per capita isn't a useful metric. Imagine if you are China and your population is declining, but your GDP is still going up so your per-capita CO2 is going up. That's not fair for them.

https://data.worldbank.org/indicator/EN.ATM.CO2E.PC?location...

At the same time, if you are a developing country and your GDP is going up, then your absolute emissions will also go up. That's not fair, either.

https://data.worldbank.org/indicator/EN.ATM.CO2E.KT?location...

So you look at emissions per dollar of GDP to measure how efficiently you are producing. This is why China's own CO2 commitments are expressed as Kg per GDP. This is what they are targeting to decline, it's what they set policy around, and it's how they publicly measure their own progress. So let's use their own preferred metric:

China's CO2 per GDP is ~.47 and dropping

For the US it's .24 and also dropping

India is .27 -- almost the same as the U.S.

https://data.worldbank.org/indicator/EN.ATM.CO2E.PP.GD?locat...