Co2 emissions as a share of total worldwide co2 emissions reached 15.2% in 2017 in the USA, according to World Bank / EIA. This is 2.08% less than in the previous year.
Historically, CO2 emissions as a share of total worldwide CO2 emissions in the USA reached an all time high of 31.4% in 1968 and an all time low of 15.2% in 2017.
USA has been ranked 2nd within the group of 79 countries we follow in terms of CO2 emissions as a share of total worldwide CO2 emissions.
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