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Atmospheric Greenhouse Gases
Trends in Atmospheric Carbon Dioxide
Monthly CO2 Average  (NOAA Data Source)

February 2024:  424.55 ppm

February 2023:  430.30 ppm

Last updated: Mar 5, 2024

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History of atmospheric carbon dioxide from 800,000 years ago until the end of the most recent GLOBALVIEW+ CO2 collection

Trends in Atmospheric Methane
Global CH4 Monthly Means   (NOAA Data Source)

November 2023:  1934.16 ppb

November 2022:  1923.63 ppb

Last updated: Mar 5, 2024

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