How many years of comparable data are there for Japan and Sri Lanka?

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

Where does this data come from?

Statizoid (derived), published as Methane (CH4) emissions from Industrial Combustion (Energy) (Mt CO2e), per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Japan vs Sri Lanka: Methane (CH4) emissions from Industrial Combustion (Energy) (Mt)

Japan

0 Mt CO2e per square kilometre

in 2023

Sri Lanka

0 Mt CO2e per square kilometre

in 2023

Japan rank

12th

Sri Lanka rank

10th

Methane (CH4) emissions from Industrial Combustion (Energy) (Mt) over time

Japan
Sri Lanka

How they compare

Sri Lanka currently reports 0 Mt CO2e per square kilometre against 0 Mt CO2e per square kilometre in Japan, a difference of 0 Mt CO2e per square kilometre.

That makes Sri Lanka's figure about 1.4 times Japan's.

The two have swapped places 1 time across 54 shared years of data; in 1970 it was Japan ahead.

Japan ranks 12th and Sri Lanka ranks 10th of 193 countries.

Across the 6 decades both report, Japan averaged higher in 4 and Sri Lanka in 2.

Head to head by decade

Decade	Japan	Sri Lanka	Difference	Ahead
1970s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Japan
1980s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Japan
1990s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Japan
2000s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Japan
2010s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Sri Lanka
2020s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Sri Lanka

Averages of every year both report within each decade.

Frequently asked questions

Which has higher methane (ch4) emissions from industrial combustion (energy) (mt), Japan or Sri Lanka?: Sri Lanka, at 0 Mt CO2e per square kilometre against 0 Mt CO2e per square kilometre in Japan as of 2023.
What is the difference in methane (ch4) emissions from industrial combustion (energy) (mt) between Japan and Sri Lanka?: 0 Mt CO2e per square kilometre, with Sri Lanka ahead.
How many years of comparable data are there for Japan and Sri Lanka?: 54 years are reported by both, from 1970 to 2023.
How do Japan and Sri Lanka rank globally for methane (ch4) emissions from industrial combustion (energy) (mt)?: Japan ranks 12th and Sri Lanka ranks 10th of 193 countries.
Where does this data come from?: Statizoid (derived), published as Methane (CH4) emissions from Industrial Combustion (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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Japan vs Sri Lanka: Methane (CH4) emissions from Industrial Combustion (Energy) (Mt). Statizoid, drawing on Statizoid (derived). Retrieved 22 September 2026, from https://environment.statizoid.com/compare/methane-ch4-emissions-from-industrial-combustion-energy-mt-co2e-per-square-kilometre/japan/sri-lanka/

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<a href="https://environment.statizoid.com/compare/methane-ch4-emissions-from-industrial-combustion-energy-mt-co2e-per-square-kilometre/japan/sri-lanka/">Japan vs Sri Lanka: Methane (CH4) emissions from Industrial Combustion (Energy) (Mt)</a> — Statizoid

About this data

Indicator: Methane (CH4) emissions from Industrial Combustion (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: 240 places, 12,327 data points, 1970–2023
Last refreshed: 22 September 2026

Methane (CH4) emissions from Industrial Combustion (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.