The jet stream could prove to be one of the most influential forces shaping our future. Scientists investigate the mysterious, high altitude "river of air" - a force so powerful that it drives some of the most destructive weather on our planet. Narrated by Jack Fortune.
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How rain, wind, sleet, snow and fog has been captured - and how our ever-changing weather has been celebrated - in art through the ages.
Mussorgsky, Stravinsky. Glinka and Balakirev are among the composers whose music accompanies a look at one of the archetypal forms of Russian culture: the fairytale.
Valery Gergiev and the Mariinsky Opera front the fourth part of a journey through the country and its music.
The threat continues in the nuclear docudrama. Concludes tomorrow at 10pm.
