Hong Kong vs Singapore: Cumulative CO₂ emissions, per square kilometre
Hong Kong
1.64 million tonnes per square kilometre
in 2023
Singapore
3.06 million tonnes per square kilometre
in 2023
Hong Kong rank
4th
Singapore rank
1st
Cumulative CO₂ emissions, per square kilometre over time
- Hong Kong
- Singapore
How they compare
Singapore currently reports 3.06 million tonnes per square kilometre against 1.64 million tonnes per square kilometre in Hong Kong, a difference of 1.42 million tonnes per square kilometre.
That makes Singapore's figure about 1.9 times Hong Kong's.
Across all 63 years both countries report, Singapore has been ahead every year.
Hong Kong ranks 4th and Singapore ranks 1st of 204 countries.
Singapore has averaged higher in every one of the 7 decades both report.
Head to head by decade
| Decade | Hong Kong | Singapore | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 43,670 tonnes per square kilometre | 66,422 tonnes per square kilometre | 22,752 tonnes per square kilometre | Singapore |
| 1970s | 123,293 tonnes per square kilometre | 267,520 tonnes per square kilometre | 144,227 tonnes per square kilometre | Singapore |
| 1980s | 302,658 tonnes per square kilometre | 710,554 tonnes per square kilometre | 407,896 tonnes per square kilometre | Singapore |
| 1990s | 575,087 tonnes per square kilometre | 1.33 million tonnes per square kilometre | 759,537 tonnes per square kilometre | Singapore |
| 2000s | 921,780 tonnes per square kilometre | 1.94 million tonnes per square kilometre | 1.02 million tonnes per square kilometre | Singapore |
| 2010s | 1.33 million tonnes per square kilometre | 2.51 million tonnes per square kilometre | 1.18 million tonnes per square kilometre | Singapore |
| 2020s | 1.59 million tonnes per square kilometre | 2.95 million tonnes per square kilometre | 1.36 million tonnes per square kilometre | Singapore |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher cumulative co₂ emissions, per square kilometre, Hong Kong or Singapore?
- Singapore, at 3.06 million tonnes per square kilometre against 1.64 million tonnes per square kilometre in Hong Kong as of 2023.
- What is the difference in cumulative co₂ emissions, per square kilometre between Hong Kong and Singapore?
- 1.42 million tonnes per square kilometre, with Singapore ahead.
- How many years of comparable data are there for Hong Kong and Singapore?
- 63 years are reported by both, from 1961 to 2023.
- How do Hong Kong and Singapore rank globally for cumulative co₂ emissions, per square kilometre?
- Hong Kong ranks 4th and Singapore ranks 1st of 204 countries.
- Where does this data come from?
- Statizoid (derived), published as Cumulative CO₂ emissions, per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Cumulative CO₂ emissions 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.