Largest producer of carbon dioxide emissions (country)

According to a report published by EDGAR (Emissions Database for Global Atmospheric Research) on 9 Sep 2020, the country with the highest fossil-fuel carbon emissions is China, which produced 11,535.2 megatons of CO2 in 2019. That's more than double the levels produced by the next biggest polluter, the United States.

EDGAR is an independent global database that tracks anthropogenic emissions of greenhouse gases and air pollution. It is a joint project of the European Commission Joint Research Centre and the Netherlands Environmental Assessment Agency. The data tracks carbon emissions resulting from the combustion of fossil fuels and some other industrial processes, most notably the production of cement. It does not attempt to quantify the much more complex carbon impact of shifting patterns of land use and deforestation.