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

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.

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

Hong Kong

0 Mt CO2e per US$ of GDP

in 2024

Malta

0 Mt CO2e per US$ of GDP

in 2024

Hong Kong rank

190th

Malta rank

191st

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

Hong Kong
Malta

How they compare

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

That makes Hong Kong's figure about 1.1 times Malta's.

The two have swapped places 5 times across 55 shared years of data; in 1970 it was Malta ahead.

Hong Kong ranks 190th and Malta ranks 191st of 200 countries.

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

Head to head by decade

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

Averages of every year both report within each decade.

Frequently asked questions

Which has higher nitrous oxide (n2o) emissions from industrial processes (mt co2e), Hong Kong or Malta?: Hong Kong, at 0 Mt CO2e per US$ of GDP against 0 Mt CO2e per US$ of GDP in Malta as of 2024.
What is the difference in nitrous oxide (n2o) emissions from industrial processes (mt co2e) between Hong Kong and Malta?: 0 Mt CO2e per US$ of GDP, with Hong Kong ahead.
How many years of comparable data are there for Hong Kong and Malta?: 55 years are reported by both, from 1970 to 2024.
How do Hong Kong and Malta rank globally for nitrous oxide (n2o) emissions from industrial processes (mt co2e)?: Hong Kong ranks 190th and Malta ranks 191st 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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Hong Kong vs Malta: 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/hong-kong-sar-china/malta/

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<a href="https://environment.statizoid.com/compare/nitrous-oxide-n2o-emissions-from-industrial-processes-mt-co2e-per-unit-of-gdp/hong-kong-sar-china/malta/">Hong Kong vs Malta: 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.