Two unaddressed issues

Posted on: January 30, 2019 at 16:14:01 CT

First, climate change models are mathematical models involving a very large number of algebraic equations. In each of those equations the value of a dependent variable is determined by varoius independent variables (or dependent variables whose values are determined in other equations).

Each of the equations is based upon certain assumptions, largely assumptions about the factors that cause the dependent variable to change.

Essentially, the assumptions made determine the outcome. I.e. let me make the assumptions underlying the model and I will produce whatever outcome you want.

The predictive power (accuracy of a mathematical modle can be measured), i.e. see regression analysis. In other words whether or not how fully an equation explains the changes in the dependent variable can be measured.

The climate change community has never adequately explained its modeling and the assumptions that underly its models. Perhaps PBS should do a series or multiple series in which the climate change community is given a chance to explain to the public, not just to their own scientific community its models, the facts, etc.; in other the information that allows it to conclude that climate change is "settled science".

All models require data and the basic data for the climate change models is temperatures. The climate change community has never really explained why it believes the temperatures it's using are correct and are adequate data. I.e. how many temperature measurements are used for a given geographic area, how are micro climate temperatures accounted for by the models, etc.

If the scientific case is overwhelming, the climate change community should fully make its case to the public and let the public make a call.