Contribution to global mean surface temperature rise from fossil sources in Iran
Iran: Contribution to global mean surface temperature rise from fossil sources was 0.0158 °C in 2024. ◆ Volatile
Latest (2024)
0.0158 °C
Change on year
up 2.9%
World rank
12th
of 214 countries
All-time high
0.0158 °C
in 2024
All-time low
0 °C
in 1851
Years of data
174
1851–2024
Contribution to global mean surface temperature rise from fossil sources in Iran, 1851–2024
Source: Jones et al. (2025) – with major processing by Our World in Data. Measured in °C.
Analysis
Iran recorded 0.0158 °C for contribution to global mean surface temperature rise from fossil sources in 2024. That is the highest value across all 174 years on record.
That represents a change of up 2.9% on the previous year and up 34.4% over ten years.
Over the whole period, contribution to global mean surface temperature rise from fossil sources in Iran peaked at 0.0158 °C in 2024 and was at its lowest, 0 °C, in 1851.
That places Iran 12th out of 214 countries with data for 2024, putting it in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Contribution to global mean surface temperature rise from fossil sources in Iran, year by year
| Year | °C | Change |
|---|---|---|
| 1851 | 0 °C | — |
| 1852 | 0 °C | +100.2% |
| 1853 | 0 °C | +50.1% |
| 1854 | 0 °C | +33.4% |
| 1855 | 0 °C | +25.1% |
| 1856 | 0 °C | +20.1% |
| 1857 | 0 °C | +16.8% |
| 1858 | 0 °C | +14.4% |
| 1859 | 0 °C | +12.6% |
| 1860 | 0 °C | +11.2% |
| 1861 | 0 °C | +10.1% |
| 1862 | 0 °C | +9.2% |
| 1863 | 0 °C | +8.4% |
| 1864 | 0 °C | +7.8% |
| 1865 | 0 °C | +7.2% |
| 1866 | 0 °C | +6.7% |
| 1867 | 0 °C | +6.3% |
| 1868 | 0 °C | +5.9% |
| 1869 | 0 °C | +5.6% |
| 1870 | 0 °C | +5.3% |
| 1871 | 0 °C | +5.4% |
| 1872 | 0 °C | +5.5% |
| 1873 | 0 °C | +5.5% |
| 1874 | 0 °C | +5.6% |
| 1875 | 0 °C | +5.6% |
| 1876 | 0 °C | +5.6% |
| 1877 | 0 °C | +5.6% |
| 1878 | 0 °C | +5.5% |
| 1879 | 0 °C | +5.5% |
| 1880 | 0 °C | +5.4% |
| 1881 | 0 °C | +5.3% |
| 1882 | 0 °C | +5.3% |
| 1883 | 0 °C | +5.2% |
| 1884 | 0 °C | +5.1% |
| 1885 | 0 °C | +5.0% |
| 1886 | 0 °C | +5.0% |
| 1887 | 0 °C | +4.9% |
| 1888 | 0 °C | +4.8% |
| 1889 | 0 °C | +4.7% |
| 1890 | 0 °C | +4.7% |
| 1891 | 0 °C | +4.4% |
| 1892 | 0 °C | +4.2% |
| 1893 | 0 °C | +4.0% |
| 1894 | 0 °C | +3.8% |
| 1895 | 0 °C | +3.6% |
| 1896 | 0 °C | +3.5% |
| 1897 | 0.0001 °C | +3.3% |
| 1898 | 0.0001 °C | +3.2% |
| 1899 | 0.0001 °C | +3.1% |
| 1900 | 0.0001 °C | +2.9% |
| 1901 | 0.0001 °C | +2.7% |
| 1902 | 0.0001 °C | +2.5% |
| 1903 | 0.0001 °C | +2.2% |
| 1904 | 0.0001 °C | +2.0% |
| 1905 | 0.0001 °C | +1.8% |
| 1906 | 0.0001 °C | +1.6% |
| 1907 | 0.0001 °C | +1.5% |
| 1908 | 0.0001 °C | +1.3% |
| 1909 | 0.0001 °C | +1.1% |
| 1910 | 0.0001 °C | +0.9% |
| 1911 | 0.0001 °C | +1.2% |
| 1912 | 0.0001 °C | +1.4% |
| 1913 | 0.0001 °C | +2.0% |
| 1914 | 0.0001 °C | +2.3% |
| 1915 | 0.0001 °C | +2.5% |
| 1916 | 0.0001 °C | +3.0% |
| 1917 | 0.0001 °C | +3.5% |
| 1918 | 0.0001 °C | +3.9% |
| 1919 | 0.0001 °C | +4.4% |
| 1920 | 0.0001 °C | +4.9% |
| 1921 | 0.0001 °C | +5.8% |
| 1922 | 0.0001 °C | +6.6% |
| 1923 | 0.0001 °C | +7.5% |
| 1924 | 0.0001 °C | +7.9% |
| 1925 | 0.0001 °C | +7.8% |
| 1926 | 0.0001 °C | +7.6% |
