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

24 years are reported by both, from 2000 to 2023.

Where does this data come from?

Statizoid (derived), published as Methane (CH4) emissions from Building (Energy) (Mt CO2e), per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Hong Kong vs Luxembourg: Methane (CH4) emissions from Building (Energy) (Mt CO2e), per square

Hong Kong

0 Mt CO2e per square kilometre

in 2023

Luxembourg

0 Mt CO2e per square kilometre

in 2023

Hong Kong rank

52nd

Luxembourg rank

53rd

Methane (CH4) emissions from Building (Energy) (Mt CO2e), per square over time

Hong Kong
Luxembourg

How they compare

Hong Kong currently reports 0 Mt CO2e per square kilometre against 0 Mt CO2e per square kilometre in Luxembourg, a difference of 0 Mt CO2e per square kilometre.

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

The two have swapped places 2 times across 24 shared years of data; in 2000 it was Hong Kong ahead.

Hong Kong ranks 52nd and Luxembourg ranks 53rd of 197 countries.

Hong Kong has averaged higher in every one of the 3 decades both report.

Head to head by decade

Decade	Hong Kong	Luxembourg	Difference	Ahead
2000s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Hong Kong
2010s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Hong Kong
2020s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Hong Kong

Averages of every year both report within each decade.

Frequently asked questions

Which has higher methane (ch4) emissions from building (energy) (mt co2e), per square, Hong Kong or Luxembourg?: Hong Kong, at 0 Mt CO2e per square kilometre against 0 Mt CO2e per square kilometre in Luxembourg as of 2023.
What is the difference in methane (ch4) emissions from building (energy) (mt co2e), per square between Hong Kong and Luxembourg?: 0 Mt CO2e per square kilometre, with Hong Kong ahead.
How many years of comparable data are there for Hong Kong and Luxembourg?: 24 years are reported by both, from 2000 to 2023.
How do Hong Kong and Luxembourg rank globally for methane (ch4) emissions from building (energy) (mt co2e), per square?: Hong Kong ranks 52nd and Luxembourg ranks 53rd of 197 countries.
Where does this data come from?: Statizoid (derived), published as Methane (CH4) emissions from Building (Energy) (Mt CO2e), per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Hong Kong vs Luxembourg: Methane (CH4) emissions from Building (Energy) (Mt CO2e), per square. Statizoid, drawing on Statizoid (derived). Retrieved 22 September 2026, from https://environment.statizoid.com/compare/methane-ch4-emissions-from-building-energy-mt-co2e-per-square-kilometre/hong-kong-sar-china/luxembourg/

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<a href="https://environment.statizoid.com/compare/methane-ch4-emissions-from-building-energy-mt-co2e-per-square-kilometre/hong-kong-sar-china/luxembourg/">Hong Kong vs Luxembourg: Methane (CH4) emissions from Building (Energy) (Mt CO2e), per square</a> — Statizoid

About this data

Indicator: Methane (CH4) emissions from Building (Energy) (Mt CO2e), per square kilometre
Unit: Mt CO2e per square kilometre
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 244 places, 12,543 data points, 1970–2023
Last refreshed: 22 September 2026

Methane (CH4) emissions from Building (Energy) (Mt CO2e) divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.