Posted 27 May 2011

"We conclude that atmospheric CO2 levels should be above 150 ppm to avoid harming green plants and below about 5000 ppm to avoid harming people. That is a very wide range, and our atmosphere is much closer to the lower end than to the upper end. The current rate of burning foss...

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Posted 25 May 2011

"In June 2010, I published a graph predicting that temperatures will fall sharply around October 2010. Exactly this happened. Since then I have regularly updated the graphs and predictions. As the Southern Oscillation Index is still in the 'la Nina' region, the cooling will, al...

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Posted 18 May 2011

"The claimed justification is that the ETS levy is an “insurance policy” against the possibility that methane might contribute to a future of dangerous global warming, as the IPCC has theorized. But, as with any insurance, it should not be taken out unless the premium is reason...

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Posted 12 May 2011

"A doubling of the amount of methane in the atmosphere with its present composition would produce a warming equal to only about one thirtieth of the warming produced by a doubling of carbon dioxide. At present rates of increase it would take about 360 years for atmospheric meth...

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Posted 7 May 2011

Official temperature records have been maintained in New Zealand since shortly after European settlement began in 1840. Throughout the ensuing 150 years, mean  temperature levels remain stable. But NIWA (National Institute of Water & Atmospheric Research, the responsible governm...

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