Anger over 'untrue' climate change claims - BBC News

When I was on the Faculty of Defense Systems Management College and teaching Software Acquisition; I would inform my classes that Mathematical Models are nothing more then INFERENTIAL attempts to abstractly simulate a particular system. There are two main types: Deterministic Models which will always produce the same output from a given starting condition or initial state. The second is a Probabilistic model which simulates a distribution of possible outcomes with a computed probability of how likely each event is to occur. In both cases these models are totally dependent upon the ASSUMPTIONS made in their construction. Specifically, all modeling involves the assumption of absolute linearity between discreet variables. Said another way; it means that a change on one variable results in a corresponding change in an associated variable in which an assumed linear relationship is modeled to exist. Accordingly, if the assumed linearity between variables is faulty; then the models results are suspect. This is an immutable fact.

According to the published data, former Chancellor Nigel Lawson is correct.