A man with a child walks towards the top of Vodno Mountain in Skopje, Macedonia, on January 9, 2014. (Photo by Boris Grdanoski/Associated Press)

Honda rider Paulo Goncalves of Portugal reacts as he sees his motorcycle burn during the fifth stage of the Dakar Rally between the cities of Chilecito and Tucuman in San Miguel de Tucuman, Argentina, on January 9, 2014. (Photo by Victor R. Caivano/Associated Press)

Honda rider Paulo Goncalves of Portugal weeps as he sees his motorcycle on fire during the fifth stage of the Dakar Rally between the cities of Chilecito and San Miguel de Tucuman, Argentina, Thursday, January 9, 2014. (Photo by Victor R. Caivano/AP Photo)

Chinese philanthropist Chen Guangbiao speaks during a news conference in New York, on January 7, 2014, announcing his underwriting for the full surgical regimen of mother and daughter, Hao Huijun and Chen Guo, who were disfigured after their 2001 self-immolation incident in Tiananmen Square. (Photo by Shannon Stapleton/Reuters)

Freezing water sprays from Niagara Falls coats the landscape at Niagara Falls State Park on Thursday, January 9, 2014 in Niagara Falls, N.Y. Niagara Falls hasn't frozen over, but it has become an icy spectacle, thanks to a blast of arctic wind and cold that blew around and froze the mist on surfaces and landscaping. Despite the urban legends, Niagara Falls doesn't freeze solid in the winter, tourism officials say. A section of the American Falls, one of three waterfalls that make up the natural attraction, has frozen. The Niagara River rapids and larger Horseshoe Falls continue to flow unimpeded. (Photo by James Neiss/AP Photo/The Niagara Gazette)

Men help a wounded boy who survived what activists say was an air strike by forces loyal to Syrian President Bashar al-Assad in the Duma neighborhood of Damascus, on January 7, 2014. (Photo by Bassam Khabieh/Reuters)

Ivory is displayed before being crushed during a public event in Dongguan, south China's Guangdong province on January 6, 2014. China crushed a pile of ivory reportedly weighing over six tonnes on January 6, in a landmark event aimed at shedding its image as a global hub for the illegal trade in African elephant tusks. (Photo by AFP Photo)

A man dressed as one of the Three Wise Men alights from a helicopter at San Lorenzo beach in Gijon January 5, 2014. Children in Spain traditionally receive their Christmas presents on the morning of January 6, delivered by the Three Wise Men. (Photo by Eloy Alonso/Reuters)

A men dressed as King Melchior meets children upon his arrival with men dressed as Kings Balthazar and Caspar, otherwise known as the three wise men or Kings, in Fuengirola, southern Spain, during an Epiphany street parade on January 5, 2014. The parades are held each year on the eve of the Feast of the Epiphany, which celebrates the gospel story of the coming of three wise men to bring gifts to the Christ child. (Photo by Jorge Guerrero/AFP Photo)

A miniature sculpture made by Chinese artist Li Qici, which imitates Chinese painter Xu Beihong's painting of eight running horses, is displayed on his finger, to celebrate the upcoming Chinese New Year in Yuyao, Zhejiang province. (Photo by Reuters/Stringer)

Irish Dancer Roisin McManus with Irish harpist Seana Davey in Dublin's Temple Bar at the official launch of the programme for Temple Bar Tradfest 2014, on January 7, 2014. Dublin's biggest and best festival of Irish Music and Culture will run for 5 days and nights from 22-26 January (Photo by Leon Farrell/Photocall Ireland)

Icicles hang from the wings of a crane-shaped fountain in a Tokyo park, as a massive cold front over Japan caused temperatures in the capital to plummet Friday to their lowest this winter. (Photo by Toru Hanai/Reuters)

A security guard chases away Buddhist monks from camp occupied by anti-government demonstrators in Phnom Penh on January 4, 2014. (Photo by Reuters/Stringer)

Rowers dressed in costume race along the Grand Canal for the “Befana” Regatta on January 6, 2014 in Venice, Italy. In Italian folklore, Befana is an old woman who delivers gifts to children throughout Italy on the feast of the Epiphany on January 6 in a similar way to Saint Nicholas or Santa Claus. (Photo by Marco Secchi/Getty Images)

Winter swimmers arrive in the boat for the traditional Three Kings swim in the Moldau river on January 6, 2014 in Prague, Czech Republic. About thirty swimmers took part in water temperatures of 3C. (Photo by Matej Divizna/Getty Images)

