[Ernest_at_the_Beach]

Looking at the PDF Linked just above:

**********************EXCERPT***********************************

***************************************************

Text from the PDF preceding Figure above:

***************************EXCERPT*********************************

CHAPTER 7: Introduction to the Atmosphere

(y). Causes of Climate Change

Figure 7y-1 illustrates the basic components that influence the state of the Earth's climatic system. Changes in the state of this system can occur externally (from extraterrestrial systems) or internally (from ocean, atmosphere and land systems) through any one of the described components. For example, an external change may involve a variation in the Sun's output which would externally vary the amount of solar radiation received by the Earth's atmosphere and surface. Internal variations in the Earth's climatic system may be caused by changes in the concentrations of atmospheric gases, mountain building, volcanic activity, and changes in surface or atmospheric albedo.

[Ernest_at_the_Beach]

fyi

[JimSEA]

I would like to see what the increase in CO2 is doing to the climate, if it can be determined. However, you can't do good science when you have, at the outset, your conclusions firmly in hand.

[Ron C.]

Hi Ernest,

Can't get here much these days... but had to jump in on this one. Methinks GOD handles our weather, gently attending the planet most of the time.

Yeah, that idea doesn't count with most 'scientists.' But, despite the 'bad stuff' that takes place with weather, we mostly enjoy the 'seasons,' year after year.

[mikrofon]

In the “dim time” I studied turbulent fluid dynamics, which though not specifically about climatic systems, the principles were the same — trying to predict some semblance of order from chaos, averaging out order-of-magnitude effects to get a “best guess.” Essentially, this is how we get the relatively short-term weather forecasts.

Re: the “Interstellar Dust” category, it could more broadly be expanded to include cosmic rays and other factors like core dynamics that affect the Earth’s magnetic field; not to mention unforeseen cosmic events such as even a miniscule asteroid event which could have drastic impacts.

Bottom line is, to be doctrinaire and claim that AGW is taking place is scientifically disingenuous...