Independent (UK): 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 …