Science is not consensus, it must be based on facts and not opinion (Eugenics is the last example of consensus driving the wrong theory), tectonic plate theory was correct before it became accepted, it took all the old opponents who refused to look at the data to die before it became accepted.
The models for IPCC Climate change are the extrapolation, the models have as their basis that an increase in CO2 will warm the earth but then add on that other factors amplify this increase by a factor, this is called climate sensitivity.
The real data when compared to the modelled data shows that this climate sensitivity is too high, the real data is just about matching the lowest modelled temperature data.
If the climate sensitivity is 1.0 then only CO2 drives the temperature increase, values higher than 1.0 add other factors. Based on the real measured increase in temperature to date a climate sensitivity of 1.0 is most likely.
All the hype is based on climate sensitivities of 2 or higher, but the data does not support 2.0 but the 2.0+ models are the ones promoted.