Hong Kong vs Sierra Leone: Methane emissions

Hong Kong
5.15 million
in 2024
Sierra Leone
5.42 million
in 2024
Hong Kong rank
130th
Sierra Leone rank
128th

Methane emissions over time

  • Hong Kong
  • Sierra Leone
02.0M4.0M6.0M185019372024

How they compare

Sierra Leone currently reports 5.42 million against 5.15 million in Hong Kong, a difference of 270,070.

That makes Sierra Leone's figure about 1.1 times Hong Kong's.

The two have swapped places 6 times across 175 shared years of data; in 1850 it was Sierra Leone ahead.

Hong Kong ranks 130th and Sierra Leone ranks 128th of 199 countries.

Across the 18 decades both report, Hong Kong averaged higher in 4 and Sierra Leone in 14.

Head to head by decade

Decade Hong Kong Sierra Leone Difference Ahead
1850s 9,816 464,598 454,782 Sierra Leone
1860s 18,191 470,953 452,762 Sierra Leone
1870s 26,365 480,528 454,163 Sierra Leone
1880s 34,768 490,376 455,608 Sierra Leone
1890s 46,942 504,143 457,201 Sierra Leone
1900s 70,240 595,598 525,358 Sierra Leone
1910s 100,130 686,745 586,614 Sierra Leone
1920s 126,630 839,684 713,054 Sierra Leone
1930s 213,278 1.04 million 829,256 Sierra Leone
1940s 369,300 1.28 million 913,033 Sierra Leone
1950s 717,486 1.54 million 820,583 Sierra Leone
1960s 1.44 million 1.80 million 356,988 Sierra Leone
1970s 2.21 million 2.12 million 88,959 Hong Kong
1980s 2.95 million 2.29 million 653,101 Hong Kong
1990s 3.75 million 2.88 million 874,156 Hong Kong
2000s 4.25 million 3.80 million 455,571 Hong Kong
2010s 4.68 million 5.03 million 353,303 Sierra Leone
2020s 5.05 million 5.26 million 212,792 Sierra Leone

Averages of every year both report within each decade.

Frequently asked questions

Which has higher methane emissions, Hong Kong or Sierra Leone?
Sierra Leone, at 5.42 million against 5.15 million in Hong Kong as of 2024.
What is the difference in methane emissions between Hong Kong and Sierra Leone?
270,070, with Sierra Leone ahead.
How many years of comparable data are there for Hong Kong and Sierra Leone?
175 years are reported by both, from 1850 to 2024.
How do Hong Kong and Sierra Leone rank globally for methane emissions?
Hong Kong ranks 130th and Sierra Leone ranks 128th of 199 countries.
Where does this data come from?
Our World in Data, published as Methane emissions. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Individual pages

About this data

Indicator
Methane emissions
Source
Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
199 places, 34,825 data points, 1850–2024
Last refreshed