US CO2 Emissions Chart
Current US CO2 Emissions: 5.19 Million kt
US CO2 Emissions for Dec 2013
Mean: 4.72 Million kt
Median: 4.82 Million kt
Min: 2.88 Million kt (Dec 1961)
Max: 5.80 Million kt (Dec 2005)

US Carbon Dioxide Emissions — kilotons (kt). Includes CO2 emissions from burning fossil fuels and cement manufacturing.

Source: World Bank > US > US CO2 Emissions