Oman vs Tonga: Share of CO₂ emissions covered by a carbon price

Oman

0.0%

in 2025

Tonga

0.0%

in 2025

Oman rank

50th

Tonga rank

50th

Share of CO₂ emissions covered by a carbon price over time

Oman currently reports 0.0% against 0.0% in Tonga, a difference of 0.0%.

Across all 37 years both countries report, Tonga has been ahead every year.

Oman ranks 50th and Tonga ranks 50th of 200 countries.

Indicator: Share of CO₂ emissions covered by a carbon price
Unit: %
Source: Dolphin and Merkle (2024) – with minor processing by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 200 places, 7,400 data points, 1989–2025
Last refreshed: 07 August 2026

Carbon dioxide emissions are included in this figure if they are covered by a carbon tax or trading system.