A young woman dressed as a devil waves with fire on the bank of Vltava river near the Charles Bridge on December 5, 2014 in Prague, Czech Republic. Devils, angels and St. Nicholas were out in full force, roaming the streets to reward children who have been good and admonish those who have not in the annual Czech tradition known as Svaty Mikulas. (Photo by Matej Divizna/Getty Images)

Fireworks explode to form the letters “APEC” above the National Stadium, also known as the “Bird's Nest”, during a lights and fireworks show to celebrate the Asia-Pacific Economic Cooperation (APEC) Leaders' Meeting, in Beijing November 10, 2014. (Photo by Reuters/China Daily)

A Palestinian protester kicks a burning tyre during clashes with Israeli troops near Israel's controversial barrier that separates the West Bank town of Abu Dis from Jerusalem November 17, 2014. A Palestinian bus driver was found hanged inside his vehicle on Monday, an incident Israeli police described as a suicide but which the driver's family said they believed was an attack. Israeli police said the evidence suggested al-Ramouni had committed suicide, but rumors quickly spread in the Palestinian media that he had been killed by Jewish assailants, fuelling tension and violence in the divided city. (Photo by Ammar Awad/Reuters)

A news photographer take pictures of cars set alight by CETEG (State Coordinator of Teachers of Guerrero teacher's union) members at a City Congress parking lot in Chilpancingo, November 12, 2014. CETEG members broke into the congress building and set alight a fire in its principal hall during protests against the killing of the Ayotzinapa trainee teachers after the government said corrupt police in league with a local drug gang abducted and apparently murdered the students in the southwestern state of Guerrero in late September. (Photo by Jorge Dan Lopez/Reuters)

A woman holds a candle during a commemoration ceremony at a monument for Holodomor victims, in Kiev November 22, 2014. Ukraine on Saturday marked the 81th anniversary of the famine of 1932-33 in which millions died of hunger. (Photo by Gleb Garanich/Reuters)

A resident, lying shirtless, keeps warm as another approaches the blazing skeleton of Juanita's Fashions R Boutique after it was burned to the ground in Ferguson, Missouri early morning November 25, 2014. Gunshots rang out and buildings burned in a Midwestern suburb after a grand jury decided on Monday not to indict a white police officer over the fatal August shooting of an unarmed black teenager, sparking a fresh wave of racially tinged violence. At least a dozen buildings were set on fire in Ferguson, Missouri, most of them left destroyed. (Photo by Adrees Latif/Reuters)

A worker adjusts the valve of an oil pipe at West Qurna oilfield in Iraq's southern province of Basra in this November 28, 2010 file photo. (Photo by Atef Hassan/Reuters)

Indian Navy soldiers demonstrate their skills as they play drums during Navy Day celebrations in Mumbai December 4, 2014. The Indian Navy celebrates Navy Day to commemorate its offensive operation at Karachi Harbour during the India-Pakistan war in 1971. (Photo by Danish Siddiqui/Reuters)

Lazar and his sister Andjelka sit by a candle in their home in the eastern Serbian town of Majdanpek, December 4, 2014. Electricity workers in Serbia struggled through snow, ice and treacherous terrain on Thursday to restore electricity to an eastern town left shivering without power, heating or running water for a fourth day. (Photo by Marko Djurica/Reuters)

Smoke rises as a tyre burns near a truck after residents blocked Qalamoun international highway in Tripoli December 6, 2014. Families of Lebanese soldiers held by militants blocked roads in Beirut and highways between major cities on Saturday, pressing the government to do more to free them. More than two dozen members of the Lebanese security forces are being held by Sunni Islamists. One leading Sunni militant, Abu Ali al-Shishani, has pledged to attack Lebanese women and children and end talks to free the soldiers, after his wife was detained by authorities. (Photo by Reuters/Stringer)

Riot policemen dodge a petrol bomb during clashes in central Athens December 6, 2014. Greek police fired teargas to disperse protesters who hurled petrol bombs at police and set alight bank ATMs and garbage cans in central Athens on Saturday, during a march held on the anniversary of the 2008 police killing of a teenager. (Photo by Alkis Konstantinidis/Reuters)

Smoke rising from burning garbage blurs out greater adjutant storks resting at a dumping site on the outskirts of Gauhati, India, Friday, November 14 2014. This week's China-U.S. climate agreement between the world's top two polluters puts pressure on India, No. 3 on the list, to become more energy efficient and should encourage investment in renewable energy. China emits a quarter of the world's greenhouse gases, the United States 15 percent and India about 6 percent. (Photo by Anupam Nath/AP Photo)

A motorcycle burns after protesters threw molotov cocktails at riot police near the airport in Mexico City,Thursday, November 20, 2014. Mexico City is bracing for demonstrations as caravans of students and family members of 43 missing college students converged on the capital after several days crisscrossing the country. (Photo by Marco Ugarte/AP Photo)

Farmer Agustin Gomez Perez is engulfed in flames after he was set on fire to protest the imprisonment of his father who is charged with murder, stealing cattle and organized crime in Tuxtla Gutierrez, Mexico, December 5, 2014. (Photo by Jacob Garcia/Cuartoscuro)

A fireman walks near flames as a fire rages near a mosque on the edge of Lion's Head mountain near the city of Cape Town, South Africa, Tuesday, December 2, 2014. (Photo by Schalk van Zuydam/AP Photo)

The Soyuz-FG rocket booster with Soyuz TMA-15M space ship carrying a new crew to the International Space Station, ISS, blasts off at the Russian leased Baikonur cosmodrome, Kazakhstan, Monday, November 24, 2014. The Russian rocket carries United States astronaut Terry Virts, Russian cosmonaut Anton Shkaplerov and Italian astronaut Samantha Cristoforetti. (Photo by Aubrey Gemignani/AP Photo/NASA)

Workers burn tires to block one of the main entrances to the harbour in Antwerp, Belgium, during a first regional strike Monday, November 24, 2014. (Photo by Geert Vanden Wijngaert/AP Photo)