Martin A

I offer support for your last point. Geological evidence commonly is insufficient to reach definitive answers (hence this entire thread). Not all the critical evidence required to make determinative conclusions may be preseved. Accordingly geologists may hold to several hypotheses simultaneously to explain the same set of facts. This methodology was first formulated by T.C.. Chamberlin in 1889 (published in 1890) as "The Method of Multiple Working Hypotheses". Knowledge of this seems largely confined to geology, but clearly reflection suggests it is in operation in the cutting edge of most sciences. Clearly not practiced by computer modellers, however.

Chamberlin's methodology ought to be force fed to all climate scientists.