Birds fly past as a man rows his boat in River Yamuna in the morning in New Delhi, India, Tuesday, December 9, 2014. Clogged with garbage, sewage and industrial runoff, the Yamuna, which is one of India’s major rivers, is also one of the most polluted. (Photo by Benat Armangue/AP Photo)

Hannah Bagshawe and Eddie Redmayne attend the UK Premiere of “The Theory Of Everything” at Odeon Leicester Square on December 9, 2014 in London, England. (Photo by Tim P. Whitby/Getty Images)

Afghan security force personnel look at a damaged civilian vehicle, being lifted to be removed from the site of a suicide attack in Kabul, Afghanistan Thursday, December 11, 2014. Police in Afghanistan's capital say a suicide bomber has killed six Afghan soldiers and wounded another 10 in an attack on a military minibus. (Photo by Massoud Hossaini/AP Photo)

Frederic Cesbron, right and Maxim Durand, walk on the street outside the Hyatt Regency O'Hare hotel on Sunday, December 7, 2014, in Rosemont, Ill. Thousands of people were evacuated after a chlorine gas leak at the hotel hosting the 2014 Midwest FurFest convention, where attendees dress as animals to celebrate art, literature and performance, in suburban Rosemont early Sunday morning. Investigators believe the leak at the hotel in Rosemont was caused intentionally and are treating it as a criminal matter. (Photo by Nam Y. Huh/AP Photo)

Four-year-old Manu works at a shop selling firewood as his one-and-half year old sister Tanu sleeps on the ground in Gauhati, India, Wednesday, December 10, 2014. Manu’s mother works at the shop earning US$20 a month, and Manu is paid Rupees 30 (US$ 0.4) a day whenever he helps out. Malala Yousafzai of Pakistan and Kailash Satyarthi of India on Wednesday received the Nobel Peace Prize for risking their lives to fight for working to protect children from slavery, extremism and child labor at great risk to their own lives. (Photo by Anupam Nath/AP Photo)

In this Friday, December 5, 2014 photo, dogs cling to Iranian volunteer Hengameh Samifar as she tries to work at the Vafa Animal Shelter in the city of Hashtgerd 43 miles (73 kilometers) west of the capital Tehran, Iran. More than 500 dogs find care and affection at the Vafa Animal Shelter, which was established through an endowment in 2004 and is the country's only licensed animal refuge. (Photo by Vahid Salemi/AP Photo)

In this Friday, December 5, 2014 photo, Homa Rashid, a lawyer and volunteer at the Vafa Animal Shelter, rests with a dog, in the city of Hashtgerd 43 miles (73 kilometers) west of the capital Tehran, Iran. (Photo by Vahid Salemi/AP Photo)

Earth moving equipment is buried by debris in Camarillo Springs, Calif., about 50 miles northwest of Los Angeles on Friday, December 12, 2014. The homeowners association hired a construction crew to move debris, but the muck buried one of the earth movers as a powerful storm moved through the area. (Photo by Raquel Dillion/AP Photo)

A group of houses are pictured after boulder-strewn rivers of mud swept down hillsides during a winter storm, in Camarillo Springs, California December 12, 2014. A Pacific storm pounded Southern California with heavy rain and high winds on Friday, triggering flash floods and mudslides that prompted the evacuation of hundreds of homes, damaged dozens of others and disrupted passenger rail service along the coast. One of the areas hardest hit on Friday was the community of Camarillo Springs, north of Los Angeles. (Photo by Mario Anzuoni/Reuters)

A dancer walks before a performance at the Climate Change Conference in Lima, Peru, Tuesday, December 9, 2014. Delegates from more than 190 countries are meeting in Lima, to work on drafts for a global climate deal that is supposed to be adopted next year in Paris. (Photo by Juan Karita/AP Photo)

Sydneysiders run along the Darling Harbour boardwalk during the 2014 Variety Santa Fun Run on December 7, 2014 in Sydney, Australia. Variety is the children's charity committed to help Australian children who are sick, disadvantaged or have special needs. (Photo by Lisa Maree Williams/Getty Images)

Barricades are set up by pro-democracy protester on a main road at the occupied area outside government headquarters in Hong Kong Tuesday, December 9, 2014. Hong Kong authorities and activists are set for one last showdown after the publication Tuesday of a court order authorizing the removal of barricades and tents blocking the Asian financial hub's streets for more than two months. (Photo by Kin Cheung/AP Photo)

Men drink beer during a local annual beer festival in Hanoi on December 7, 2014. Thousands of local beer lovers visited the event where they could enjoy for free the popular “Bia Hoi”, a local cheap draft beer that is sold on streets of Vietnam's big cities. Some published surveys said Vietnam is top beer-drinking nation among Southeast Asian nations. (Photo by Hoang Dinh Nam/AFP Photo)

The British Breitling Wingwalkers, Danielle Hughes and Emily Guilding, soar above the Palm Jumeirah in Dubai at 1,500 feet (460 meters) in excess of 100mp/h, ahead of their Dubai debut performance at the 2014 UIM Skydive Dubai XCAT World Powerboating Series, on Saturday, 13th December 2014. The British team is the only aerobatic formation display team who employ full time wingwalkers and fly their two Breitling-liveried 1930's Boeing Stearman bi-planes at Air Shows and major sporting events around the world. (Photo by Katsuhiko Tokunaga/Breitling via AP Images)

The British Breitling Wingwalkers, Danielle Hughes and Emily Guilding, fly past the Burj Khalifa, the world's tallest man-made structure, in Dubai at 2,000 feet (610 meters) in excess of 100mp/h, ahead of their Dubai debut performance at the 2014 UIM Skydive Dubai XCAT World Powerboating Series, on Saturday, 13th December 2014. (Photo by Katsuhiko Tokunaga/Breitling via AP Images)