| 1927 | 0.0001 °C | +7.8% |
| 1928 | 0.0002 °C | +7.7% |
| 1929 | 0.0002 °C | +7.0% |
| 1930 | 0.0002 °C | +7.1% |
| 1931 | 0.0002 °C | +6.5% |
| 1932 | 0.0002 °C | +6.6% |
| 1933 | 0.0002 °C | +6.6% |
| 1934 | 0.0002 °C | +6.5% |
| 1935 | 0.0002 °C | +6.1% |
| 1936 | 0.0003 °C | +6.1% |
| 1937 | 0.0003 °C | +6.9% |
| 1938 | 0.0003 °C | +6.4% |
| 1939 | 0.0003 °C | +5.8% |
| 1940 | 0.0003 °C | +5.1% |
| 1941 | 0.0003 °C | +4.0% |
| 1942 | 0.0004 °C | +5.1% |
| 1943 | 0.0004 °C | +5.0% |
| 1944 | 0.0004 °C | +6.2% |
| 1945 | 0.0004 °C | +7.2% |
| 1946 | 0.0005 °C | +7.6% |
| 1947 | 0.0005 °C | +7.5% |
| 1948 | 0.0005 °C | +8.4% |
| 1949 | 0.0005 °C | +1.9% |
| 1950 | 0.0006 °C | +2.1% |
| 1951 | 0.0006 °C | +2.0% |
| 1952 | 0.0006 °C | +1.8% |
| 1953 | 0.0006 °C | +1.8% |
| 1954 | 0.0006 °C | +1.6% |
| 1955 | 0.0006 °C | +2.7% |
| 1956 | 0.0007 °C | +6.6% |
| 1957 | 0.0007 °C | +8.0% |
| 1958 | 0.0008 °C | +8.9% |
| 1959 | 0.0008 °C | +7.8% |
| 1960 | 0.0009 °C | +12.9% |
| 1961 | 0.001 °C | +10.6% |
| 1962 | 0.0011 °C | +9.7% |
| 1963 | 0.0012 °C | +9.8% |
| 1964 | 0.0014 °C | +10.5% |
| 1965 | 0.0015 °C | +10.3% |
| 1966 | 0.0017 °C | +10.4% |
| 1967 | 0.0018 °C | +10.1% |
| 1968 | 0.0021 °C | +12.1% |
| 1969 | 0.0023 °C | +10.5% |
| 1970 | 0.0025 °C | +11.4% |
| 1971 | 0.0028 °C | +10.4% |
| 1972 | 0.0031 °C | +10.3% |
| 1973 | 0.0034 °C | +11.0% |
| 1974 | 0.0038 °C | +10.4% |
| 1975 | 0.0041 °C | +8.5% |
| 1976 | 0.0045 °C | +8.2% |
| 1977 | 0.0048 °C | +7.1% |
| 1978 | 0.0051 °C | +6.0% |
| 1979 | 0.0052 °C | +3.8% |
| 1980 | 0.0053 °C | +0.9% |
| 1981 | 0.0053 °C | +0.8% |
| 1982 | 0.0054 °C | +1.7% |
| 1983 | 0.0055 °C | +1.8% |
| 1984 | 0.0056 °C | +1.3% |
| 1985 | 0.0057 °C | +1.3% |
| 1986 | 0.0057 °C | +0.8% |
| 1987 | 0.0058 °C | +0.9% |
| 1988 | 0.0058 °C | +0.3% |
| 1989 | 0.0058 °C | +1.0% |
| 1990 | 0.0059 °C | +0.7% |
| 1991 | 0.006 °C | +1.6% |
| 1992 | 0.0061 °C | +1.4% |
| 1993 | 0.0061 °C | +0.9% |
| 1994 | 0.0062 °C | +1.1% |
| 1995 | 0.0063 °C | +1.4% |
| 1996 | 0.0063 °C | +1.2% |
| 1997 | 0.0064 °C | +1.3% |
| 1998 | 0.0065 °C | +1.3% |
| 1999 | 0.0067 °C | +3.1% |
| 2000 | 0.007 °C | +4.5% |
| 2001 | 0.0073 °C | +4.3% |
| 2002 | 0.0076 °C | +3.7% |
| 2003 | 0.0079 °C | +4.2% |
| 2004 | 0.0082 °C | +4.2% |
| 2005 | 0.0086 °C | +4.3% |
| 2006 | 0.009 °C | +4.6% |
| 2007 | 0.0094 °C | +4.1% |
| 2008 | 0.0098 °C | +4.1% |
| 2009 | 0.0101 °C | +3.7% |
| 2010 | 0.0105 °C | +3.7% |
| 2011 | 0.0108 °C | +3.2% |
| 2012 | 0.0111 °C | +2.8% |
| 2013 | 0.0114 °C | +2.7% |
| 2014 | 0.0117 °C | +2.8% |
| 2015 | 0.0121 °C | +2.8% |
| 2016 | 0.0125 °C | +3.1% |
| 2017 | 0.0129 °C | +3.3% |
| 2018 | 0.0133 °C | +3.2% |
| 2019 | 0.0137 °C | +3.0% |
| 2020 | 0.014 °C | +2.7% |
| 2021 | 0.0145 °C | +3.0% |
| 2022 | 0.0149 °C | +3.0% |
| 2023 | 0.0153 °C | +2.9% |
| 2024 | 0.0158 °C | +2.9% |
Iran compared with similar countries
- Iran's 0.0158 °C is above the median for upper middle income countries, which is 0.0006 °C, 24.8× the median. (58 countries reporting)
- Iran's 0.0158 °C is above the median for Middle East, North Africa, Afghanistan & Pakistan, which is 0.0018 °C, 8.7× the median. (22 countries reporting)
Biggest year-on-year movements
