Ajax wrote on Feb 15^th, 2020 at 10:56am:


Clearly you don't understand the carbon cycle 



Before the Industrial Revolution there were approximately

680 billion tonnes per year of natural CO₂ emissions and

680 billion tonnes per year of natural CO₂ absorption

This resulted in about 280 ppm of CO₂ in the atmosphere

That is called the carbon cycle


In the 21st century emissions have increased due to human activities

emissions = 680 billion tonnes (natural) + 9 billion tonnes (human) = 689 billion tonnes (total)

absorption = 681 billion tonnes (I have allowed for a slight rise due to a greater forcing)



So, do the maths Ajax. In 2020 we have 689 billion tonnes of emissions but only 681 billion tonnes of absorption. 

That additional 8 billion tonnes is human activity and is why the CO₂ concentration has risen from 280 ppm to 410 ppm and still rising