Breaking news :/
Based on daily data, the atmospheric CO2 concentration at Mauna Loa averaged ~424.0 ppm over May 2023. That's ~3.0 ppm higher than last year, and that's a lot.
It is also the highest monthly average on record, and most probably of the last 15 million years.

#co2 #ClimateChange #globalwarming #maunaloa #greenhousegas #emissions