Hong Kong vs Macao: Carbon dioxide (CO2) emissions from Transport (Energy) (Mt CO2e), per

Hong Kong
0.0071 Mt CO2e per square kilometre
in 2023
Macao
0.0232 Mt CO2e per square kilometre
in 2023
Hong Kong rank
4th
Macao rank
2nd

Carbon dioxide (CO2) emissions from Transport (Energy) (Mt CO2e), per over time

  • Hong Kong
  • Macao
00.010.020.030.04197019962023

How they compare

Macao currently reports 0.0232 Mt CO2e per square kilometre against 0.0071 Mt CO2e per square kilometre in Hong Kong, a difference of 0.0161 Mt CO2e per square kilometre.

That makes Macao's figure about 3.3 times Hong Kong's.

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

Hong Kong ranks 4th and Macao ranks 2nd of 194 countries.

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

Head to head by decade

Decade Hong Kong Macao Difference Ahead
1970s 0.0016 Mt CO2e per square kilometre 0.0062 Mt CO2e per square kilometre 0.0045 Mt CO2e per square kilometre Macao
1980s 0.0033 Mt CO2e per square kilometre 0.0116 Mt CO2e per square kilometre 0.0083 Mt CO2e per square kilometre Macao
1990s 0.0078 Mt CO2e per square kilometre 0.0308 Mt CO2e per square kilometre 0.0229 Mt CO2e per square kilometre Macao
2000s 0.0069 Mt CO2e per square kilometre 0.0266 Mt CO2e per square kilometre 0.0198 Mt CO2e per square kilometre Macao
2010s 0.0068 Mt CO2e per square kilometre 0.0301 Mt CO2e per square kilometre 0.0233 Mt CO2e per square kilometre Macao
2020s 0.0072 Mt CO2e per square kilometre 0.0241 Mt CO2e per square kilometre 0.0169 Mt CO2e per square kilometre Macao

Averages of every year both report within each decade.

Frequently asked questions

Which has higher carbon dioxide (co2) emissions from transport (energy) (mt co2e), per, Hong Kong or Macao?
Macao, at 0.0232 Mt CO2e per square kilometre against 0.0071 Mt CO2e per square kilometre in Hong Kong as of 2023.
What is the difference in carbon dioxide (co2) emissions from transport (energy) (mt co2e), per between Hong Kong and Macao?
0.0161 Mt CO2e per square kilometre, with Macao 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 carbon dioxide (co2) emissions from transport (energy) (mt co2e), per?
Hong Kong ranks 4th and Macao ranks 2nd of 194 countries.
Where does this data come from?
Statizoid (derived), published as Carbon dioxide (CO2) emissions from Transport (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 Macao: Carbon dioxide (CO2) emissions from Transport (Energy) (Mt CO2e), per. Statizoid, drawing on Statizoid (derived). Retrieved 23 September 2026, from https://environment.statizoid.com/compare/carbon-dioxide-co2-emissions-from-transport-energy-mt-co2e-per-square-kilometre/hong-kong-sar-china/macao-sar-china/

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About this data

Indicator
Carbon dioxide (CO2) emissions from Transport (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
241 places, 12,381 data points, 1970–2023
Last refreshed

Carbon dioxide (CO2) emissions from Transport (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.