Ultraviolet light shone on cold winter conundrum

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http://www.bbc.co.uk/news/science-environment-15199065

Recent cold winters that brought chaos to the UK and other places in northern Europe may have their roots in the Sun's varying ultraviolet emissions.

The latest satellite data shows the UV output is far more changeable than scientists had previously thought.

A UK scientific team now shows in Nature Geoscience journal how these changes lead to warmer winters in some places and colder winters in others.

The researchers emphasise there is no impact on global warming.

You might be able to say 'this winter is more likely to be warm' or 'more likely to be cold' with more accuracy”

End Quote Dr Adam Scaife UK Met Office