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Politics : The Environmentalist Thread
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To: Peter Dierks who wrote (6119)3/31/2006 7:07:11 PM
From: maceng2  Read Replies (2) of 36921
 
The link to Amy Ridenour's article makes it clear the argument is to dispute the "CO2 global warming" theory rather then discuss whether global warming is occurring or not. Several facts are not disputed...

The primary greenhouse gas is water vapor, not carbon dioxide.7

yes I agree, and?

Most of the carbon dioxide in the atmosphere does not come from the burning of fossil fuels. Only about 14 percent of it does

If that. An understanding of chemical reactions is needed though. What "steady state" means and how a small change can start making things move in one direction or another.

The subject matter in other links quoted has been covered in my recent posts too.

Re recent temperature measurements.

My understanding is that surface temperatures for the period approx. 1860 till today has been gathered from weather stations around the world, in Europe and USA in particular. A few years ago I read some of the reports. Calibration over the years was an issue as was "local urban warming" (cities getting warmer and the weather stations in cities recording this). From my faulty recollection, all these calibration issues were dealt with, and the data presented believed accurate.

I am interested enough to go and look into this matter again though.

Here is one data set. I picked this one because there was a BBC program on the site in question.

arm.ac.uk

Other temperature data from ice cores, tree rings, and other studies have been cross correlated. My understanding is there is a high confidence that the recorded temperature data, both recent and ancient, is accurate for the studies involved.
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