Great question! The reason why I was using the 2017 report is that the Guardian arrival you originally referred to was from 2017, so I looked at the report they were working off of.

That is sensible, yes.

I regards to the graph you posted, it shows how emissions from private comps is have fallen and emissions from nations and nation owned companies have rissen. I think this is a relevant distinction to make, because the meme and the report as they are show a one sided picture (capitalism is the sole drive of climate change) whilst, looking at the complete data, a more nuanced picture emerges (like the role of nations in upholding the capitals system).