Does Carbon Dioxide Cause Warming? The Data Say NO

On 22 September, the winter maximum ice sheet extent across the Antarctic reached its greatest area since satellite measurement of the ice extent began in 1979 [1].

This is consistent with satellite lower tropospheric temperature data for the South Polar region at Dr Roy Spencer’s Web site [2] which reveals a slight but not statistically significant rate of cooling for the region for the 36 years of satellite measurement.

Coinciding with this, measurements of the atmospheric CO2 have been collected by NOAA at the South Pole and the data is available on the World Meteorological Organisation Web site [3]. It shows that the CO2 concentration has increased by 17.7% in the same period.

Confirmation of this disparity is available on the WMO Web site where measurements by CSIRO are provided for the CO2 concentration at the Antarctic stations of Casey [4] and Mawson [5]. Comparison of the CO2 concentration with the station’s average temperature data, available at the Bureau of Meteorology Web site [6], showed that both stations have experienced slight, -0.78 deg C per century at Casey and -1.43 deg C per century at Mawson, but not statistically significant cooling over the terms of the measurement. However the CO2 concentration has increased at Casey by 9% in 16.5 years and at Mawson 11.4% in 23 years.

These results are clear evidence that the IPCC proposition that increasing atmospheric CO2 concentration causes warming of the Earth’s surface is invalid. As the rate of increase of atmospheric CO2 has been much the same across the whole of the globe, the above puts paid to the CO2 – global warming fraud.

[6] [Direct links: Casey; Mawson; use the “All years of data” link at the top right to download a ZIP file.]

Bevan Dockery, B.Sc.(Hons), Grad. Dip. Computing, retired geophysicist.

Fellow of the Australian Institute of Geoscientists,
Member of the Australian Society of Exploration Geophysicists,
Member of the Society of Exploration Geophysicists,
Member of the European Association of Exploration Geophysicists,
Member of the Australian Institute of Mining and Metallurgy.

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