The total CO2 (carbon dioxide) emissions per country, divided by each country's respective GDP (gross domestic product). Units are tonnes of CO2 per thousand US dollars of GDP.

Includes all fossil CO2 sources, such as fossil fuel combustion, non-metallic mineral processes (e.g., cement production), metal (ferrous and non-ferrous) production processes, urea production, agricultural liming, and solvents use. Large-scale biomass burning with Savannah burning, forest fires, and sources and sinks from land-use, land-use change, and forestry (LULUCF) are excluded.