Mauritania vs Tonga: Share of CO₂ emissions covered by a carbon price
Mauritania
0.0%
in 2025
Tonga
0.0%
in 2025
Mauritania rank
50th
Tonga rank
50th
Share of CO₂ emissions covered by a carbon price over time
- Mauritania
- Tonga
How they compare
Mauritania 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.
Mauritania ranks 50th and Tonga ranks 50th of 200 countries.
Head to head by decade
| Decade | Mauritania | Tonga | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 0.0% | 0.0% | 0.0% | — |
| 1990s | 0.0% | 0.0% | 0.0% | — |
| 2000s | 0.0% | 0.0% | 0.0% | — |
| 2010s | 0.0% | 0.0% | 0.0% | — |
| 2020s | 0.0% | 0.0% | 0.0% | — |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher share of co₂ emissions covered by a carbon price, Mauritania or Tonga?
- Mauritania, at 0.0% against 0.0% in Tonga as of 2025.
- What is the difference in share of co₂ emissions covered by a carbon price between Mauritania and Tonga?
- 0.0%, with Mauritania ahead.
- How many years of comparable data are there for Mauritania and Tonga?
- 37 years are reported by both, from 1989 to 2025.
- How do Mauritania and Tonga rank globally for share of co₂ emissions covered by a carbon price?
- Mauritania ranks 50th and Tonga ranks 50th of 200 countries.
- Where does this data come from?
- Dolphin and Merkle (2024) – with minor processing by Our World in Data, published as Share of CO₂ emissions covered by a carbon price. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Carbon dioxide emissions are included in this figure if they are covered by a carbon tax or trading system.