by A. May-(Javier), February 6, 2019 in WUWT
According to the IPCC at least 77%, but more probably 120%, and up to 200% of the observed warming, has been caused by GHGs.
The rate of CO2 change (the atmospheric increase in CO2 every year) has been increasing almost linearly since 1959 and is currently ~2.4 ppm/year.
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Figure 2. Mauna Loa rate of increase in CO2 (ppm/year). Thin line, 12-month increase. Thick line, gaussian smoothing. Red line, 2nd order polynomial least-squares fit to the yearly increase.
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