Atmospheric CO2
February 2023
420.41
parts per million (ppm)
Mauna Loa Observatory (at Maunakea), Hawaii (NOAA)
Preliminary data released March 5, 2023
Atmospheric CO2
February 2023
420.41
parts per million (ppm)
Mauna Loa Observatory (at Maunakea), Hawaii (NOAA)
Preliminary data released March 5, 2023