Hong Kong vs Sierra Leone: Carbon dioxide (CO2) emissions from Industrial Processes (Mt CO2e)

Hong Kong
1.25 % change on previous year
in 2024
Sierra Leone
1.24 % change on previous year
in 2024
Hong Kong rank
63rd
Sierra Leone rank
65th

Carbon dioxide (CO2) emissions from Industrial Processes (Mt CO2e) over time

  • Hong Kong
  • Sierra Leone
-1000100200300400197119972024

How they compare

Hong Kong currently reports 1.25 % change on previous year against 1.24 % change on previous year in Sierra Leone, a difference of 0.01 % change on previous year.

The two have swapped places 28 times across 54 shared years of data; in 1971 it was Hong Kong ahead.

Hong Kong ranks 63rd and Sierra Leone ranks 65th of 201 countries.

Across the 6 decades both report, Hong Kong averaged higher in 1 and Sierra Leone in 5.

Head to head by decade

Decade Hong Kong Sierra Leone Difference Ahead
1970s 11.79 % change on previous year 0.2222 % change on previous year 11.57 % change on previous year Hong Kong
1980s 4.45 % change on previous year 9.57 % change on previous year 5.12 % change on previous year Sierra Leone
1990s -1.87 % change on previous year 38.98 % change on previous year 40.85 % change on previous year Sierra Leone
2000s -3.15 % change on previous year 7 % change on previous year 10.15 % change on previous year Sierra Leone
2010s 4.12 % change on previous year 4.85 % change on previous year 0.7316 % change on previous year Sierra Leone
2020s -0.8413 % change on previous year 0.3388 % change on previous year 1.18 % change on previous year Sierra Leone

Averages of every year both report within each decade.

Frequently asked questions

Which has higher carbon dioxide (co2) emissions from industrial processes (mt co2e), Hong Kong or Sierra Leone?
Hong Kong, at 1.25 % change on previous year against 1.24 % change on previous year in Sierra Leone as of 2024.
What is the difference in carbon dioxide (co2) emissions from industrial processes (mt co2e) between Hong Kong and Sierra Leone?
0.01 % change on previous year, with Hong Kong ahead.
How many years of comparable data are there for Hong Kong and Sierra Leone?
54 years are reported by both, from 1971 to 2024.
How do Hong Kong and Sierra Leone rank globally for carbon dioxide (co2) emissions from industrial processes (mt co2e)?
Hong Kong ranks 63rd and Sierra Leone ranks 65th of 201 countries.
Where does this data come from?
Statizoid (derived), published as Carbon dioxide (CO2) emissions from Industrial Processes (Mt CO2e), annual growth rate. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Hong Kong vs Sierra Leone: Carbon dioxide (CO2) emissions from Industrial Processes (Mt CO2e). Statizoid, drawing on Statizoid (derived). Retrieved 21 September 2026, from https://environment.statizoid.com/compare/carbon-dioxide-co2-emissions-from-industrial-processes-mt-co2e-annual-growth-rate/hong-kong-sar-china/sierra-leone/

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About this data

Indicator
Carbon dioxide (CO2) emissions from Industrial Processes (Mt CO2e), annual growth rate
Unit
% change on previous year
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
248 places, 13,333 data points, 1971–2024
Last refreshed

The year-on-year percentage change in Carbon dioxide (CO2) emissions from Industrial Processes (Mt CO2e). Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.