RMT and TSSA general secretaries defend industrial action as majority of Zone 1 stations are closed.
Parts of Europe have been hit by bitterly cold temperatures and blizzards, with temperatures as low as minus 25 degrees Celsius.
The 24-hour walkout from 8 January will see the majority of stations in Zone 1 closed.
China's Harbin International Ice and Snow Sculpture Festival models an entire city in ice.
Source close to negotiations tells IBTimes UK there has been 'lots of movement' in jobs dispute.
General secretaries Mick Cash and Mick Wheelan say they want to meet the senior Conservatives.
Morris dancers stage a torchlit wassailing ceremony in an orchard to ensure a good crop of cider apples for the year ahead.
Drivers now plan to walkout on 10, 11 and 14 January in dispute over rail guards.
Station staff represented by the RMT and TSSA unions are planning to walkout on 8 January.
ASA has asked both the companies not to display the ads again in its current format.
Bosses met with drivers' union Aslef at mediation service Acas to discuss rail guard dispute.
Andy McDonald spoke to IBTimes UK as protests against fare hikes are held across Britain.
Authorities said the blaze in Valparaiso was fuelled by gusty winds, low humidity and high temperatures.
Rail fares in the UK were about six times more than elsewhere in Europe.
EXCLUSIVE: Data compiled by IBTimes UK shows how absences are affecting the network.
TSSA and RMT trade unions will be in negotiations with Underground bosses on 4 January.
More than 1,500 eggs and hundreds of kilograms of flour are thrown in the annual battle.
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Government criticised for its failure to take action against failing train operators.
As per the contract signed on 11 December, the total price of the 80 planes was $16.6bn.
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TSSA and RMT union members will walkout for 24-hours beginning on the night of 8 January.
Unite general secretary is leading negotiations for the union as walkout looms.
Pictured at dusk or in darkness, the ever-changing British capital glitters with jewel-like hues.
RMT chief Mick Cash says industrial action on the cards in jobs row.
Mick Whelan, the general secretary of train drivers' union Aslef, spoke to IBTimes UK.
Walkout over pay is just one of many actions for the Christmas period across the UK.
IBTimes UK uncovered the comments as Britain faces more industrial action before Christmas.
Industrial action and planned engineering works will impact on those getting away for Christmas.
Airline branded the industrial action as 'unnecessary' and said its flying schedule would be unaffected.