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The Scripps Institution of Oceanography, UC San Diego, reported a daily average carbon dioxide (CO₂) at Mauna Loa, Hawaii, of 428.63 parts per million (ppm) on April 26, 2024, as illustrated by the image below.  This is the highest daily average on record at Mauna Loa, which is the more remarkable since the annual CO₂…

The Scripps Institution of Oceanography, UC San Diego, reported a daily average carbon dioxide (CO₂) at Mauna Loa, Hawaii, of 428.63 parts per million (ppm) on April 26, 2024, as illustrated by the image below.  This is the highest daily average on record at Mauna Loa, which is the more remarkable since the annual CO₂…

On March 15, 2024, the daily average carbon dioxide (CO₂) at Mauna Loa, Hawaii, was 427.93 parts per million (ppm), as illustrated by the image below, adapted from NOAA.  This is the highest daily in situ average in the NOAA record at Mauna Loa, which is the more remarkable since the annual CO₂ maximum is…

On March 15, 2024, the daily average carbon dioxide (CO₂) at Mauna Loa, Hawaii, was 427.93 parts per million (ppm), as illustrated by the image below, adapted from NOAA.  This is the highest daily in situ average in the NOAA record at Mauna Loa, which is the more remarkable since the annual CO₂ maximum is…