Years where Contribution to global mean surface temperature rise from fossil sources in Iran changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1852 | +100.2% | 0 °C | 0 °C |
| 1853 | +50.1% | 0 °C | 0 °C |
| 1854 | +33.4% | 0 °C | 0 °C |
| 1855 | +25.1% | 0 °C | 0 °C |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1850s | 0 °C | 0 °C | 0 °C | 9 |
| 1860s | 0 °C | 0 °C | 0 °C | 10 |
| 1870s | 0 °C | 0 °C | 0 °C | 10 |
| 1880s | 0 °C | 0 °C | 0 °C | 10 |
| 1890s | 0 °C | 0 °C | 0.0001 °C | 10 |
| 1900s | 0.0001 °C | 0.0001 °C | 0.0001 °C | 10 |
| 1910s | 0.0001 °C | 0.0001 °C | 0.0001 °C | 10 |
| 1920s | 0.0001 °C | 0.0001 °C | 0.0002 °C | 10 |
| 1930s | 0.0002 °C | 0.0002 °C | 0.0003 °C | 10 |
| 1940s | 0.0004 °C | 0.0003 °C | 0.0005 °C | 10 |
| 1950s | 0.0006 °C | 0.0006 °C | 0.0008 °C | 10 |
| 1960s | 0.0015 °C | 0.0009 °C | 0.0023 °C | 10 |
| 1970s | 0.0039 °C | 0.0025 °C | 0.0052 °C | 10 |
| 1980s | 0.0056 °C | 0.0053 °C | 0.0058 °C | 10 |
| 1990s | 0.0063 °C | 0.0059 °C | 0.0067 °C | 10 |
| 2000s | 0.0085 °C | 0.007 °C | 0.0101 °C | 10 |
| 2010s | 0.012 °C | 0.0105 °C | 0.0137 °C | 10 |
| 2020s | 0.0149 °C | 0.014 °C | 0.0158 °C | 5 |
Countries ranked near Iran
More climate change data for Iran
- Spring temperature anomalies 0.0713 °C (2026)
- Summer temperature anomalies 1.08 °C (2026)
- Temperature anomalies by month 0.2419 °C (2026)
- Share of global CO₂ emissions and population 0.8% (2100)
- Population, total, annual growth rate 0.9283 % change on previous year (2025)
- Population, total, per unit of GDP 0.0003 units per US$ of GDP (2025)
- Urban population, annual growth rate 1.39 % change on previous year (2025)
- Urban population, per unit of GDP 0.0002 units per US$ of GDP (2025)
- Urban population, per capita 0.7738 units per person (2025)
- Precipitation anomalies, annual growth rate -620.65 % change on previous year (2025)
Frequently asked questions
- What is contribution to global mean surface temperature rise from fossil sources in Iran?
- Contribution to global mean surface temperature rise from fossil sources in Iran was 0.0158 °C in 2024, according to Jones et al. (2025) – with major processing by Our World in Data.
- What is the highest contribution to global mean surface temperature rise from fossil sources recorded in Iran?
- The highest recorded value was 0.0158 °C in 2024.
- What is the lowest contribution to global mean surface temperature rise from fossil sources recorded in Iran?
- The lowest recorded value was 0 °C in 1851.
- How does Iran rank for contribution to global mean surface temperature rise from fossil sources?
- Iran ranks 12th out of 214 countries with data for 2024.
- Is contribution to global mean surface temperature rise from fossil sources rising or falling in Iran?
- Over the last ten years it is up 34.4%. The long-run trend across the full record is volatile.
- Where does this Iran data come from?
- The figures come from Jones et al. (2025) – with major processing by Our World in Data, published as part of Contribution to global mean surface temperature rise from fossil sources. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 174 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Measured in °C.