Global Temperature and CO2 Update – June 2012

I have always been a skeptic of Anthropogenic Global Warming (AGW) theory that states increased atmospheric CO2 concentrations , caused by humans, is causing our planet to rapidly warm and I have outlined the scientific basis of this skepticism on a previous post here.  I periodically give updated to CO2 and temperature data every 3 to 6 months and it’s time to do that again.

Here is the graph of atmospheric CO2 measurements as gathered by the Mauna Loa observatory and you can see that the CO2 levels are continuing to increase. 

Here are the plots of global temperature averages compiled by the Climate Research Unit and the University of Alabama Huntsville.   

Let’s now look at these same temperature graphs but starting with 1998 and you can easily see that we are still in a period of flat temperature growth.

Furthermore, if increasing atmospheric concentrations of CO2 causes increased global temperatures then we should see a linearly increasing line when we plot global temperature anomaly (delta from a baseline period) on the Y-axis and atmospheric CO2 concentration on the X-axis.  You can see that something happened around the 370 ppm point to stop that trend.

So there is no change from my March update on AGW and Earth is refusing to conform to the dire predictions of the AGW cult.

Carry on.

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6 Responses to Global Temperature and CO2 Update – June 2012

  1. tomwys says:

    Here’s another way to look at it that also goes back a bit further with disconnects throughout the last thousand years!

  2. RJ says:

    Probably one of the biggest problems is the history of CO2 concentrations. Some sources show it as high as 7%, while others claim it to never have been as high as today. If any research is justified, it’s to either determine accurate past CO2 concentrations, or define the possible error margin. Only then can we begin looking at CO2/temperature correlation.

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