A Brief History of Atmospheric Carbon Dioxide Record-Breaking

WUWT
"Conclusions
Atmospheric CO2 concentration records were being broken long before anthropogenic emissions became significant.
Atmospheric CO2 levels were rising much faster than anthropogenic emissions from 1750-1875.
Anthropogenic emissions did not “catch up” to atmospheric CO2 until 1960.
The natural carbon flux is much more variable than the so-called scientific consensus thinks it is.
The equilibrium climate sensitivity (ECS) cannot be more than 2°C and is probably closer to 1°C.
The worst-case scenario based on the evidence is comparable to the IPCC’s most greentopian, best-case scenario.
Ice cores with accumulation rates less than 1m/yr are not useful for ECS estimations."