Based on 23 daily values, the December average of atmospheric CO2 concentration at Maunakea, close to Mauna Loa*, was 419.0-419.1 ppm. That's 2.3-2.4 ppm more than a year ago.
*) observatory out of operation due to lava flow
Based on 23 daily values, the December average of atmospheric CO2 concentration at Maunakea, close to Mauna Loa*, was 419.0-419.1 ppm. That's 2.3-2.4 ppm more than a year ago.
*) observatory out of operation due to lava flow
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