Iran vs Japan: Share of global CO₂ emissions vs. share of population
Iran
2.1%
in 2024
Japan
2.5%
in 2024
Iran rank
7th
Japan rank
5th
Share of global CO₂ emissions vs. share of population over time
- Iran
- Japan
How they compare
Japan currently reports 2.5% against 2.1% in Iran, a difference of 0.4%.
That makes Japan's figure about 1.2 times Iran's.
The two have swapped places 2 times across 115 shared years of data; in 1906 it was Japan ahead.
Iran ranks 7th and Japan ranks 5th of 215 countries.
Japan has averaged higher in every one of the 13 decades both report.
Head to head by decade
| Decade | Iran | Japan | Difference | Ahead |
|---|---|---|---|---|
| 1900s | 0.0% | 1.3% | 1.3% | Japan |
| 1910s | 0.1% | 1.8% | 1.7% | Japan |
| 1920s | 0.3% | 2.2% | 1.8% | Japan |
| 1930s | 0.6% | 2.7% | 2.0% | Japan |
| 1940s | 0.8% | 2.3% | 1.4% | Japan |
| 1950s | 0.2% | 2.1% | 1.9% | Japan |
| 1960s | 0.5% | 3.5% | 3.0% | Japan |
| 1970s | 0.8% | 5.1% | 4.4% | Japan |
| 1980s | 0.7% | 4.7% | 3.9% | Japan |
| 1990s | 1.1% | 5.1% | 4.0% | Japan |
| 2000s | 1.6% | 4.4% | 2.8% | Japan |
| 2010s | 1.8% | 3.4% | 1.7% | Japan |
| 2020s | 2.1% | 2.7% | 0.6% | Japan |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher share of global co₂ emissions vs. share of population, Iran or Japan?
- Japan, at 2.5% against 2.1% in Iran as of 2024.
- What is the difference in share of global co₂ emissions vs. share of population between Iran and Japan?
- 0.4%, with Japan ahead.
- How many years of comparable data are there for Iran and Japan?
- 115 years are reported by both, from 1906 to 2024.
- How do Iran and Japan rank globally for share of global co₂ emissions vs. share of population?
- Iran ranks 7th and Japan ranks 5th of 215 countries.
- Where does this data come from?
- Global Carbon Budget (2025) – with major processing by Our World in Data, published as Share of global CO₂ emissions vs. share of population. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Annual total emissions of carbon dioxide (CO₂), excluding land-use change, measured as a percentage of global emissions of CO₂ in the same year.