Men dressed as the Three Kings, Jasper, Melchior and Balthazar, ride on camels during the traditional Three Kings Procession on January 5, 2014 in Prague, Czech Republic. The procession is a re-enactment of the journey made by the Three Wise Men to visit the infant Jesus, which marks the end of the Christmas festivities in Prague. (Photo by Frantisek Vlcek/Getty Images/Isifa)

A supporter of Egypt's Muslim Brotherhood is arrested by Egyptian riot police after taking part in a small protest prior to the planned trial of deposed Egyptian President Mohammed Morsi at the Cairo Police Academy on January 8, 2014 in Cairo, Egypt. A number of pro-Morsi protesters were arrested at the Cairo Police Academy on Wednesday to demonstrate against the trial, which was was adjourned by Egyptian officials to February 1, 2014 after bad weather in Alexandria reportedly prevented a helicopter transporting Morsi to the trial from taking off. (Photo by Ed Giles/Getty Images)

Sumo Grand Champion Hakuho Sho (R) performs “Dohyo-iri” (ring purification ritual) during Dezuiri ceremony at the Meiji Shrine on January 8, 2014 in Tokyo, Japan. It is a custom for Sumo Grand Champions to celebrate the new year by performing the ritual at the Meiji Jingu Shrine. (Photo by Keith Tsuji/Getty Images)

Robby Gordon and Kellon Walch of the United States for Hummer Team Speed Energy compete during Day 5 of the 2014 Dakar Rally on January 9, 2014 in San Jose, Argentina. (Photo by Dean Mouhtaropoulos/Getty Images)

Children play around a man disguised as Batman at the Favela do Metro slum, area just near the Maracana stadium, in Rio de Janeiro, Brazil, on January 9, 2014. Families living in this shantytown within a stone's throw of Rio 's mythical Maracana stadium refuse to have their homes demolished as part of a project to renovate the district before the FIFA World Cup circus pitches camp in June. (Photo by Yasuyoshi Chiba/AFP Photo)

Children sit around a small bonfire on a cold and foggy morning on January 8, 2014 in New Delhi, India. Delhi saw the minimum temperature registering a dip from the 6.1 degrees Celsius recorded yesterday to settle at 4.4 degrees, which was three degrees below normal.Large swathes of north India bore the brunt of cold wave and icy winds as temperature in several parts of the region breached the sub zero level, disrupting rail, and road and air traffic. (Photo by Raj k Raj/Hindustan Times via Getty Images)

Jennifer Berry watches the sunset from a lifeguard chair at a beach on Lake Calhoun in Minneapolis, January 7, 2014. (Photo by Eric Miller/Reuters)

A woman wearing a niqab, a type of full veil, as she walks in a street in the center of Roubaix, northern France, on January 9, 2014. (Photo by Philippe Huguen/AFP Photo)

Water still cascades over Niagara Falls on January 10, 2014. The famous falls at the US-Canadian were the subject of a social media debate as to whether the falls froze completely or not during the recent cold snap which affected some 240 million people in the US and southern Canada. (Photo by Rick Warne/EFE)

Afghan young women drag containers of water on the outskirts of capital Kabul, Afghanistan, Thursday, January 9, 2014. Afghanistan experiences cold winters, and the slow pace of development and soaring cost of living in the country has made life difficult for the locals. (Photo by Massoud Hossaini/AP Photo)

“Airplane Parts”, a sculpture by Nancy Rubins made of scraps of old airplanes wired together into a massive junk tree, greets visitors to the Museum of Contemporary Art Monday, January 6, 2014 in downtown Los Angeles. The museum, which struggled for years for financial survival, has quadrupled its endowment to more than $100 million in the past nine months through a fundraising campaign that museum officials say won support from dozens of deep-pocketed Los Angeles arts patrons. MOCA, which planned to announce the accomplishment later Tuesday, January 7, 2013, said it ensures the long-term survival and independence of one of the country’s pre-eminent public repositories for contemporary art. (Photo by Nick Ut/AP Photo)

A man walks in the alley of a refugee camp in the suburbs of Islamabad, as temperatures dropped, on Wednesday, January 8, 2014. (Photo by B. K. Bangash/AP Photo)

Bangladeshi policemen kick a suspect, following an attack on a polling station, in Bogra, north of Dhaka, Bangladesh, Sunday, January 5, 2014. Police in Bangladesh fired at protesters and more than 100 polling stations were torched in Sunday's general elections marred by violence and a boycott by the opposition, which dismissed the polls as a farce. (Photo by AP Photo)

Security volunteers use sticks to fend off the crowd trying to enter a food and supplies distribution point, at a makeshift camp housing an estimated 100,000 displaced people, at Mpoko Airport, in Bangui, Central African Republic, Thursday, January 9, 2014. Food and aid distribution continued for the third day Thursday, though security volunteers faced challenges in restraining the hundreds of people trying to enter. Confusion and desperation after three weeks without aid drove many to try to force their way in, with or without valid tickets for that day's distribution. (Photo by Rebecca Blackwell/AP Photo)

