Daily Climate Report (11).

Today is Friday 22nd September 2023. CO2 Earth reports an atmospheric CO2 level for the 21st September of 417.6 ppm, up from 416.31 ppm on the 21st September 2022, an increase of 1.29 ppm, or ~0.31% p.a.

The Keeling Curve reports an atmospheric CO2 level for the 21st September of 417.32 ppm = 808.7 mg/m^3 = ~3,256.9 GtCO2.

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