Iran vs South Africa: Contribution to global mean surface temperature rise
Iran
0.0178 °C
in 2024
South Africa
0.0167 °C
in 2024
Iran rank
15th
South Africa rank
18th
Contribution to global mean surface temperature rise over time
- Iran
- South Africa
How they compare
Iran currently reports 0.0178 °C against 0.0167 °C in South Africa, a difference of 0.0011 °C.
That makes Iran's figure about 1.1 times South Africa's.
The two have swapped places 6 times across 174 shared years of data; in 1851 it was Iran ahead.
Iran ranks 15th and South Africa ranks 18th of 215 countries.
Across the 18 decades both report, Iran averaged higher in 8 and South Africa in 10.
Head to head by decade
| Decade | Iran | South Africa | Difference | Ahead |
|---|---|---|---|---|
| 1850s | 0 °C | 0 °C | 0 °C | Iran |
| 1860s | 0.0001 °C | 0 °C | 0 °C | Iran |
| 1870s | 0.0001 °C | 0.0001 °C | 0 °C | Iran |
| 1880s | 0.0002 °C | 0.0002 °C | 0 °C | Iran |
| 1890s | 0.0003 °C | 0.0003 °C | 0 °C | Iran |
| 1900s | 0.0004 °C | 0.0004 °C | 0.0001 °C | South Africa |
| 1910s | 0.0005 °C | 0.0007 °C | 0.0002 °C | South Africa |
| 1920s | 0.0006 °C | 0.001 °C | 0.0004 °C | South Africa |
| 1930s | 0.0008 °C | 0.0014 °C | 0.0006 °C | South Africa |
| 1940s | 0.001 °C | 0.0019 °C | 0.0009 °C | South Africa |
| 1950s | 0.0014 °C | 0.0028 °C | 0.0013 °C | South Africa |
| 1960s | 0.0025 °C | 0.0039 °C | 0.0013 °C | South Africa |
| 1970s | 0.0052 °C | 0.0052 °C | 0 °C | Iran |
| 1980s | 0.007 °C | 0.0069 °C | 0.0001 °C | Iran |
| 1990s | 0.008 °C | 0.0093 °C | 0.0013 °C | South Africa |
| 2000s | 0.0105 °C | 0.0118 °C | 0.0014 °C | South Africa |
| 2010s | 0.014 °C | 0.0144 °C | 0.0004 °C | South Africa |
| 2020s | 0.0169 °C | 0.0162 °C | 0.0007 °C | Iran |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher contribution to global mean surface temperature rise, Iran or South Africa?
- Iran, at 0.0178 °C against 0.0167 °C in South Africa as of 2024.
- What is the difference in contribution to global mean surface temperature rise between Iran and South Africa?
- 0.0011 °C, with Iran ahead.
- How many years of comparable data are there for Iran and South Africa?
- 174 years are reported by both, from 1851 to 2024.
- How do Iran and South Africa rank globally for contribution to global mean surface temperature rise?
- Iran ranks 15th and South Africa ranks 18th of 215 countries.
- Where does this data come from?
- Jones et al. (2025) – with major processing by Our World in Data, published as Contribution to global mean surface temperature rise. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Measured in °C.