People watch and photograph enormous waves as they break, on Porthcawl harbour, South Wales, Monday January 6, 2014. Residents along Britain's coasts are braced for more flooding as strong winds, rain and high tides lash the country. At least three people have died in a wave of stormy weather that has battered Britain since last week, including a man killed when his mobility scooter fell into a river in Oxford, southern England. (Photo by Ben Birchall/AP Photo/PA Wire)

A model performs dressed as a mermaid at the Sao Paulo's aquarium in Sao Paulo, Brazil, Wednesday, January 8, 2014. The presentation runs daily as a special event to attract visitors during the January school vacations. (Photo by Andre Penner/AP Photo)

Tim Green, of Sidney, Australia, jogs on top of the sculpture Wood Line by artist Andy Goldsworthy along an eucalyptus grove in The Presidio on Tuesday, January 7, 2014, in San Francisco. (Photo by Marcio Jose Sanchez/AP Photo)

The frozen mist from Niagara Falls coats the landscape around Prospect Point at Niagara Falls State Park, on January 7, 2014. (Photo by James Neiss/The Niagara Gazette)

The giant inflatable Rubber Duck installation by Dutch artist Florentijn Hofman floats on the Parramatta River, as part of the 2014 Sydney Festival, in Western Sydney January 10, 2014. The creation is five stories tall and five stories wide and has been seen floating in various cities around the world since 2007. (Photo by Jason Reed/Reuters)

KTM rider Alain Hermet of France races during the third stage of the Dakar Rally between the cities of San Rafael and San Juan, Argentina, Tuesday, January 7, 2014. (Photo by Victor R. Caivano/AP Photo)

Activists of Bangladesh Jamaat-e-Islami party and Bangladesh Nationalist Party (BNP) attack an activist (bottom) of the Awami League during a clash in Rajshahi January 5, 2014. Bangladesh's ruling Awami League was poised on Sunday to win a violence-plagued parliamentary election whose outcome was never in doubt after a boycott by the main opposition party. With fewer than half of the 300 seats being contested, voters cast ballots in modest numbers amid heavy security in polling that lacked the festivity typical of Bangladeshi elections and was shunned by international observers as flawed. (Photo by Reuters/Stringer)

Iraqi riot police officers grieve during the funeral procession for a fellow officer Methaq Jaber, who was killed during clashes between Iraqi army and al-Qaeda fighters in Anbar province, in Basra, Iraq's second-largest city, 550 kilometers (340 miles) southeast of Baghdad, Iraq, Sunday, January 5, 2014. Lt. Gen. Rasheed Fleih, a senior Iraqi military commander said it will take a few days to fully dislodge al-Qaida-linked fighters from Fallujah and Ramadi. (Photo by Nabil al-Jurani/AP Photo)

Participants show off their writing at a New Year calligraphy contest in Tokyo January 5, 2014. About 3,000 calligraphers, who qualified in regional competitions throughout Japan, took part in the contest to celebrate the New Year. (Photo by Yuya Shino/Reuters)

Family members grieve after identifying the body of a man killed in sectarian violence a day earlier, at the morgue in Bangui, Central African Republic, Sunday, January 5, 2014. (Photo by Rebecca Blackwell/AP Photo)

Emergency crews work near a passenger plane that crashed upon landing at the Aspen-Pitkin County Airport in Aspen, Colo., Sunday, January 5, 2014. (Photo by Leigh Vogel/AP Photo/The Aspen Times)

Nigerians airlifted from the Central African Republic, load trucks with their belongings as they prepare to travel to their states across Nigeria, at Nnamdi Azikiwe International Airport in Abuja January 6, 2014. The government has airlifted 1424 Nigerians from Bangui in the Central African Republic, according to the National Emergency Management Agency (NEMA). Violence in Central African Republic has uprooted nearly a million people, a fifth of the population, and is hampering aid efforts, particularly in the capital Bangui, the U.N. refugee agency (UNHCR) said on January 3, 2014. A flare-up in violence between Muslim fighters and Christian militias has displaced more than 200,000 people in the past few weeks alone, leaving a total of 935,000 homeless. (Photo by Afolabi Sotunde/Reuters)

Ice from the breath of Gail Davis forms around her face as she exercises by walking outside in Minneapolis, January 8, 2014. A deadly blast of arctic air shattered decades-old temperature records as it enveloped the eastern United States on Tuesday, snarling air, road and rail travel, driving energy prices higher and overwhelming shelters for homeless people. According to AccuWeather.com, the extreme cold won't last much longer. The frigid air and “polar vortex” that affected about 240 million people in the United States and southern Canada will depart during the second half of this week, and a far-reaching January thaw will begin, according to AccuWeather.com. (Photo by Eric Miller/Reuters)

