How many years of comparable data are there for Hong Kong and South Asia (IDA & IBRD)?

54 years are reported by both, from 1970 to 2023.

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.

Hong Kong vs South Asia (IDA & IBRD): Carbon dioxide (CO2) emissions from Transport (Energy) (Mt CO2e), per

Hong Kong

0.0071 Mt CO2e per square kilometre

in 2023

South Asia (IDA & IBRD)

0.0001 Mt CO2e per square kilometre

in 2023

Hong Kong rank

4th

South Asia (IDA & IBRD) rank

4th

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

Hong Kong
South Asia (IDA & IBRD)

How they compare

Hong Kong currently reports 0.0071 Mt CO2e per square kilometre against 0.0001 Mt CO2e per square kilometre in South Asia (IDA & IBRD), a difference of 0.007 Mt CO2e per square kilometre.

That makes Hong Kong's figure about 65.6 times South Asia (IDA & IBRD)'s.

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

Hong Kong ranks 4th and South Asia (IDA & IBRD) ranks 4th of 194 countries.

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

Head to head by decade

Decade	Hong Kong	South Asia (IDA & IBRD)	Difference	Ahead
1970s	0.0016 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0.0016 Mt CO2e per square kilometre	Hong Kong
1980s	0.0033 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0.0033 Mt CO2e per square kilometre	Hong Kong
1990s	0.0078 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0.0078 Mt CO2e per square kilometre	Hong Kong
2000s	0.0069 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0.0068 Mt CO2e per square kilometre	Hong Kong
2010s	0.0068 Mt CO2e per square kilometre	0.0001 Mt CO2e per square kilometre	0.0068 Mt CO2e per square kilometre	Hong Kong
2020s	0.0072 Mt CO2e per square kilometre	0.0001 Mt CO2e per square kilometre	0.0071 Mt CO2e per square kilometre	Hong Kong

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 South Asia (IDA & IBRD)?: Hong Kong, at 0.0071 Mt CO2e per square kilometre against 0.0001 Mt CO2e per square kilometre in South Asia (IDA & IBRD) as of 2023.
What is the difference in carbon dioxide (co2) emissions from transport (energy) (mt co2e), per between Hong Kong and South Asia (IDA & IBRD)?: 0.007 Mt CO2e per square kilometre, with Hong Kong ahead.
How many years of comparable data are there for Hong Kong and South Asia (IDA & IBRD)?: 54 years are reported by both, from 1970 to 2023.
How do Hong Kong and South Asia (IDA & IBRD) rank globally for carbon dioxide (co2) emissions from transport (energy) (mt co2e), per?: Hong Kong ranks 4th and South Asia (IDA & IBRD) ranks 4th 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 South Asia (IDA & IBRD): 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/south-asia-ida-and-ibrd/

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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: 20 September 2026

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.