How many years of comparable data are there for Bulgaria and Tonga?

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

Where does this data come from?

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

Bulgaria vs Tonga: Waste — Emissions (CO2eq) (AR5), per square kilometre

Bulgaria

0.0495 kt per square kilometre

in 2023

Tonga

0.0517 kt per square kilometre

in 2023

Bulgaria rank

39th

Tonga rank

36th

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

Bulgaria
Tonga

How they compare

Tonga currently reports 0.0517 kt per square kilometre against 0.0495 kt per square kilometre in Bulgaria, a difference of 0.0022 kt per square kilometre.

The two have swapped places 3 times across 63 shared years of data; in 1961 it was Bulgaria ahead.

Bulgaria ranks 39th and Tonga ranks 36th of 186 countries.

Bulgaria has averaged higher in every one of the 7 decades both report.

Head to head by decade

Decade	Bulgaria	Tonga	Difference	Ahead
1960s	0.0529 kt per square kilometre	0.0224 kt per square kilometre	0.0305 kt per square kilometre	Bulgaria
1970s	0.0641 kt per square kilometre	0.0304 kt per square kilometre	0.0337 kt per square kilometre	Bulgaria
1980s	0.0695 kt per square kilometre	0.038 kt per square kilometre	0.0315 kt per square kilometre	Bulgaria
1990s	0.0652 kt per square kilometre	0.0415 kt per square kilometre	0.0237 kt per square kilometre	Bulgaria
2000s	0.0596 kt per square kilometre	0.0448 kt per square kilometre	0.0148 kt per square kilometre	Bulgaria
2010s	0.0543 kt per square kilometre	0.0481 kt per square kilometre	0.0062 kt per square kilometre	Bulgaria
2020s	0.0519 kt per square kilometre	0.0512 kt per square kilometre	0.0008 kt per square kilometre	Bulgaria

Averages of every year both report within each decade.

Frequently asked questions

Which has higher waste — emissions (co2eq) (ar5), per square kilometre, Bulgaria or Tonga?: Tonga, at 0.0517 kt per square kilometre against 0.0495 kt per square kilometre in Bulgaria as of 2023.
What is the difference in waste — emissions (co2eq) (ar5), per square kilometre between Bulgaria and Tonga?: 0.0022 kt per square kilometre, with Tonga ahead.
How many years of comparable data are there for Bulgaria and Tonga?: 63 years are reported by both, from 1961 to 2023.
How do Bulgaria and Tonga rank globally for waste — emissions (co2eq) (ar5), per square kilometre?: Bulgaria ranks 39th and Tonga ranks 36th of 186 countries.
Where does this data come from?: Statizoid (derived), published as Waste — 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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Bulgaria vs Tonga: Waste — Emissions (CO2eq) (AR5), per square kilometre. Statizoid, drawing on Statizoid (derived). Retrieved 21 September 2026, from https://climate.statizoid.com/compare/waste-emissions-co2eq-ar5-per-square-kilometre/bulgaria/tonga/

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<a href="https://climate.statizoid.com/compare/waste-emissions-co2eq-ar5-per-square-kilometre/bulgaria/tonga/">Bulgaria vs Tonga: Waste — Emissions (CO2eq) (AR5), per square kilometre</a> — Statizoid

About this data

Indicator: Waste — 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: 21 September 2026

Waste — 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.