Shaun Walker: Temperatures in parts of Ukraine and other Eastern European countries are hovering around -30C (-22F).
Michael McCarthy: Official security warning as animal's horn fetches more than gold on black market.
A loss of sea ice could be a cause of the bitter winds that have swept across the UK in the past week, weather experts say
Britain is lying in wait for widespread snow this weekend after another bitterly cold day in which temperatures in some places struggled to get above freezing.
Minister accused of failure to act as protest against rise in fatalities gathers momentum
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