Daily Climate Report (18).

Today is Friday 29th September 2023. CO2 Earth records an atmospheric CO2 level of 418.2 ppm = 810.4 mg/m^3 = 3,263.767 GtCO2 for the 28th, up from 415.38 ppm on the 28th September 2022. This is an increase of 2.82 ppm = 0.68% p.a.

The Keeling Curve's reading is for the 27th September, and is 418 ppm. The NOAA Global Monitoring Laboratory records an atmospheric CO2 level (NB, these are mole fractions in dry air) of 418.2 ppm for the 28th & 418.36 ppm for today, the 29th. 418.36 ppm = 810.7 mg/m^3 = 3,265.015 GtCO2.

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