China vs Iran: Share of global CO₂ emissions from gas
China
11.1%
in 2024
Iran
6.2%
in 2024
China rank
2nd
Iran rank
4th
Share of global CO₂ emissions from gas over time
- China
- Iran
How they compare
China currently reports 11.1% against 6.2% in Iran, a difference of 4.9%.
That makes China's figure about 1.8 times Iran's.
The two have swapped places 5 times across 109 shared years of data; in 1911 it was Iran ahead.
China ranks 2nd and Iran ranks 4th of 146 countries.
Across the 12 decades both report, China averaged higher in 3 and Iran in 5.
Head to head by decade
| Decade | China | Iran | Difference | Ahead |
|---|---|---|---|---|
| 1910s | 0.0% | 0.0% | 0.0% | — |
| 1920s | 0.0% | 0.0% | 0.0% | — |
| 1930s | 0.0% | 0.0% | 0.0% | — |
| 1940s | 0.0% | 0.0% | 0.0% | — |
| 1950s | 0.0% | 0.2% | 0.2% | Iran |
| 1960s | 0.2% | 0.2% | 0.0% | Iran |
| 1970s | 0.7% | 0.9% | 0.2% | Iran |
| 1980s | 0.8% | 0.8% | 0.1% | China |
| 1990s | 1.0% | 1.8% | 0.8% | Iran |
| 2000s | 1.7% | 3.5% | 1.8% | Iran |
| 2010s | 5.6% | 5.0% | 0.6% | China |
| 2020s | 10.1% | 6.2% | 3.9% | China |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher share of global co₂ emissions from gas, China or Iran?
- China, at 11.1% against 6.2% in Iran as of 2024.
- What is the difference in share of global co₂ emissions from gas between China and Iran?
- 4.9%, with China ahead.
- How many years of comparable data are there for China and Iran?
- 109 years are reported by both, from 1911 to 2024.
- How do China and Iran rank globally for share of global co₂ emissions from gas?
- China ranks 2nd and Iran ranks 4th of 146 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 from gas. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Annual emissions of carbon dioxide (CO₂) from gas, measured as a percentage of global emissions of CO₂ from gas in the same year.