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Sun's magnetic field may have caused freezing winter by Steve Connor, Science Editor, The Independent
Friday, April 16th 2010, 7:01 AM GMT
Co2sceptic (Site Admin)
It was the coldest winter in England since 1963 – the coldest in Scotland since 1914 – and weeks of ice, snow and sub-zero temperatures from last December to March defied predictions by climate-change scientists of milder, wetter winters. So what happened?

One theory suggests that last winter's cold temperatures were part of a pattern that is set to continue because of a complex interaction between the Sun's magnetic field and the high-altitude jet stream which dominates Britain's weather system. The jet stream normally brings mild, damp westerly winds over Britain during winter but this year it went into "blocking" mode, sweeping back on itself and allowing a bitterly cold north-east wind to blow over the country, bringing ice and snow with it.

Scientists have found a link between blocking changes to the jet stream that result in colder winters and variations in the "activity" of the Sun, as measured by alterations in its magnetic field. This could mean that the UK can expect more cold winters than usual in the coming decade, despite global warming.

The researchers behind the controversial idea emphasised that their findings do not contradict the scientific consensus on man-made climate change. They said that global warming is still set to dominate the world's climate, but that the relatively small region of Britain and north-west Europe could nevertheless be in line for more frequent, colder-than-expected winters, just like the last one.

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Source Link: independent.co.uk