Global atmospheric concentration of carbon dioxide by decade 1880-2018

Average level of carbon dioxide (CO2) in the atmosphere worldwide between the 1880 and 2018, by decade

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Release date

2019

Region

Worldwide

Survey time period

1880 to 2018

Supplementary notes

Data from March 1958 through April 1974 have been obtained by C. David Keeling.
* Estimate based off of previous reports.
CO2 expressed as a mole fraction in dry air, micromol/mol, abbreviated as ppm

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