How many years of comparable data are there for Hong Kong and Iraq?

55 years are reported by both, from 1970 to 2024.

Where does this data come from?

Statizoid (derived), published as Nitrous oxide (N2O) emissions from Building (Energy) (Mt CO2e), per capita. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Hong Kong vs Iraq: Nitrous oxide (N2O) emissions from Building (Energy) (Mt CO2e), per

Hong Kong

0 Mt CO2e per person

in 2024

Iraq

0 Mt CO2e per person

in 2024

Hong Kong rank

187th

Iraq rank

185th

Nitrous oxide (N2O) emissions from Building (Energy) (Mt CO2e), per over time

Hong Kong
Iraq

How they compare

Iraq currently reports 0 Mt CO2e per person against 0 Mt CO2e per person in Hong Kong, a difference of 0 Mt CO2e per person.

That makes Iraq's figure about 2.0 times Hong Kong's.

The two have swapped places 3 times across 55 shared years of data; in 1970 it was Hong Kong ahead.

Hong Kong ranks 187th and Iraq ranks 185th of 197 countries.

Iraq has averaged higher in every one of the 6 decades both report.

Head to head by decade

Decade	Hong Kong	Iraq	Difference	Ahead
1970s	0 Mt CO2e per person	0 Mt CO2e per person	0 Mt CO2e per person	Iraq
1980s	0 Mt CO2e per person	0 Mt CO2e per person	0 Mt CO2e per person	Iraq
1990s	0 Mt CO2e per person	0 Mt CO2e per person	0 Mt CO2e per person	Iraq
2000s	0 Mt CO2e per person	0 Mt CO2e per person	0 Mt CO2e per person	Iraq
2010s	0 Mt CO2e per person	0 Mt CO2e per person	0 Mt CO2e per person	Iraq
2020s	0 Mt CO2e per person	0 Mt CO2e per person	0 Mt CO2e per person	Iraq

Averages of every year both report within each decade.

Frequently asked questions

Which has higher nitrous oxide (n2o) emissions from building (energy) (mt co2e), per, Hong Kong or Iraq?: Iraq, at 0 Mt CO2e per person against 0 Mt CO2e per person in Hong Kong as of 2024.
What is the difference in nitrous oxide (n2o) emissions from building (energy) (mt co2e), per between Hong Kong and Iraq?: 0 Mt CO2e per person, with Iraq ahead.
How many years of comparable data are there for Hong Kong and Iraq?: 55 years are reported by both, from 1970 to 2024.
How do Hong Kong and Iraq rank globally for nitrous oxide (n2o) emissions from building (energy) (mt co2e), per?: Hong Kong ranks 187th and Iraq ranks 185th of 197 countries.
Where does this data come from?: Statizoid (derived), published as Nitrous oxide (N2O) emissions from Building (Energy) (Mt CO2e), per capita. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Hong Kong vs Iraq: Nitrous oxide (N2O) emissions from Building (Energy) (Mt CO2e), per. Statizoid, drawing on Statizoid (derived). Retrieved 19 September 2026, from https://environment.statizoid.com/compare/nitrous-oxide-n2o-emissions-from-building-energy-mt-co2e-per-capita/hong-kong-sar-china/iraq/

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About this data

Indicator: Nitrous oxide (N2O) emissions from Building (Energy) (Mt CO2e), per capita
Unit: Mt CO2e per person
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 244 places, 13,420 data points, 1970–2024
Last refreshed: 19 September 2026

Nitrous oxide (N2O) emissions from Building (Energy) (Mt CO2e) divided by Population, total, matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.