AiA wrote on Apr 28
th, 2017 at 7:45pm:
Of course, there is extra CO2 in the atmosphere from human activity: if humans had remained hunter-gatherers and never developed agriculture, the world would be cooler today. Likewise, had humans never existed the world would be cooler.
Yep there is extra C02 in the atmosphere due to mans emissions but its so small it doesn't even register compared to the natural CO2 budget.
Notice the sharp rise in fossil fuel CO2 emissions after 2000.
After 2000 fossil fuel emissions were 3 times the amount of fossil fuel emissions in the prior decade to 2000, that is 3 times as much fossil fuel emission went into our atmosphere after 2000 than the decade before 2000.
But the average yearly increase after 2000 just like the decade prior to 2000, average increase in CO2 remains more or less steady at 2.1ppm per year.
Fossil fuel CO2 emissions at 2.3% of the total CO2 natural emissions are insignificant and get lost in the noise.
That's why the average yearly increase of CO2 has remained steady at 2.1ppm per year even though fossil fuel emissions have shot through the roof.
Yes fossil fuels emissions contribute but the contribution is small at 2.3% of the total amount of natural CO2 that is emitted.
https://www.youtube.com/watch?v=sGZqWMEpyUM