Annual CO2 Emissions Ranking (2023)

In 2023, annual CO2 emissions 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 across countries was 170.54 million tonnes, the median was 10.03 million tonnes, and Antarctica recorded the lowest annual CO2 emissions at 0 tonnes, according to the Global Carbon Budget.

Data is available for the period 1750 to 2023 across 215 countries.