Before you go too far down the path of CO2-climate sensitivity, please consider the work of Ed Lorenz who was interested in models that emulate sudden jumps from one equilibrium state to another, in patterns similar to the paleo-climatic record.
In his paper "Climate is what you expect," Lorenz wrote: A climatologist encountering [fluctuations in real data] could not, on the basis of the data alone, say whether the dominant cause of the changes was external or internal. Elsewhere (climate of the model), for climate variations over a 100- year interval, as given by a simple one equation model designed to support internally produced climatic changes: "Two or more distinct climates may well be compatible with the same external conditions." Finally: "If the climate system is treated as a dynamical system--a system whose evolution is governed by precise laws, or, more frequently, by equations that represent such laws, the climate then becomes identifiable with the attractor of the dynamical system—but the dynamical system may have more than one attractor!" Can we rely on single variable linear or logarithmic (non-chaotic) forcing to predict the future state of the climate system? Jim -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/geoengineering?hl=en.
