https://ourworldindata.org/grapher/annual-co2-emissions-per-...
https://ourworldindata.org/grapher/annual-co2-emissions-per-...
Sadly shows China going up, sharply until 2011, then more modestly. The latest 2023 data shows 8t/capita where the EU average is about 6 (not every EU country is rich, but sounds like that ought to be enough for a decent lifestyle) and US 14
And how does their current value compare to the US?
1. China is still trending up and the US is still trending down. It's dangerous to make straight-line projections but they are on trend to meet at some point.
2. The US per capita emissions appear to be on a steady downward trend since 1850. This is even more obvious if you discount the anomalous periods of the civil war and the Great Depression. You have to admit, that's something that demands unpacking.
https://www.dropbox.com/scl/fi/s4fy286y7gwpqgmeltark/Screens...
Edit: Looks like Mongolia, Saudi Arabia, Bahrain, Kuwait, Qatar, and the UAE have the honour of being at the top actually. Might not be a comprehensive list.