By Christopher Booker
A notable story of recent months should have been the evidence pouring in from all sides to cast doubts on the idea that the world is inexorably heating up. The proponents of man-made global warming have become so rattled by how the forecasts of their computer models are being contradicted by the data that some are rushing to modify the thesis.
So a German study, published by Nature last week, claimed that, while the world is definitely warming, it may cool down until 2015 "while natural variations in climate cancel out the increases caused by man-made greenhouse gas emissions".
A little vignette of the media's one-sided view was given by recent events on Snowdon, the highest mountain in southern Britain. Each year between 2003 and 2007, the retreat of its winter snow cover inspired reports citing this as evidence of global warming.
In 2004 scientists from the University of Bangor made headlines with the prediction that Snowdon might lose its snowcap altogether by 2020. In 2007 a Welsh MP, Lembit Opik, was saying "it is shocking to think that in just 14 years snow on this mountain could be nothing but a distant memory".
Last November, viewing photographs of a snowless Snowdon at an exhibition in Cardiff, the Welsh environment minister, Jane Davidson, said "we must act now to reduce the greenhouse gases that cause climate change".
Yet virtually no coverage has been given to the abnormally deep spring snow which prevented the completion of a new building on Snowdon's summit for more than a month, and nearly made it miss the deadline for £4.2 million of EU funding. (Brussels eventually extended the deadline to next autumn.)
The rest is here.