[edsheppa]

Sorry, I still don't see the relevance to my question which is whether or not human emissions of CO2 account for the recent considerable increase in atmospheric concentration.

Could you in one or two clear sentences tell me how your pie chart can help answer that question?

[TigersEye]

The chart shows that total human contribution of Greenhouse gases is insignificant in the extreme. That renders it irrelevant to any consideration of atmospheric warming.