leftwinger
Diamond Member
Yes atmospheric CO2 is a rather small percentage however it is THE MAIN GREENHOUSE GAS IN OUR ATMOSPHERE. Or it was until surpassed most recently by CH4.
Although, if you want to understand atmospheric gas concentrations we are going to have to agree on the standard unit of measure, which is PPM in the case of CO2
PPM or % not matter? (% of makeup or PPM are a stat of measure). you lose me there?
Secondly CO2 was always a % of atmosphere, correct? Before Oil. How do we know they measured it correctly in 1821? Now it a bit higher? 0.0394% or 394ppm very small.
THE MAIN GREENHOUSE GAS IN OUR ATMOSPHERE: I am no expert (here to learn) but I have been told this gas is produced by plants.