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CO2 emissions (million metric tonnes carbon dioxide) (2023)

212/237 countries
World Total37.1billion metric tonnes CO2Year-over-year+1.04%5-year change+1.94%
1980
2023
2023

Rankings at a glance

Top 10 · CO2 emissions (million metric tonnes carbon dioxide) (2023)

With 12.2 billion metric tonnes CO2 in 2023, China leads the world in CO2 emissions (million metric tonnes carbon dioxide), followed by the United States (4.8 billion metric tonnes CO2) and India (2.8 billion metric tonnes CO2). The top 5 is rounded off by Russia (1.8 billion metric tonnes CO2) and Japan (960.2 million metric tonnes CO2). Further down, Indonesia (829.7 million metric tonnes CO2) and Iran (823.4 million metric tonnes CO2) hold the next two spots. Saudi Arabia (656.5 million metric tonnes CO2), South Korea (644.2 million metric tonnes CO2), and Germany (600.2 million metric tonnes CO2) round out the top ten. Across the top ten, China is 20× as high as Germany (600.2 million metric tonnes CO2). Seven of the top ten are in Asia, with three from Eastern Asia. Among these countries, Germany saw the largest year-over-year change at -11.6%.

Rank changes

How CO2 emissions (million metric tonnes carbon dioxide) changed between two years

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Historical trends

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Frequently asked questions

Which country has the highest co2 emissions?
China has the highest co2 emissions at 12.2 billion metric tonnes CO2 as of 2023, according to U.S. Energy Information Administration (EIA).
Which country has the lowest co2 emissions?
Niue has the lowest co2 emissions at 9.0 thousand metric tonnes CO2 as of 2023, according to U.S. Energy Information Administration (EIA).
What is the total co2 emissions worldwide?
The combined co2 emissions across 212 countries total 37.1 billion metric tonnes CO2 as of 2023, according to U.S. Energy Information Administration (EIA).

Source: U.S. Energy Information Administration (EIA) · Updated