Uploaded April 2024 | Updated September 2026, 1 hour ago
Atmospheric levels of the three most important human-made greenhouse gases - carbon dioxide, methane, and nitrous oxide - continued their steady climb during 2023, according to the latest measurements from NOAA and CIRES scientists.
Concentrations of heat-trapping gases are measured regularly by NOAA’s Global Monitoring Laboratory (GML). Looking back at 2023, GML scientists found the global average surface concentration of carbon dioxide, averaged over the year, was 419.3 parts per million (ppm). In 2023, the concentration annual increase was 2.8 ppm.
In this animation, see how the 2023 average greenhouse gas concentrations compare to the pre-industrial era.
Read more about the 2023 greenhouse gas averages here:
https://cires.colorado.edu/news/global-greenhouse-gas-levels-continued-increase-2023
Animation produced by Lauren Lipuma at CIRES.
Atmospheric levels of the three most important human-made greenhouse gases - carbon dioxide, methane, and nitrous oxide - continued their steady climb during 2023, according to the latest measurements from NOAA and CIRES scientists.
Concentrations of heat-trapping gases are measured regularly by NOAA’s Global Monitoring Laboratory (GML). Looking back at 2023, GML scientists found the global average surface concentration of carbon dioxide, averaged over the year, was 419.3 parts per million (ppm). In 2023, the concentration annual increase was 2.8 ppm.
In this animation, see how the 2023 average greenhouse gas concentrations compare to the pre-industrial era.
Read more about the 2023 greenhouse gas averages here:
https://cires.colorado.edu/news/global-greenhouse-gas-levels-continued-increase-2023
Animation produced by Lauren Lipuma at CIRES.
