The authors of this report claim that there is no published, peer reviewed, statistically valid proof that past increases in atmospheric CO2 concentrations have caused the officially reported rising, even claimed record setting temperatures. ——- From the Second Edition Report: ABSTRACT The objective of this research was to determine whether or not a straightforward application of the “proper mathematical methods” would support EPA’s basic claim that CO2 is a pollutant.
Moreover, these research results clearly demonstrate that once the solar, volcanic and oceanic activity, that is, natural factor, impacts on temperature data are accounted for, there is no “record setting” warming to be concerned about.
In fact, there is no Natural Factor Adjusted Warming at all.
Both dealt carefully and properly with econometric simultaneous equation parameter estimation issues in the two separate structural analyses that were carried out. The first research effort focused on testing the explanatory power of using just ENSO variables (i.e., specifically MEI related variables) and volcanic activity and was publicly released as the August 2016 Peer Reviewed report.
The Peer Reviewed Second Edition, publicly released in April 2017, explicitly included all three Explanatory variables, that is, solar, volcanic and oceanic/ENSO activity.
Importantly, there have been no revisions to either research report. Stated simply, their claim is that GAST is primarily a function of four explanatory variables: Atmospheric CO2 Levels (CO2), Solar Activity (SA), Volcanic Activity (VA), and a coupled ocean-atmosphere phenomenon called the El Nino-Southern Oscillation (ENSO.)” However, the model explanatory variables used in the two separate research activities were very different.
Both research efforts set out to test for the Existence of a “Tropical Hot Spot” and the Validity of EPA’s CO2 Endangerment Finding. Readers should recall frequent debates among climate scientists as to which Natural Factor explanatory variable was most important – solar or oceanic/ENSO activity.
So they are a total waste of taxpayer and ratepayer dollars.
And, very harmful to job creation, economic growth and the poor.
Previously climate skeptics have raised myriad reasons why reducing human CO2 emissions would have little effect on global temperatures despite arguments based on elaborate climate models that had never been proper validated.