John Penhallurick’s Blog 8: Further evidence of the lack of correlation between changes in C02 and temperature


Further evidence of lack of correlation between human emissions of CO2 and global warming

The years  1929 to 1933 mark the beginning of the Great Depression. In 1929, human emissions of CO2 amounted to 1.17 Gt. By 1933, these had fallen to 0.8 Gt per year. Figure 6 shows what happened during this period. There was no corresponding decline in either temperature or carbon added to the atmosphere. Clearly over this period, the increase in temperature shows no relationship with human activity.

Figure 6

Comparison of human emissions and of temperature change and Carbon Dioxide measurements 1928-1933

You can now either go back to my no.1 blog to access any or all documents

1. Evidence that the IPCC’s case is a fraud.

or you can go the next document:

9. Evidence that CO2 is a mild greenhouse gas compared to water vapour.

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About jpenhall

I am a keen birder and have devoted my life especially since retirement to a study of the world's birds. But I was also a professor, with thirty years experience of both carrying out and evaluating research.But I detest shoddy research. Thus I reject almost wholly the propaganda of the IPCC and its minions
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3 Responses to John Penhallurick’s Blog 8: Further evidence of the lack of correlation between changes in C02 and temperature

  1. Pingback: John Penhallurick’s Blog 1:Evidence that the IPCC’s case is a fraud | jpenhall

  2. Robert Gunning says:

    Most interesting, a good counterfactual.

  3. Pingback: John Penhallurick’s Blog 7: Is carbon dioxide a threat? Further evidence from the Earth’s total CO2 budget | jpenhall

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