Guardian: Even in a country where discussing the weather is almost hardwired into its citizens’ DNA, many people are struggling to make sense of the sustained icy conditions that have transformed Britain into a real-life Narnia. The extraordinary conditions that last week saw a temperature of -22.3C registered in Altnaharra, Scotland, close to the -22.9C at the south pole, are expected to continue for another week The extreme weather is stretching the resources – and the ingenuity – of …