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US vs Japan CO2 per capita
United States has held the lead throughout the published window. In 1970 Japan stood at roughly 37% of United States’s CO2 per capita; today the figure is about 58%, and the pair was closest in 2012 (63%).
| Year | United States | Japan | Japan as % of US |
|---|---|---|---|
| 1960 | 22.41 | 8.21 | 37% |
| 1970 | 22.41 | 8.21 | 37% |
| 1980 | 21.04 | 8.59 | 41% |
| 1990 | 19.96 | 9.41 | 47% |
| 2000 | 21.01 | 9.8 | 47% |
| 2010 | 17.85 | 9.5 | 53% |
| 2020 | 13.47 | 8.4 | 62% |
| 2024 | 13.62 | 7.84 | 58% |
Frequently asked questions
When did United States pass Japan in CO2 per capita?
It has not come to that. United States has posted the larger CO2 per capita in every published year (1970–2024).
How do United States and Japan compare today?
United States is ahead: 13.62 against 7.84 — the trailing economy stands at about 58% of the leader.
Are these CO2 per capita figures nominal or adjusted?
They are exactly as the World Bank publishes them — metric tons per capita — with no interpolation or estimation for missing years.
Full series
Every published year for both economies, with charts, downloads and citations: