https://newrepublic.com/article/176558/emissions-rich-people-problem
Efforts to curb climate change are failing. That’s partly due to the staggering contributions of the global elite.
It's worth noting that Americans also must spend that income in a similarly-inflated market, so it doesn't much matter what their salary would be worth in, say, Uganda. I think any such comparison of global wealth runs into these sorts of issues.
Someone earning in the global top 10% may not be able to afford a house locally. Someone earning in the top 30% may not be able to afford rent and food at the same time in their locale. It makes the percentile meaningless.
Yep, this is after all adjustments using the United Nations SNA 2008. It's not perfect, but it's the closest we have for accounting for those differences.