no it isn’t palmer- man’s respionsibility amounts to 3.8% of the TOTAL amount of all greenhosue gases and CO2- naqtural and manmade- that amount is 0.04%
3.8% of 0.04% = 0.00136% of the atmosphere
sorry- that should have read 3.4% of 0.04% = 0.00136%
Some have the estimate of man’s release of CO2 up to 3.8- but most sites state it’s around 3.4%