The climate during the Holocene



11/09/2018 21:00 - Posted by Tom van Leeuwen
Over the last 8,000 years, the atmospheric CO2 concentration has risen steadily, while the average global temperature has declined. This fact contradicts the claim that CO2 is the main "global warming" control knob.
CO2 is a greenhouse gas but it's warming capability is almost saturated. Even at much lower concentrations it absorbs almost all energy that is emitted in it's absorption wavelength bands, so adding more CO2 to the atmosphere has no measurable effect on global temperatures.