Quick Link: “NOAA Reports Arctic Carbon Dioxide Reaches Highest Levels in 800,000 Years”

For the record, that would be 400 parts-per-million of atmospheric CO2, showing up at some Arctic measuring stations. Most of us are not far behind at about 396 ppm.


The concentration of carbon dioxide in the atmosphere of six remote Arctic sites in Alaska, Canada, Iceland, Finland, and Norway reached 400 parts per million (ppm) this spring, according to measurements from the National Oceanic and Atmospheric Administration (NOAA). This marks the first time a monthly average measurement for CO2 attained the 400 ppm mark in a remote location.

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