Australia vs Iran, Islamic Republic of: Cumulative CO₂ emissions, gaps filled

Australia
20.04 billion tonnes
in 2024
Iran, Islamic Republic of
21.81 billion tonnes
in 2024
Australia rank
17th
Iran, Islamic Republic of rank
15th

Cumulative CO₂ emissions, gaps filled over time

  • Australia
  • Iran, Islamic Republic of
05.0B10.0B15.0B20.0B175018872024

How they compare

Iran, Islamic Republic of currently reports 21.81 billion tonnes against 20.04 billion tonnes in Australia, a difference of 1.77 billion tonnes.

That makes Iran, Islamic Republic of's figure about 1.1 times Australia's.

The two have swapped places 1 time across 115 shared years of data; in 1906 it was Australia ahead.

Australia ranks 17th and Iran, Islamic Republic of ranks 15th of 215 countries.

Across the 13 decades both report, Australia averaged higher in 12 and Iran, Islamic Republic of in 1.

Head to head by decade

Decade Australia Iran, Islamic Republic of Difference Ahead
1900s 229.88 million tonnes 3,664 tonnes 229.87 million tonnes Australia
1910s 403.14 million tonnes 5.66 million tonnes 397.48 million tonnes Australia
1920s 638.98 million tonnes 75.32 million tonnes 563.66 million tonnes Australia
1930s 912.67 million tonnes 265.09 million tonnes 647.58 million tonnes Australia
1940s 1.28 billion tonnes 590.37 million tonnes 687.38 million tonnes Australia
1950s 1.83 billion tonnes 854.43 million tonnes 979.92 million tonnes Australia
1960s 2.72 billion tonnes 1.19 billion tonnes 1.52 billion tonnes Australia
1970s 4.14 billion tonnes 2.16 billion tonnes 1.98 billion tonnes Australia
1980s 6.14 billion tonnes 3.62 billion tonnes 2.53 billion tonnes Australia
1990s 8.80 billion tonnes 5.70 billion tonnes 3.10 billion tonnes Australia
2000s 12.27 billion tonnes 9.35 billion tonnes 2.92 billion tonnes Australia
2010s 16.26 billion tonnes 14.94 billion tonnes 1.32 billion tonnes Australia
2020s 19.27 billion tonnes 20.24 billion tonnes 971.58 million tonnes Iran, Islamic Republic of

Averages of every year both report within each decade.

Frequently asked questions

Which has higher cumulative co₂ emissions, gaps filled, Australia or Iran, Islamic Republic of?
Iran, Islamic Republic of, at 21.81 billion tonnes against 20.04 billion tonnes in Australia as of 2024.
What is the difference in cumulative co₂ emissions, gaps filled between Australia and Iran, Islamic Republic of?
1.77 billion tonnes, with Iran, Islamic Republic of ahead.
How many years of comparable data are there for Australia and Iran, Islamic Republic of?
115 years are reported by both, from 1906 to 2024.
How do Australia and Iran, Islamic Republic of rank globally for cumulative co₂ emissions, gaps filled?
Australia ranks 17th and Iran, Islamic Republic of ranks 15th of 215 countries.
Where does this data come from?
Statizoid (derived), published as Cumulative CO₂ emissions, gaps filled. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Australia vs Iran, Islamic Republic of: Cumulative CO₂ emissions, gaps filled. Statizoid, drawing on Statizoid (derived). Retrieved 16 September 2026, from https://climate.statizoid.com/compare/cumulative-co2-emissions-gaps-filled/australia/iran-islamic-rep/

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About this data

Indicator
Cumulative CO₂ emissions, gaps filled
Unit
tonnes
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
215 places, 23,492 data points, 1750–2024
Last refreshed

Cumulative CO₂ emissions with 84 missing years estimated by linear interpolation between the nearest real observations. Only gaps of 4 years or fewer are filled, and never beyond the first or last actual measurement — these are filled holes, not forecasts.