CO2 emissions, in United States in 2021, have grown 287.973 megatons, 6.45% compared to 2020.
CO2 emissions in 2021 were 4,752.079 megatons, making United States is the second country for CO2 emissions in 2021 in the ranking of countries for CO2 emissions, made up of 184 countries, in which the countries are ranked from least to most pollutant.
In addition to its total emissions of CO2 into the atmospher, which logically depend, among other variables, on the country's population, it is convenient to analyze the behavior of its emissions per inhabitant. In the table we see that per capita CO2 emissions in United States, have increased in 2021, in which they have been 14.24 tons per inhabitant.
United States belongs to the group of countries that emit the most CO2 per inhabitant.
If you look at evolution f CO2 emissions per 1000 dollars of GDP, which measures, for the same country, the "environmental efficiency" with which it is produced over time. In the last period, United States, has emitted 0.23 kilos for every $ 1,000 of GDP, the same as in 2020.
In the table we can see the evolution of CO2 emissions, which have decreased in the last ten years, as have per capita emissions and as well as CO2 emissions per $ 1,000 of GDP.Total carbon dioxide emissions have also decreased compared to 2016, although per capita emissions have increased in this period.