China (People’s Republic of) vs Iran, Islamic Republic of: Nitrous oxide (N2O) emissions from Transport (Energy)

China (People’s Republic of)
23.15 Mt CO2e
in 2024
Iran, Islamic Republic of
4.51 Mt CO2e
in 2024
China (People’s Republic of) rank
1st
Iran, Islamic Republic of rank
4th

Nitrous oxide (N2O) emissions from Transport (Energy) over time

  • China (People’s Republic of)
  • Iran, Islamic Republic of
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How they compare

China (People’s Republic of) currently reports 23.15 Mt CO2e against 4.51 Mt CO2e in Iran, Islamic Republic of, a difference of 18.64 Mt CO2e.

That makes China (People’s Republic of)'s figure about 5.1 times Iran, Islamic Republic of's.

The two have swapped places 2 times across 55 shared years of data; in 1970 it was China (People’s Republic of) ahead.

China (People’s Republic of) ranks 1st and Iran, Islamic Republic of ranks 4th of 194 countries.

China (People’s Republic of) has averaged higher in every one of the 6 decades both report.

Head to head by decade

Decade China (People’s Republic of) Iran, Islamic Republic of Difference Ahead
1970s 0.2304 Mt CO2e 0.1429 Mt CO2e 0.0874 Mt CO2e China (People’s Republic of)
1980s 0.3305 Mt CO2e 0.2797 Mt CO2e 0.0508 Mt CO2e China (People’s Republic of)
1990s 0.9734 Mt CO2e 0.6825 Mt CO2e 0.291 Mt CO2e China (People’s Republic of)
2000s 7 Mt CO2e 1.27 Mt CO2e 5.73 Mt CO2e China (People’s Republic of)
2010s 16.23 Mt CO2e 3.72 Mt CO2e 12.5 Mt CO2e China (People’s Republic of)
2020s 22.05 Mt CO2e 4.36 Mt CO2e 17.69 Mt CO2e China (People’s Republic of)

Averages of every year both report within each decade.

Frequently asked questions

Which has higher nitrous oxide (n2o) emissions from transport (energy), China (People’s Republic of) or Iran, Islamic Republic of?
China (People’s Republic of), at 23.15 Mt CO2e against 4.51 Mt CO2e in Iran, Islamic Republic of as of 2024.
What is the difference in nitrous oxide (n2o) emissions from transport (energy) between China (People’s Republic of) and Iran, Islamic Republic of?
18.64 Mt CO2e, with China (People’s Republic of) ahead.
How many years of comparable data are there for China (People’s Republic of) and Iran, Islamic Republic of?
55 years are reported by both, from 1970 to 2024.
How do China (People’s Republic of) and Iran, Islamic Republic of rank globally for nitrous oxide (n2o) emissions from transport (energy)?
China (People’s Republic of) ranks 1st and Iran, Islamic Republic of ranks 4th of 194 countries.
Where does this data come from?
EDGAR (Emissions Database for Global Atmospheric Research) Community GHG Database, Joint Research Centre (JRC) - European Commission, published as Nitrous oxide (N2O) emissions from Transport (Energy) (Mt CO2e). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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China (People’s Republic of) vs Iran, Islamic Republic of: Nitrous oxide (N2O) emissions from Transport (Energy). Statizoid, drawing on EDGAR (Emissions Database for Global Atmospheric Research) Community GHG Database, Joint Research Centre (JRC) - European Commission. Retrieved 23 August 2026, from https://environment.statizoid.com/compare/nitrous-oxide-n2o-emissions-from-transport-energy-mt-co2e/china/iran-islamic-rep/

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About this data

Indicator
Nitrous oxide (N2O) emissions from Transport (Energy) (Mt CO2e)
Unit
Mt CO2e
Source
EDGAR (Emissions Database for Global Atmospheric Research) Community GHG Database, Joint Research Centre (JRC) - European Commission
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
241 places, 13,255 data points, 1970–2024
Last refreshed

A measure of annual emissions of nitrous oxide (N2O), one of the six Kyoto greenhouse gases (GHG), from the transportation sector (subsector of the energy sector) including IPCC 2006 codes 1.A.3.a Civil Aviation, 1.A.3.b_noRES Road Transportation no resuspension, 1.A.3.c Railways, 1.A.3.d Water-borne Navigation, 1.A.3.e Other Transportation. The measure is standardized to carbon dioxide equivalent values using the Global Warming Potential (GWP) factors of IPCC's 5th Assessment Report (AR5).