Year-on-year change in CO₂ emissions in Iran
Iran: Year-on-year change in CO₂ emissions was 2.96 million tonnes in 2024. ◆ Volatile
Latest (2024)
2.96 million tonnes
Change on year
down 86.9%
World rank
25th
of 215 countries
All-time high
68.81 million tonnes
in 1999
All-time low
-69.82 million tonnes
in 1949
Years of data
113
1912–2024
Year-on-year change in CO₂ emissions in Iran, 1912–2024
Source: Global Carbon Budget (2025) – with major processing by Our World in Data. Measured in tonnes.
Analysis
Iran recorded 2.96 million tonnes for year-on-year change in co₂ emissions in 2024.
Compared with earlier readings it is down 86.9% on the previous year and down 91.4% over ten years.
Over the whole period, year-on-year change in co₂ emissions in Iran peaked at 68.81 million tonnes in 1999 and was at its lowest, -69.82 million tonnes, in 1949.
Iran ranks 25th of 215 countries on this measure, in the top quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Year-on-year change in CO₂ emissions in Iran, year by year
| Year | tonnes | Change |
|---|---|---|
| 1912 | 117,248 tonnes | — |
| 1913 | 600,896 tonnes | +412.5% |
| 1914 | 318,768 tonnes | -47.0% |
| 1915 | 230,832 tonnes | -27.6% |
| 1916 | 604,560 tonnes | +161.9% |
| 1917 | 791,424 tonnes | +30.9% |
| 1918 | 648,528 tonnes | -18.1% |
| 1919 | 872,032 tonnes | +34.5% |
| 1920 | 1.12 million tonnes | +28.2% |
| 1921 | 1.82 million tonnes | +62.6% |
| 1922 | 1.97 million tonnes | +8.5% |
| 1923 | 2.35 million tonnes | +19.3% |
| 1924 | 1.93 million tonnes | -18.1% |
| 1925 | 696,160 tonnes | -63.9% |
| 1926 | 857,376 tonnes | +23.2% |
| 1927 | 1.64 million tonnes | +91.5% |
| 1928 | 978,288 tonnes | -40.4% |
| 1929 | -655,856 tonnes | -167.0% |
| 1930 | 1.49 million tonnes | -327.4% |
| 1931 | -589,904 tonnes | -139.6% |
| 1932 | 2.17 million tonnes | -467.1% |
| 1933 | 2.00 million tonnes | -7.8% |
| 1934 | 1.41 million tonnes | -29.5% |
| 1935 | -153,888 tonnes | -110.9% |
| 1936 | 2.21 million tonnes | -1538.1% |
| 1937 | 6.14 million tonnes | +177.3% |
| 1938 | 87,936 tonnes | -98.6% |
| 1939 | -1.73 million tonnes | -2062.5% |
| 1940 | -2.92 million tonnes | +69.4% |
| 1941 | -6.31 million tonnes | +115.6% |
| 1942 | 8.71 million tonnes | -238.1% |
| 1943 | 923,386 tonnes | -89.4% |
| 1944 | 11.20 million tonnes | +1113.4% |
| 1945 | 11.24 million tonnes | +0.3% |
| 1946 | 7.34 million tonnes | -34.7% |
| 1947 | 3.24 million tonnes | -55.9% |
| 1948 | 14.48 million tonnes | +347.7% |
| 1949 | -69.82 million tonnes | -582.1% |
| 1950 | 1.47 million tonnes | -102.1% |
| 1951 | -2.69 million tonnes | -282.7% |
| 1952 | -2.82 million tonnes | +5.0% |
| 1953 | -263,868 tonnes | -90.6% |
| 1954 | -2.78 million tonnes | +955.3% |
| 1955 | 14.77 million tonnes | -630.4% |
| 1956 | 6.99 million tonnes | -52.6% |
| 1957 | -1.01 million tonnes | -114.4% |
| 1958 | 3.43 million tonnes | -440.2% |
| 1959 | 340,068 tonnes | -90.1% |
| 1960 | 11.79 million tonnes | +3366.9% |
| 1961 | -849,840 tonnes | -107.2% |
| 1962 | 919,664 tonnes | -208.2% |
| 1963 | 3.88 million tonnes | +321.5% |
| 1964 | 6.21 million tonnes | +60.3% |
| 1965 | 6.20 million tonnes | -0.2% |
| 1966 | 10.38 million tonnes | +67.5% |
| 1967 | 3.78 million tonnes | -63.6% |
| 1968 | 14.45 million tonnes | +282.5% |
| 1969 | 709,184 tonnes | -95.1% |
| 1970 | 8.75 million tonnes | +1133.6% |
| 1971 | 9.84 million tonnes | +12.5% |
| 1972 | 4.39 million tonnes | -55.4% |
| 1973 | 23.46 million tonnes | +434.7% |
| 1974 | 14.30 million tonnes | -39.1% |
| 1975 | -4.56 million tonnes | -131.9% |
| 1976 | 17.28 million tonnes | -479.0% |
| 1977 | 7.32 million tonnes | -57.7% |
| 1978 | -1.52 million tonnes | -120.7% |
| 1979 | 848,608 tonnes | -155.9% |
| 1980 | -42.44 million tonnes | -5101.4% |
| 1981 | -7.42 million tonnes | -82.5% |
| 1982 | 24.86 million tonnes | -434.9% |
| 1983 | 11.90 million tonnes | -52.1% |
| 1984 | 372,336 tonnes | -96.9% |
| 1985 | 10.09 million tonnes | +2608.7% |
| 1986 | -12.18 million tonnes | -220.8% |
| 1987 | 11.04 million tonnes | -190.6% |
| 1988 | 16.62 million tonnes | +50.6% |
| 1989 | 15.16 million tonnes | -8.8% |
| 1990 | 19.96 million tonnes | +31.7% |
| 1991 | 11.97 million tonnes | -40.0% |
| 1992 | 5.15 million tonnes | -57.0% |
| 1993 | 8.80 million tonnes | +70.8% |
| 1994 | 27.83 million tonnes | +216.3% |
