St Petersburg marked earth hour by turning out the lights of Palace Square. Climate change protesters held a candle lit vigil at 8.30pm local time.
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It has caused chaos on the roads and rail network, brought down trees, grounded planes, toppled lorries and also a bus in Cambridgeshire.
The nature of Ian Stewart's killing of his fiancee Helen Bailey and plot to evade detection raised doubts about the death of his wife Diane.
From the streets to workplaces and even schools, the Tonight programme investigates sexual harassment faced by women in Britain.