What is the difference in ippu — emissions (co2), per square kilometre between Sao Tome and Principe and Tonga?

0.0001 kt per square kilometre, with Sao Tome and Principe ahead.

How many years of comparable data are there for Sao Tome and Principe and Tonga?

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

Where does this data come from?

Statizoid (derived), published as IPPU — Emissions (CO2), per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Sao Tome and Principe vs Tonga: IPPU — Emissions (CO2), per square kilometre

Sao Tome and Principe

0.0008 kt per square kilometre

in 2023

Tonga

0.0007 kt per square kilometre

in 2023

Sao Tome and Principe rank

151st

Tonga rank

153rd

IPPU — Emissions (CO2), per square kilometre over time

Sao Tome and Principe
Tonga

How they compare

Sao Tome and Principe currently reports 0.0008 kt per square kilometre against 0.0007 kt per square kilometre in Tonga, a difference of 0.0001 kt per square kilometre.

That makes Sao Tome and Principe's figure about 1.2 times Tonga's.

The two have swapped places 9 times across 63 shared years of data; in 1961 it was Tonga ahead.

Sao Tome and Principe ranks 151st and Tonga ranks 153rd of 186 countries.

Across the 7 decades both report, Sao Tome and Principe averaged higher in 1 and Tonga in 6.

Head to head by decade

Decade	Sao Tome and Principe	Tonga	Difference	Ahead
1960s	0.0002 kt per square kilometre	0.0003 kt per square kilometre	0 kt per square kilometre	Tonga
1970s	0.0003 kt per square kilometre	0.0004 kt per square kilometre	0.0001 kt per square kilometre	Tonga
1980s	0.0004 kt per square kilometre	0.0004 kt per square kilometre	0.0001 kt per square kilometre	Tonga
1990s	0.0004 kt per square kilometre	0.0006 kt per square kilometre	0.0002 kt per square kilometre	Tonga
2000s	0.0005 kt per square kilometre	0.0006 kt per square kilometre	0.0001 kt per square kilometre	Tonga
2010s	0.0008 kt per square kilometre	0.001 kt per square kilometre	0.0002 kt per square kilometre	Tonga
2020s	0.0008 kt per square kilometre	0.0007 kt per square kilometre	0 kt per square kilometre	Sao Tome and Principe

Averages of every year both report within each decade.

Frequently asked questions

Which has higher ippu — emissions (co2), per square kilometre, Sao Tome and Principe or Tonga?: Sao Tome and Principe, at 0.0008 kt per square kilometre against 0.0007 kt per square kilometre in Tonga as of 2023.
What is the difference in ippu — emissions (co2), per square kilometre between Sao Tome and Principe and Tonga?: 0.0001 kt per square kilometre, with Sao Tome and Principe ahead.
How many years of comparable data are there for Sao Tome and Principe and Tonga?: 63 years are reported by both, from 1961 to 2023.
How do Sao Tome and Principe and Tonga rank globally for ippu — emissions (co2), per square kilometre?: Sao Tome and Principe ranks 151st and Tonga ranks 153rd of 186 countries.
Where does this data come from?: Statizoid (derived), published as IPPU — Emissions (CO2), per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Sao Tome and Principe vs Tonga: IPPU — Emissions (CO2), per square kilometre. Statizoid, drawing on Statizoid (derived). Retrieved 23 September 2026, from https://climate.statizoid.com/compare/ippu-emissions-co2-per-square-kilometre/sao-tome-and-principe/tonga/

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<a href="https://climate.statizoid.com/compare/ippu-emissions-co2-per-square-kilometre/sao-tome-and-principe/tonga/">Sao Tome and Principe vs Tonga: IPPU — Emissions (CO2), per square kilometre</a> — Statizoid

About this data

Indicator: IPPU — Emissions (CO2), 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: 23 September 2026

IPPU — Emissions (CO2) 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.