Questions on the rate of global carbon dioxide increase

Watts Up With That?

Guest essay by Robert Balic

A summary of a problem with estimates of the average concentration of carbon dioxide in the atmosphere and questioning of how it is possible that the rate of increase correlates well with global temperature anomalies.

I saw an interesting plot in the comments of of WUWT a while ago. It was based on the work of Murray Salby who pointed out the strong correlation between the concentration of carbon dioxide in the atmosphere (NOAA ESRL CO2 at Mauna Loa) and the integral of mean global temperature anomalies. How well the CO2 levels correlate with various temperature anomalies can be seen in this plot of the derivative of CO2 levels with respect to time (rate of CO2 level increase) alongside some estimates of global temperature anomalies – HadSSTv3 SH (southern hemisphere sea-surface temperatures) and RSS (lower troposphere temperatures from satellite observations).

http://woodfortrees.org/graph/esrl-co2/mean:12/derivative/scale:3/plot/hadsst3sh/from:1958/offset:0.3/plot/rss/offset:0.2/from:1990

The first time that…

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