President Barack Obama winks at Kiara Molina, 14, of Harlem, with the Harlem Children's Zone Promise Academy, as she introduces him as “my President”, at an event in the East Room of the White House in Washington, Thursday, January 9, 2014, where the president spoke about the Promise Zones Initiative. The Promise Zone Initiative is part of a plan to create a better bargain for the middle-class by partnering with local communities and businesses to create jobs, increase economic security, expand educational opportunities, increase access to quality, affordable housing and improve public safety. (Photo by Jacquelyn Martin/AP Photo)

The barred spiral galaxy M83, also known as the Southern Pinwheel, is seen in a NASA Hubble Space Telescope mosaic released January 9, 2014. The Hubble photograph captures thousands of star clusters, hundreds of thousands of individual stars, and “ghosts” of dead stars called supernova remnants. (Photo by Reuters/NASA)

The sun rises across the fields around Pershore, central England, Friday, January 10, 2014. After Britain has been pummeled with severe winter storms since late December, raising the water table and causing flooding in much of western, central and southern parts of the country, a brief respite is expected for the next two days. (Photo by David Davies/AP Photo/PA Wire)

A school teacher, who wished to stay unidentified, attempts to catch snowflakes while leading her students to a library from school in the Harlem neighborhood, located in the Manhattan borough of New York on January 10, 2014. (Photo by Adrees Latif/Reuters)

Youth play soccer in front of the palace of the late King Amanullah Khan, which was destroyed during the civil war in the early 1990s, in Kabul, Afghanistan, on January 8, 2014. (Photo by Massoud Hossaini/Associated Press)

A woman fishes for trout through a hole in a frozen river in Hwacheon, South Korea, on January 4, 2014. (Photo by Kim Hong-Ji/Reuters)

A Bangladeshi auto driver waits for passengers during an ongoing strike called by the main opposition Bangladesh Nationalist Party (BNP) in Dhaka, Bangladesh, Tuesday, January 7, 2014. On Monday, Bangladesh's Prime Minister Sheikh Hasina's ruling Awami League party won one of the most violent elections in the country's history, marred by street fighting, low turnout and a boycott by the opposition that made the results a foregone conclusion. The political gridlock plunges Bangladesh deeper into turmoil and economic stagnation, and could lead to more violence in a deeply impoverished country of 160 million. (Photo by A. M. Ahad/AP Photo)

A prisoner from the Pedrinhas prison is carried to receive medical help after he was injured during a fight between rival gangs inside the jail, in Sao Luiz, capital of Maranhao state, January 8, 2014. The recent posting on a major Brazilian news website of a video filmed last December 17 by Pedrinhas prisoners of the decapitated and tortured bodies of rival inmates inside the jail has highlighted some of the problems present in the country's prison system which houses nearly twice as many prisoners as its capacity, according to official statistics. (Photo by Douglas Cunha/Reuters/O Estado do Maranhão)

A woman bundled against the cold walks past a homeless man in McPherson Square as temperatures dipped into the single digits Fahrenheit and minus degrees with the wind chill on January 7, 2014 in Washington, DC. A blast of bone-chilling cold reaching lows not seen in two decades gripped the United States early Tuesday, snarling air travel, closing schools and prompting calls for people to stay inside. Superlatives of cold-talk abounded, even in midwestern states used to chest-high snow and bitter cold, as the National Weather Service said the deep freeze was making its way east. (Photo by Mladen Antonov/AFP Photo)

Egyptian riot police detain a man during clashes with supporters of ousted President Mohamed Morsi in the Nasr City district of Cairo, Egypt, on January 10, 2014. Hundreds of Islamists rallied in Egypt's capital and across the country calling for a boycott of an upcoming constitutional referendum and clashing with security forces, with a bystander being killed, an official said. (Photo by Ahmed Abd El Latif/ El Shorouk Newspaper)

Winter evening sunset over Cork famed Shandon steeple, on January 4, 2014. (Photo by Eddie O'Hare/PA Wire)

A supporter of the Muslim Brotherhood makes the Rabaa four-fingered gesture in front of a burning police vehicle in Cairo January 10, 2014. The four-fingered “Rabaa” sign is in reference to the police clearing of the Rabaa al-Adawiya protest camp on August 14 last year that killed hundreds of supporters of ousted President Mohamed Mursi who were camped out in Cairo. (Photo by Al Youm Al Saabi/Reuters)