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

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

Denmark vs Hong Kong: Nitrous oxide (N2O) emissions from Industrial Processes (Mt CO2e)

Denmark

0 Mt CO2e per US$ of GDP

in 2024

Hong Kong

0 Mt CO2e per US$ of GDP

in 2024

Denmark rank

189th

Hong Kong rank

190th

Nitrous oxide (N2O) emissions from Industrial Processes (Mt CO2e) over time

Denmark
Hong Kong

How they compare

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

The two have swapped places 2 times across 55 shared years of data; in 1970 it was Denmark ahead.

Denmark ranks 189th and Hong Kong ranks 190th of 200 countries.

Across the 6 decades both report, Denmark averaged higher in 5 and Hong Kong in 1.

Head to head by decade

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

Averages of every year both report within each decade.

Frequently asked questions

Which has higher nitrous oxide (n2o) emissions from industrial processes (mt co2e), Denmark or Hong Kong?: Denmark, at 0 Mt CO2e per US$ of GDP against 0 Mt CO2e per US$ of GDP in Hong Kong as of 2024.
What is the difference in nitrous oxide (n2o) emissions from industrial processes (mt co2e) between Denmark and Hong Kong?: 0 Mt CO2e per US$ of GDP, with Denmark ahead.
How many years of comparable data are there for Denmark and Hong Kong?: 55 years are reported by both, from 1970 to 2024.
How do Denmark and Hong Kong rank globally for nitrous oxide (n2o) emissions from industrial processes (mt co2e)?: Denmark ranks 189th and Hong Kong ranks 190th of 200 countries.
Where does this data come from?: Statizoid (derived), published as Nitrous oxide (N2O) emissions from Industrial Processes (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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Denmark vs Hong Kong: Nitrous oxide (N2O) emissions from Industrial Processes (Mt CO2e). Statizoid, drawing on Statizoid (derived). Retrieved 19 September 2026, from https://environment.statizoid.com/compare/nitrous-oxide-n2o-emissions-from-industrial-processes-mt-co2e-per-unit-of-gdp/denmark/hong-kong-sar-china/

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<a href="https://environment.statizoid.com/compare/nitrous-oxide-n2o-emissions-from-industrial-processes-mt-co2e-per-unit-of-gdp/denmark/hong-kong-sar-china/">Denmark vs Hong Kong: Nitrous oxide (N2O) emissions from Industrial Processes (Mt CO2e)</a> — Statizoid

About this data

Indicator: Nitrous oxide (N2O) emissions from Industrial Processes (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: 19 September 2026

Nitrous oxide (N2O) emissions from Industrial Processes (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.