China vs Iran: CO₂ emissions by sector
China
430.34 million tonnes
in 2023
Iran
162.73 million tonnes
in 2023
China rank
2nd
Iran rank
4th
CO₂ emissions by sector over time
- China
- Iran
How they compare
China currently reports 430.34 million tonnes against 162.73 million tonnes in Iran, a difference of 267.61 million tonnes.
That makes China's figure about 2.6 times Iran's.
Across all 34 years both countries report, China has been ahead every year.
China ranks 2nd and Iran ranks 4th of 187 countries.
China has averaged higher in every one of the 4 decades both report.
Head to head by decade
| Decade | China | Iran | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 347.59 million tonnes | 65.63 million tonnes | 281.97 million tonnes | China |
| 2000s | 341.93 million tonnes | 108.48 million tonnes | 233.45 million tonnes | China |
| 2010s | 480.01 million tonnes | 125.59 million tonnes | 354.42 million tonnes | China |
| 2020s | 440.24 million tonnes | 154.34 million tonnes | 285.90 million tonnes | China |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher co₂ emissions by sector, China or Iran?
- China, at 430.34 million tonnes against 162.73 million tonnes in Iran as of 2023.
- What is the difference in co₂ emissions by sector between China and Iran?
- 267.61 million tonnes, with China ahead.
- How many years of comparable data are there for China and Iran?
- 34 years are reported by both, from 1990 to 2023.
- How do China and Iran rank globally for co₂ emissions by sector?
- China ranks 2nd and Iran ranks 4th of 187 countries.
- Where does this data come from?
- Climate Watch (2026) – with major processing by Our World in Data, published as CO₂ emissions by sector. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Emissions are measured in tonnes.