much of the planets Co2 has been turned to chalk and because we have reduced the burning of fossil fuel drastically we are in danger of starving the planet from this essential building block of life.
Where does the calcium come from? How quickly do you think that chalk is produced?
If CO2 levels did start dropping, that will be an easy fix, we simply start burning coal and oil again to raise them. In the meantime we'll have separated our industries from the reliance on the middle east.