Visualizations : CO2 and temp deviations from the average of the past 420K years

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Created by: Bruce Created on: Monday September 17, 4:21 PM

Data file: Refined - 420,000 Years of CO2 Levels and Temp Deviations - Normalized

Data source: Carbon Dioxide Information Analysis Center

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Comments (3)

Bruce says:

This dataset makes it a little easier to see how the CO2 and temp are correlated. Though the differences in CO2 to the average are often small the larger trends help to show that it is most likely that increases in CO2 to indeed precede the increases in temp. Also note in this chart (select just CO2) that you can see we're climbing to all new CO2 highs, already 1.5 times greater than the average of 420K years!

Posted Monday September 17, 4:25 PM
Last edited Monday September 17, 4:26 PM
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Anonymous says:

uhmmmmm.... Bruce, no offense, but I don't see that.

Specifically, look at the onset of COLD periods. Especially look at 2137 through 1860 where CO2 was essentially flat, but temp nosedived.

Look at 2987 bottom for temp vs 2958 bottom for co2. It certainly looks to ME like co2 drops LAG cooling by "rather a lot" for each large cooling episode in the graph.

This graph looks to me like one where temp drives co2, not the other way around.

Posted Tuesday June 24, 12:57 PM
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Anonymous says:

Thanks for this graph. We need to get our heads out of the media driven frenzy of the moment and look at the correlation between C02 and temperature over meaningful time scales.

When looked at over a 420K period it becomes rather obvious that CO2 doesn't drive global temperatures. It is just one factor in the equation. Other variables are much more significant.

Posted Thursday July 03, 1:09 PM
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Visualizations : CO2 and temp deviations from the average of the past 420K years

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