The Anthropogenic Global Warming Hypothesis and the Causality Principle

Abstract

The scientific viability of the Anthropogenic Global Warming Hypothesis (AGWH) has been evaluated in terms of the Causality Principle (CP), which is the foundation of scientific philosophy. The colloquial form of the CP is most appropriate here, especially when presenting to a general audience, as: “Every effect has a cause, and the cause must precede the effect”. Furthermore, “for a complex system comprising a series of processes, if any step is non-causal then so is the entire process”. It is important to note that the CP is independent of the mechanism of the change just as are the Laws of Equilibrium Thermodynamics for which there exists a close parallel. If this were not the case, a process may appear to be causal via one mechanism but noncausal via another, even though the initial and final states or the declared cause and effect had not changed; an intolerable conflict and one via which al processes could be declared to be “causal” for convenience and in defiance of common sense. Based on the available experimental data, the relationship that is expressed by the AGWH (that rising CO2 concentration in the atmosphere is responsible for global warming (GW) as reflected in the rise in temperature) is noncausal because the alleged cause (the change in the atmospheric [CO2]) lags the effect (rise in the temperature) in violation of the CP and hence the AGWH lacks scientific validity.

Presenters

Digby Macdonald
Professor in Residence, Department of Nuclear Engineering, University of California at Berkeley, California, United States

Details

Presentation Type

Paper Presentation in a Themed Session

Theme

The Nature of Evidence

KEYWORDS

Anthropogenic, Global, Warming, Hypothesis, Causality