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OT: Moorabal/Lal Lal wind farm 27-May-2009 At 11:53:09 AM TonyB

Message

On 26/05/2009 evanbb wrote:

Evan,
A few comments on your link to your NS article. (If you read my earlier post, I pointed out how Al Gore's ice cores do NOT give causual evidence).
It states:
"after the initial 800 year lag, temperature and CO2 concentrations in the atmosphere rise together ".
That is, ice core data shows that CO2 increase FOLLOW temperature increases. That is, CO2 is NOT a cause !

"Models suggest that rising greenhouse gases, including CO2, explains about 40% of the warming as the ice ages ended."
Models are not proof. Is is easy to make a model give any result you want. This statement is made after stating that CO2 increases are an effect of warming, not a cause !

The major long term changes in climate are the result of the following:
21,000 year cycle: Earth's combined tilt and elliptical orbit around the Sun ( precession of the equinoxes )
41,000 year cycle: Cycle of the +/- 1.5° wobble in Earth's orbit ( tilt )
100,000 year cycle: Variations in the shape of Earth's elliptical orbit ( cycle of eccentricity )

CO2 is a minor greenhouse gas. By far the major greenhouse gas is water vapour. CO2 increases should cause a very small increase in global temperatures due to greenhouse effect. In theory a doubling of CO2 concentrations should give about a 1 degree temperature increase, ignoring the earth's self regulation mechanisms. This also assume that increase in CO2 are due to man.

You may enjoy Prof Bob Carter's excellent series of videos on climate:
http://www.youtube.com/watch?v=iCXDISLXTaY