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

63 years are reported by both, from 1961 to 2023.

Where does this data come from?

Statizoid (derived), published as IPPU — Emissions (CO2eq) from CH4 (AR5), per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Japan vs Oman: IPPU — Emissions (CO2eq) from CH4 (AR5), per square kilometre

Japan

0.0013 kt per square kilometre

in 2023

Oman

0.0019 kt per square kilometre

in 2023

Japan rank

12th

Oman rank

10th

IPPU — Emissions (CO2eq) from CH4 (AR5), per square kilometre over time

Japan
Oman

How they compare

Oman currently reports 0.0019 kt per square kilometre against 0.0013 kt per square kilometre in Japan, a difference of 0.0006 kt per square kilometre.

That makes Oman's figure about 1.4 times Japan's.

The two have swapped places 5 times across 63 shared years of data; in 1961 it was Japan ahead.

Japan ranks 12th and Oman ranks 10th of 119 countries.

Across the 7 decades both report, Japan averaged higher in 6 and Oman in 1.

Head to head by decade

Decade	Japan	Oman	Difference	Ahead
1960s	0.0012 kt per square kilometre	0 kt per square kilometre	0.0012 kt per square kilometre	Japan
1970s	0.0013 kt per square kilometre	0 kt per square kilometre	0.0013 kt per square kilometre	Japan
1980s	0.0008 kt per square kilometre	0 kt per square kilometre	0.0008 kt per square kilometre	Japan
1990s	0.0008 kt per square kilometre	0 kt per square kilometre	0.0008 kt per square kilometre	Japan
2000s	0.0009 kt per square kilometre	0.0001 kt per square kilometre	0.0008 kt per square kilometre	Japan
2010s	0.0011 kt per square kilometre	0.0011 kt per square kilometre	0.0001 kt per square kilometre	Japan
2020s	0.0013 kt per square kilometre	0.0018 kt per square kilometre	0.0004 kt per square kilometre	Oman

Averages of every year both report within each decade.

Frequently asked questions

Which has higher ippu — emissions (co2eq) from ch4 (ar5), per square kilometre, Japan or Oman?: Oman, at 0.0019 kt per square kilometre against 0.0013 kt per square kilometre in Japan as of 2023.
What is the difference in ippu — emissions (co2eq) from ch4 (ar5), per square kilometre between Japan and Oman?: 0.0006 kt per square kilometre, with Oman ahead.
How many years of comparable data are there for Japan and Oman?: 63 years are reported by both, from 1961 to 2023.
How do Japan and Oman rank globally for ippu — emissions (co2eq) from ch4 (ar5), per square kilometre?: Japan ranks 12th and Oman ranks 10th of 119 countries.
Where does this data come from?: Statizoid (derived), published as IPPU — Emissions (CO2eq) from CH4 (AR5), per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Japan vs Oman: IPPU — Emissions (CO2eq) from CH4 (AR5), per square kilometre. Statizoid, drawing on Statizoid (derived). Retrieved 22 September 2026, from https://climate.statizoid.com/compare/ippu-emissions-co2eq-from-ch4-ar5-per-square-kilometre/japan/oman/

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<a href="https://climate.statizoid.com/compare/ippu-emissions-co2eq-from-ch4-ar5-per-square-kilometre/japan/oman/">Japan vs Oman: IPPU — Emissions (CO2eq) from CH4 (AR5), per square kilometre</a> — Statizoid

About this data

Indicator: IPPU — Emissions (CO2eq) from CH4 (AR5), per square kilometre
Unit: kt per square kilometre
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 120 places, 6,740 data points, 1961–2023
Last refreshed: 22 September 2026

IPPU — Emissions (CO2eq) from CH4 (AR5) 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.