| 1995 | 6.05 million tonnes | -78.2% |
| 1996 | 5.74 million tonnes | -5.1% |
| 1997 | -7.36 million tonnes | -228.1% |
| 1998 | 36.38 million tonnes | -594.4% |
| 1999 | 68.81 million tonnes | +89.2% |
| 2000 | -7.24 million tonnes | -110.5% |
| 2001 | 22.70 million tonnes | -413.6% |
| 2002 | 7.12 million tonnes | -68.6% |
| 2003 | 13.94 million tonnes | +95.7% |
| 2004 | 31.15 million tonnes | +123.6% |
| 2005 | 24.68 million tonnes | -20.8% |
| 2006 | 34.22 million tonnes | +38.7% |
| 2007 | 6.76 million tonnes | -80.3% |
| 2008 | 20.76 million tonnes | +207.2% |
| 2009 | 14.88 million tonnes | -28.3% |
| 2010 | 18.09 million tonnes | +21.6% |
| 2011 | 14.87 million tonnes | -17.8% |
| 2012 | 22.91 million tonnes | +54.1% |
| 2013 | 10.72 million tonnes | -53.2% |
| 2014 | 34.23 million tonnes | +219.4% |
| 2015 | -2.27 million tonnes | -106.6% |
| 2016 | 2.72 million tonnes | -220.0% |
| 2017 | 51.73 million tonnes | +1800.5% |
| 2018 | -31.88 million tonnes | -161.6% |
| 2019 | 62.75 million tonnes | -296.8% |
| 2020 | 18.33 million tonnes | -70.8% |
| 2021 | 33.93 million tonnes | +85.1% |
| 2022 | -12.35 million tonnes | -136.4% |
| 2023 | 22.50 million tonnes | -282.2% |
| 2024 | 2.96 million tonnes | -86.9% |
Iran compared with similar countries
- Iran's 2.96 million tonnes is above the median for upper middle income countries, which is 98,432 tonnes, 30.0× the median. (58 countries reporting)
- Iran's 2.96 million tonnes is above the median for Middle East, North Africa, Afghanistan & Pakistan, which is 216,764 tonnes, 13.6× the median. (23 countries reporting)
Biggest year-on-year movements
Years where Year-on-year change in CO₂ emissions 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 |
|---|---|---|---|
| 1980 | -5101.4% | 848,608 tonnes | -42.44 million tonnes |
| 1960 | +3366.9% | 340,068 tonnes | 11.79 million tonnes |
| 1985 | +2608.7% | 372,336 tonnes | 10.09 million tonnes |
| 1939 | -2062.5% | 87,936 tonnes | -1.73 million tonnes |
| 2017 | +1800.5% | 2.72 million tonnes | 51.73 million tonnes |
| 1936 | +1538.1% | -153,888 tonnes | 2.21 million tonnes |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1910s | 523,036 tonnes | 117,248 tonnes | 872,032 tonnes | 8 |
| 1920s | 1.27 million tonnes | -655,856 tonnes | 2.35 million tonnes | 10 |
| 1930s | 1.30 million tonnes | -1.73 million tonnes | 6.14 million tonnes | 10 |
| 1940s | -2.19 million tonnes | -69.82 million tonnes | 14.48 million tonnes | 10 |
| 1950s | 1.74 million tonnes | -2.82 million tonnes | 14.77 million tonnes | 10 |
| 1960s | 5.75 million tonnes | -849,840 tonnes | 14.45 million tonnes | 10 |
| 1970s | 8.01 million tonnes | -4.56 million tonnes | 23.46 million tonnes | 10 |
| 1980s | 2.80 million tonnes | -42.44 million tonnes | 24.86 million tonnes | 10 |
| 1990s | 18.33 million tonnes | -7.36 million tonnes | 68.81 million tonnes | 10 |
| 2000s | 16.90 million tonnes | -7.24 million tonnes | 34.22 million tonnes | 10 |
| 2010s | 18.39 million tonnes | -31.88 million tonnes | 62.75 million tonnes | 10 |
| 2020s | 13.07 million tonnes | -12.35 million tonnes | 33.93 million tonnes | 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 year-on-year change in co₂ emissions in Iran?
- Year-on-year change in co₂ emissions in Iran was 2.96 million tonnes in 2024, according to Global Carbon Budget (2025) – with major processing by Our World in Data.
- What is the highest year-on-year change in co₂ emissions recorded in Iran?
- The highest recorded value was 68.81 million tonnes in 1999.
- What is the lowest year-on-year change in co₂ emissions recorded in Iran?
- The lowest recorded value was -69.82 million tonnes in 1949.
- How does Iran rank for year-on-year change in co₂ emissions?
- Iran ranks 25th out of 215 countries with data for 2024.
- Is year-on-year change in co₂ emissions rising or falling in Iran?
- Over the last ten years it is down 91.4%. The long-run trend across the full record is volatile.
- Where does this Iran data come from?
- The figures come from Global Carbon Budget (2025) – with major processing by Our World in Data, published as part of Year-on-year change in CO₂ emissions. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 113 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Annual growth in total emissions of carbon dioxide (CO₂), excluding land-use change, measured in tonnes.