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COP20 President and Peruvian Minister of Environment Manuel Pulgar slams his mallet on December 14, 2014, during the marathon UN talks in Lima. (CRIS BOURONCLE/AFP/Getty Images)

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(Christopher Furlong/Getty Images)

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A man dressed as Santa Claus drives his old Fiat 500 in the Piazza Venezia in central on December 23, 2014. (FILIPPO MONTEFORTE/AFP/Getty Images)

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Australian Governor General Peter Cosgrove (R) with China's President Xi Jinping and his wife Peng Liyuan, as she holds a wombat in the grounds of Government House on November 17, 2014 in Canberra, Australia. (David Gray - Pool/Getty Images)

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People dressed in Santa Claus costumes attend a celebration for the Christmas Eve at Xinjiekou on December 24, 2013 in Nanjing, China. (ChinaFotoPress/Getty Images)

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Iraqi Christians light candles inside a shrine in the grounds of Mazar Mar Eillia (Mar Elia) Catholic Church on December 12, 2014 in Erbil, Iraq. (Matt Cardy/Getty Images)

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Cuban President Fidel Castro (L) and his brother Raul, Minister of the Revoutionary Armed Forces, in Havana, during a meeting of the Cuban Parliament, December 23, 2003. (ADALBERTO ROQUE/AFP/Getty Images)

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U.S. Attorney General Eric Holder speaks at the Justice Department in Washington, DC, December 3, 2014. (Mark Wilson/Getty Images)

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Canada's Prime Minister Stephen Harper at Ottawa International Airport on March 18, 2014 in Ottawa, Ontario. (Cole Burston/AFP/Getty Images)