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Increasing Atmospheric Greenhouse Gas Concentration

11/14/2022

According to the U.S. National Oceanic and Atmospheric Administration (NOAA), greenhouse gases continue to accumulate in the atmosphere.  Data, presented at the Cop27 climate talks, confirmed a new record for carbon dioxide of 415 ppm in mid-2021, according to the World Meteorological Organization (WMO).  NOAA reported on an upward trend in methane, a potent greenhouse gas.  In January 2002, the monthly mean value was 1,774 ppb.  This increased to 1,807 ppb in January 2012 and at the beginning of 2022, attained 1,908 ppb.