CO2 percentage in earths atmosphere 10,000 years ago - Zero point zero.
CO2 percentage in earths atmosphere 1000 years ago - Zero point zero.
CO2 percentage in earths atmosphere 100 years ago - Zero point zero.
CO2 percentage in earths atmosphere 10 years ago - Zero point zero.
CO2 percentage in earths atmosphere today - Zero point zero.
Yes, we better get right on this....If we wait any longer that level could reach zero point zero then we will be in a world of s**t.
Technically it is 0.035%. Not quite zero, but close.