Japan vs San Marino: IPPU — Emissions (CO2eq) (AR5), per square kilometre

Japan
0.2258 kt per square kilometre
in 2023
San Marino
0.2808 kt per square kilometre
in 2023
Japan rank
16th
San Marino rank
14th

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

  • Japan
  • San Marino
0.10.20.30.4196119922023

How they compare

San Marino currently reports 0.2808 kt per square kilometre against 0.2258 kt per square kilometre in Japan, a difference of 0.055 kt per square kilometre.

That makes San Marino's figure about 1.2 times Japan's.

The two have swapped places 4 times across 63 shared years of data; in 1961 it was San Marino ahead.

Japan ranks 16th and San Marino ranks 14th of 186 countries.

Across the 7 decades both report, Japan averaged higher in 3 and San Marino in 4.

Head to head by decade

Decade Japan San Marino Difference Ahead
1960s 0.1742 kt per square kilometre 0.1884 kt per square kilometre 0.0142 kt per square kilometre San Marino
1970s 0.2673 kt per square kilometre 0.2386 kt per square kilometre 0.0287 kt per square kilometre Japan
1980s 0.285 kt per square kilometre 0.2529 kt per square kilometre 0.0321 kt per square kilometre Japan
1990s 0.3633 kt per square kilometre 0.2462 kt per square kilometre 0.1171 kt per square kilometre Japan
2000s 0.2692 kt per square kilometre 0.3293 kt per square kilometre 0.0601 kt per square kilometre San Marino
2010s 0.2342 kt per square kilometre 0.3342 kt per square kilometre 0.0999 kt per square kilometre San Marino
2020s 0.234 kt per square kilometre 0.304 kt per square kilometre 0.07 kt per square kilometre San Marino

Averages of every year both report within each decade.

Frequently asked questions

Which has higher ippu — emissions (co2eq) (ar5), per square kilometre, Japan or San Marino?
San Marino, at 0.2808 kt per square kilometre against 0.2258 kt per square kilometre in Japan as of 2023.
What is the difference in ippu — emissions (co2eq) (ar5), per square kilometre between Japan and San Marino?
0.055 kt per square kilometre, with San Marino ahead.
How many years of comparable data are there for Japan and San Marino?
63 years are reported by both, from 1961 to 2023.
How do Japan and San Marino rank globally for ippu — emissions (co2eq) (ar5), per square kilometre?
Japan ranks 16th and San Marino ranks 14th of 186 countries.
Where does this data come from?
Statizoid (derived), published as IPPU — Emissions (CO2eq) (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 San Marino: IPPU — Emissions (CO2eq) (AR5), per square kilometre. Statizoid, drawing on Statizoid (derived). Retrieved 22 September 2026, from https://climate.statizoid.com/compare/ippu-emissions-co2eq-ar5-per-square-kilometre/japan/san-marino/

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About this data

Indicator
IPPU — Emissions (CO2eq) (AR5), per square kilometre
Unit
kt per square kilometre
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
187 places, 10,734 data points, 1961–2023
Last refreshed

IPPU — Emissions (CO2eq) (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.