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

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 Waste (Mt CO2e), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Hong Kong vs Qatar: Nitrous oxide (N2O) emissions from Waste (Mt CO2e), per unit of GDP

Hong Kong

0 Mt CO2e per US$ of GDP

in 2024

Qatar

0 Mt CO2e per US$ of GDP

in 2024

Hong Kong rank

178th

Qatar rank

181st

Nitrous oxide (N2O) emissions from Waste (Mt CO2e), per unit of GDP over time

Hong Kong
Qatar

How they compare

Hong Kong currently reports 0 Mt CO2e per US$ of GDP against 0 Mt CO2e per US$ of GDP in Qatar, a difference of 0 Mt CO2e per US$ of GDP.

That makes Hong Kong's figure about 1.2 times Qatar's.

The two have swapped places 4 times across 55 shared years of data; in 1970 it was Hong Kong ahead.

Hong Kong ranks 178th and Qatar ranks 181st of 200 countries.

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

Head to head by decade

Decade	Hong Kong	Qatar	Difference	Ahead
1970s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Hong Kong
1980s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Hong Kong
1990s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Hong Kong
2000s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Hong Kong
2010s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Hong Kong
2020s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Hong Kong

Averages of every year both report within each decade.

Frequently asked questions

Which has higher nitrous oxide (n2o) emissions from waste (mt co2e), per unit of gdp, Hong Kong or Qatar?: Hong Kong, at 0 Mt CO2e per US$ of GDP against 0 Mt CO2e per US$ of GDP in Qatar as of 2024.
What is the difference in nitrous oxide (n2o) emissions from waste (mt co2e), per unit of gdp between Hong Kong and Qatar?: 0 Mt CO2e per US$ of GDP, with Hong Kong ahead.
How many years of comparable data are there for Hong Kong and Qatar?: 55 years are reported by both, from 1970 to 2024.
How do Hong Kong and Qatar rank globally for nitrous oxide (n2o) emissions from waste (mt co2e), per unit of gdp?: Hong Kong ranks 178th and Qatar ranks 181st of 200 countries.
Where does this data come from?: Statizoid (derived), published as Nitrous oxide (N2O) emissions from Waste (Mt CO2e), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Hong Kong vs Qatar: Nitrous oxide (N2O) emissions from Waste (Mt CO2e), per unit of GDP. Statizoid, drawing on Statizoid (derived). Retrieved 18 September 2026, from https://environment.statizoid.com/compare/nitrous-oxide-n2o-emissions-from-waste-mt-co2e-per-unit-of-gdp/hong-kong-sar-china/qatar/

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<a href="https://environment.statizoid.com/compare/nitrous-oxide-n2o-emissions-from-waste-mt-co2e-per-unit-of-gdp/hong-kong-sar-china/qatar/">Hong Kong vs Qatar: Nitrous oxide (N2O) emissions from Waste (Mt CO2e), per unit of GDP</a> — Statizoid

About this data

Indicator: Nitrous oxide (N2O) emissions from Waste (Mt CO2e), per unit of GDP
Unit: Mt CO2e per US$ of GDP
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 247 places, 12,498 data points, 1970–2024
Last refreshed: 18 September 2026

Nitrous oxide (N2O) emissions from Waste (Mt CO2e) divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.