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 Atmospheric CO2 is accelerating upward from decade to decade.
For the past ten years, the average annual rate of increase is 2.07 parts per million (ppm). This rate of increase is more than double the increase in the 1960s.
See the table below.
Decade Total Increase Annual Rate of Increase
2002 – 2011 20.72 ppm 2.07 ppm per year
1992 – 2001 16.00 ppm 1.60 ppm per year
1982 – 1991 15.10 ppm 1.51 ppm per year
1972 – 1981 13.95 ppm 1.40 ppm per year
1962 – 1971 8.88 ppm 0.89 ppm per year
Source Data:
Data is calculated by CO2Now using annual growth rates published by NOAA-ESRL based on its measurements of the CO2 concentration in the atmosphere (Mauna Loa Observatory).
Related Information:
CO2Now | Annual Data for Atmospheric CO2 (Scripps and NOAA -- Mauna Loa Observatory)
CO2Now | Global Carbon Emissions
CO2Now | Annual CO2 Concentratioons
CO2Now | Global Temperature Update
CO2Now | The Climate Sheet: Big Picture Data |
