Hong Kong vs Macao: Methane (CH4) emissions from Waste (Mt CO2e), per square kilometre

Hong Kong
0.0045 Mt CO2e per square kilometre
in 2023
Macao
0.0011 Mt CO2e per square kilometre
in 2023
Hong Kong rank
2nd
Macao rank
5th

Methane (CH4) emissions from Waste (Mt CO2e), per square kilometre over time

  • Hong Kong
  • Macao
0.0010.0020.0030.0040.005197019962023

How they compare

Hong Kong currently reports 0.0045 Mt CO2e per square kilometre against 0.0011 Mt CO2e per square kilometre in Macao, a difference of 0.0034 Mt CO2e per square kilometre.

That makes Hong Kong's figure about 4.3 times Macao's.

Across all 54 years both countries report, Hong Kong has been ahead every year.

Hong Kong ranks 2nd and Macao ranks 5th of 203 countries.

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

Head to head by decade

Decade Hong Kong Macao Difference Ahead
1970s 0.002 Mt CO2e per square kilometre 0.0009 Mt CO2e per square kilometre 0.001 Mt CO2e per square kilometre Hong Kong
1980s 0.0027 Mt CO2e per square kilometre 0.0011 Mt CO2e per square kilometre 0.0016 Mt CO2e per square kilometre Hong Kong
1990s 0.0034 Mt CO2e per square kilometre 0.0012 Mt CO2e per square kilometre 0.0021 Mt CO2e per square kilometre Hong Kong
2000s 0.0037 Mt CO2e per square kilometre 0.0008 Mt CO2e per square kilometre 0.0028 Mt CO2e per square kilometre Hong Kong
2010s 0.0041 Mt CO2e per square kilometre 0.001 Mt CO2e per square kilometre 0.0031 Mt CO2e per square kilometre Hong Kong
2020s 0.0044 Mt CO2e per square kilometre 0.001 Mt CO2e per square kilometre 0.0034 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 waste (mt co2e), per square kilometre, Hong Kong or Macao?
Hong Kong, at 0.0045 Mt CO2e per square kilometre against 0.0011 Mt CO2e per square kilometre in Macao as of 2023.
What is the difference in methane (ch4) emissions from waste (mt co2e), per square kilometre between Hong Kong and Macao?
0.0034 Mt CO2e per square kilometre, with Hong Kong ahead.
How many years of comparable data are there for Hong Kong and Macao?
54 years are reported by both, from 1970 to 2023.
How do Hong Kong and Macao rank globally for methane (ch4) emissions from waste (mt co2e), per square kilometre?
Hong Kong ranks 2nd and Macao ranks 5th of 203 countries.
Where does this data come from?
Statizoid (derived), published as Methane (CH4) emissions from Waste (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 Macao: Methane (CH4) emissions from Waste (Mt CO2e), per square kilometre. Statizoid, drawing on Statizoid (derived). Retrieved 22 September 2026, from https://environment.statizoid.com/compare/methane-ch4-emissions-from-waste-mt-co2e-per-square-kilometre/hong-kong-sar-china/macao-sar-china/

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About this data

Indicator
Methane (CH4) emissions from Waste (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
250 places, 12,804 data points, 1970–2023
Last refreshed

Methane (CH4) emissions from Waste (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.