Temperature records used by “climate Change” authorities begin in the mid 1800s. Their forecast models can be shown to fit there through the 1900’s. However, using the same models on the temperature series back to 1600, the models do not fit at all. No wonder the models don’t work for the 2000’s
Guest essay by Mike Jonas
Introduction
This article is the second in a series of four articles.
Part 1 of the series (Part 1) is here
In Part 1, simple mathematical formulae were developed to emulate the carbon dioxide (CO2.) contribution to global temperature change, as represented in the computer climate models.
This article uses the formulae to have a look at the Medieval Warming Period (MWP) and Little Ice Age (LIA).
Note : This article does not say anything new, or claim to find any new results. It has all been said many times before. But by using simple formulae that emulate the internal workings of the computer climate models, it allows the CO2 and non-CO2 components of global temperature change to be quantified using a spreadsheet [10] instead of a sophisticated climate model.
Please note : In this article, all temperatures referred to are deg C anomalies unless…
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