Brazil vs Iran: Share of global greenhouse gas emissions
Brazil
5.2%
in 2024
Iran
1.9%
in 2024
Brazil rank
4th
Iran rank
7th
Share of global greenhouse gas emissions over time
- Brazil
- Iran
How they compare
Brazil currently reports 5.2% against 1.9% in Iran, a difference of 3.3%.
That makes Brazil's figure about 2.8 times Iran's.
Across all 175 years both countries report, Brazil has been ahead every year.
Brazil ranks 4th and Iran ranks 7th of 199 countries.
Brazil has averaged higher in every one of the 18 decades both report.
Head to head by decade
| Decade | Brazil | Iran | Difference | Ahead |
|---|---|---|---|---|
| 1850s | 1.1% | 0.2% | 0.9% | Brazil |
| 1860s | 1.2% | 0.2% | 1.0% | Brazil |
| 1870s | 1.2% | 0.3% | 1.0% | Brazil |
| 1880s | 1.7% | 0.3% | 1.4% | Brazil |
| 1890s | 1.7% | 0.3% | 1.5% | Brazil |
| 1900s | 2.1% | 0.2% | 1.9% | Brazil |
| 1910s | 3.1% | 0.2% | 2.9% | Brazil |
| 1920s | 3.7% | 0.3% | 3.4% | Brazil |
| 1930s | 2.6% | 0.4% | 2.2% | Brazil |
| 1940s | 3.5% | 0.5% | 3.0% | Brazil |
| 1950s | 4.6% | 0.3% | 4.2% | Brazil |
| 1960s | 5.4% | 0.7% | 4.8% | Brazil |
| 1970s | 5.0% | 1.0% | 4.0% | Brazil |
| 1980s | 5.6% | 0.7% | 4.9% | Brazil |
| 1990s | 6.5% | 1.1% | 5.4% | Brazil |
| 2000s | 6.7% | 1.4% | 5.3% | Brazil |
| 2010s | 4.8% | 1.6% | 3.3% | Brazil |
| 2020s | 5.2% | 1.8% | 3.4% | Brazil |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher share of global greenhouse gas emissions, Brazil or Iran?
- Brazil, at 5.2% against 1.9% in Iran as of 2024.
- What is the difference in share of global greenhouse gas emissions between Brazil and Iran?
- 3.3%, with Brazil ahead.
- How many years of comparable data are there for Brazil and Iran?
- 175 years are reported by both, from 1850 to 2024.
- How do Brazil and Iran rank globally for share of global greenhouse gas emissions?
- Brazil ranks 4th and Iran ranks 7th of 199 countries.
- Where does this data come from?
- Jones et al. (2025) – with major processing by Our World in Data, published as Share of global greenhouse gas emissions. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Measured as a percentage of the world's greenhouse gas emissions.