Climate theory fit only for dustbin of history

WHEN we are being penalised for the expansion of our economy through crippling carbon taxes, it is vital everyone is aware of the true history of CO2 levels in the atmosphere.

Michael Job (Letters, February 28) questions my figures on these levels.

After 35 years of atmospheric cooling from 1940 to 1975, when Newsweek magazine was warning of an impending ice age, the level of CO2 in the atmosphere was approx 0.033% (330ppmv — parts per million by volume).

By 1997, when the Kyoto protocol came into being, the level of CO2 in the atmosphere was approx 0.037% (370ppmv). The difference between those figures is 0.004% by volume or 40ppmv. Fluctuation in the levels of CO2 has happened throughout history as CO2 concentration follows the temperature changes in the oceans.

What is being propagandised by the Intergovernmental Panel on Climate Change (IPCC), and I assume Mr Job, is that a rise in CO2 levels is entirely unnatural and must be man-made.

The IPCC has constructed a history of CO2 levels in the atmosphere based on gas bubbles trapped in Antarctic ice cores and have decided to ignore the 90,000 readings by chemical analysis dating back to 1812 performed by the pioneers of modern physics, chemistry and biology. Analysis using the Pettenkofer process (1857) was demonstrated to be accurate to +/- 3ppm and showed CO2 in the atmosphere to be as high as 400ppm at various times.

The IPCC’s pre-industrial figure of CO2, at 280ppm, is based on ice-core samples only, but according to Prof Zibigniew Jarworowski of the Central Laboratory for Radiological Protection in Warsaw, ice cores are likely to be contaminated in the drilling process and do not constitute a closed system to sample CO2 accurately.

Last December, 650 of the world’s most eminent climate scientists voiced their disapproval of the man-made theory of global warming to a US Senate Committee. This was 12 times more than the 52 scientists who authored the 2007 IPCC report.

At www.petitionproject.org, 34,000 scientists also disagree with the IPCC’s views.

Until the EU and UN can come up with a global taxation system which can regulate the output of the sun, I suggest we consign “climate change” to the dustbin of history.

Ultan Murphy

Carewswood

Castlemartyr

Co Cork