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● Data for 2020 is also presented in  Popovich, Nadja; Plumer, Brad (12
November 2021). [ "Who Has The Most Historical Responsibility for Climate
Change?"
](https://www.nytimes.com/interactive/2021/11/12/climate/cop26-emissions-
compensation.html) . _The New York Times_ . [ Archived
](https://web.archive.org/web/20211229053102/https://www.nytimes.com/interactive/2021/11/12/climate/cop26-emissions-
compensation.html) from the original on 29 December 2021.  
● Source for country populations:  [ "List of the populations of the world's
countries, dependencies, and territories"
](https://www.britannica.com/print/article/2156538) . Encyclopedia Britannica.