Major Countries Annual CO2 Emissions Ranking (2023)
In 2023, annual CO2 emissions among major countries was highest in China at 11.90 billion tonnes, followed by the United States at 4.91 billion tonnes and India at 3.06 billion tonnes. The average annual CO2 emissions across major countries was 1.45 billion tonnes, the median was 517.88 million tonnes, and Switzerland recorded the lowest annual CO2 emissions at 32.74 million tonnes, according to the Global Carbon Budget.
Data is available for the period 1750 to 2023 across 20 major countries.
Frequency : Yearly
| Rank | Country | Current Value ↓ | Previous Value | Year |
|---|---|---|---|---|
| 1 | 11.9B tonnes | 11.35B tonnes | 2023 | |
| 2 | 4.91B tonnes | 5.08B tonnes | 2023 | |
| 3 | 3.06B tonnes | 2.83B tonnes | 2023 | |
| 4 | 1.82B tonnes | 1.8B tonnes | 2023 | |
| 5 | 988.78M tonnes | 1.03B tonnes | 2023 | |
| 6 | 736.21M tonnes | 723.33M tonnes | 2023 | |
| 7 | 733.22M tonnes | 737.07M tonnes | 2023 | |
| 8 | 596.15M tonnes | 671.47M tonnes | 2023 | |
| 9 | 577.42M tonnes | 602.09M tonnes | 2023 | |
| 10 | 549.3M tonnes | 550.61M tonnes | 2023 | |
| 11 | 486.47M tonnes | 483.84M tonnes | 2023 | |
| 12 | 482.62M tonnes | 465.34M tonnes | 2023 | |
| 13 | 432.08M tonnes | 437.31M tonnes | 2023 | |
| 14 | 382.97M tonnes | 384.36M tonnes | 2023 | |
| 15 | 313.46M tonnes | 340.67M tonnes | 2023 | |
| 16 | 305.15M tonnes | 313.83M tonnes | 2023 | |
| 17 | 272.48M tonnes | 293.5M tonnes | 2023 | |
| 18 | 221.62M tonnes | 234.66M tonnes | 2023 | |
| 19 | 118.67M tonnes | 127.24M tonnes | 2023 |
Major Countries Annual CO2 Emissions Ranking (2023) : Definition
Annual CO2 Emissions is defined as total CO2 emissions from energy and industrial processes for the reporting year, reported in metric tonnes and excluding emissions or removals from land-use change and forestry.