CO₂ Emissions by Country (2026)

The three largest emitters countries are China (13,125), United States (4,632.2), India (3,153.8); the three smallest emitters are Tuvalu (0), Nauru (0), Northern Mariana Islands (0).

Across all 203 countries the median is 12.29 Mt CO₂ per year and the simple (unweighted) average is 187.1; the spread from 0 to 13,125 shows how differently countries fare on this measure.

Over roughly the last decade the biggest increases were in Laos (+494%), Turks and Caicos Islands (+201.4%), Comoros (+188.9%), while the largest decreases were in Yemen (-62.7%), Ukraine (-56%), Lebanon (-55.9%).

By continent, the leaders are China in Asia (13,125), Russia in Europe (2,009.2), South Africa in Africa (440.2), United States in North America (4,632.2), Brazil in South America (491.5), Australia in Oceania (383.4).

Carbon dioxide emissions from the burning of fossil fuels, cement production and other industrial processes, in megatonnes (million tonnes) of CO₂, excluding land use, land-use change and forestry. The World Bank series follows the EDGAR / IPCC AR5 accounting.

Source: World Bank Open Data (indicator EN.GHG.CO2.MT.CE.AR5). Countries without a published value are not ranked. Each country's own page shows the full historical series and its rank on this and every other indicator.