Eurostar celebrated the opening of ticket sales for its new year-round service to Lyon and the South of France by converting one of its carriages into a Provencal lavender field at St Pancras Station on December 11, 2014 in London, England. (Photo by Ian Gavan/Getty Images for Eurostar)

A car drives along Seaview road as waves crash over on December 9, 2014 in Saltcoats, Scotland. The Met Office has issued a yellow weather warning for the next forty eight hours as high winds start to build ahead of an Atlantic storm due tomorrow. (Photo by Jeff J. Mitchell/Getty Images)

Bollywood actress Deepika Padukone, left, shares a lighter moment with Roger Federer during a fun match in the sidelines of the International Premier Tennis League, in New Delhi, India, Monday, December 8, 2014. (Photo by Manish Swarup/AP Photo)

A photo taken on December 7, 2014 from the Savur Mogila monument to Red Army soldiers fallen during World War II near the eastern Ukrainian city of Snizhnee after a ceremony in memory of the pro-Russian rebels who have died during fighting against the Ukranian Army. (Photo by Eric Feferberg/AFP Photo)

This Wednesday, December 10, 2014 photo shows the Sphero robotic ball, in Decatur, Ga. The Sphero is controlled with an app on a smartphone and can roll, glow, spin, shake and dance, all under the direction of the user. (Photo by Ron Harris/AP Photo)

Swiss tightrope artist Freddy Nock walks on a rope towards the Schilthorn in the Bernaise alps, Switzerland, December 10, 2014. (Photo by Peter Klaunzer/EPA)

Japanese athletes with physical disabilities display creations of “Theater Products” designed by designers Akira Takeuchi and Miwa Fujiwara during a fashion show at the National Museum of Emerging Science and Innovation in Tokyo on December 7, 2014. Fifteen athletes including Paralympians showed off the latest outfits at an event as a part of the Disabled Week. (Photo by Yoshikazu Tsuno/AFP Photo)

This photo released Tuesday, December 9, 2014, by the Salvation Army in Detroit, shows a 1980 South African gold Krugerrand, worth an estimated $1,200, that an anonymous donor recently dropped in a red kettle outside a Kroger store in the Detroit suburb of St. Clair Shores, Mich. Salvation Army spokeswoman Andrea Kenski said the coin is identical to one dropped at the same location one year ago. (Photo by Salvation Army/AP Photo)

High wire performer Falko Traber poses as the “Flying Santa” on his motorcycle shaped like a reindeer sleigh above the Christmas Market in Karlsruhe, Germany, Thursday, Dec. 11, 2014. (Photo by Ronald Wittek/AP Photo/DPA)

Thick and hot smoke spews from Mount Sinabung in Karo on December 9, 2014. Indonesian local government relocated residents who lives in danger zones around Mount Sinabung following deadly eruptions in early February 2014 that killed about 17 people. (Photo by Sutanta Aditya/AFP Photo)

A man carries fuel and rice on his motorbike as he drives through central Jakarta, Indonesia, Thursday, December 11, 2014. There are an estimated 70 million motorbikes or nearly 80 percent of all registered vehicles on the roads of Indonesia, with that number growing by approximately ten percent annually. (Photo by Mark Baker/AP Photo)

Children sit on a fallen coconut tree in Borongan, in the eastern Samar province, in central Philippines, a day after typhoon Hagupit hit the province, on December 8, 2014. Millions of people in the Philippine capital hunkered down as a major storm churned towards the megacity, after killing at least 21 people and destroying thousands of homes on remote islands. Soldiers and aid workers rushed to reach devastated coastal villages on Samar island, where Typhoon Hagupit crashed in from the Pacific Ocean at the weekend with winds of 210 kilometres (130 miles) an hour. (Photo by Vincent Go/AFP Photo)

Jennifer Nettles behind the scenes of her photo shoot for her Broadway debut as Roxie Hart In “Chicago” on December 10, 2014 in New York City. (Photo by Jenny Anderson/Getty Images)

Jennifer Nettles behind the scenes of her photo shoot for her Broadway debut as Roxie Hart In “Chicago” on December 10, 2014 in New York City. (Photo by Jenny Anderson/Getty Images)

Jennifer Nettles behind the scenes of her photo shoot for her Broadway debut as Roxie Hart In “Chicago” on December 10, 2014 in New York City. (Photo by Jenny Anderson/Getty Images)

Muslim women pose for selfie in front of Christmas decorations at a shopping mall in Malaysia Wednesday, December 10, 2014. Shopping malls in Muslim-dominated Malaysia have been decorated with Christmas trees, lights and Santa Claus to attract year-end shoppers. (Photo by Vincent Thian/AP Photo)

This NASA photo obtained December 10, 2014 shows from the International Space Station, a photo taken by Expedition 42 Commander Barry Wilmore of the Great Lakes and central US on December 7, 2014. This week on the station, the Expedition 42 crew has been busy with medical science and spacesuit work while preparing for the arrival of SpaceX's Dragon commercial cargo craft, scheduled to launch on December 16, 2014 on a two day trip to the station before it is captured by the Canadarm2 and berthed to the Harmony node. (Photo by Barry Wilmore/AFP Photo/NASA)

A Pakistani Muslim devotee, or Malang, dances to celebrate the three-day annual congregation of famous saint Data Ganjbaksh at a shrine in Lahore, Pakistan, Thursday, December 11, 2014. Thousands of people traveled from all over Pakistan to attend the celebrations. (Photo by K. M. Chaudary/AP Photo)

Competitors react as they run during the “Jamatlon Winter Edition” event in Hrastnik on December 6, 2014. Jamatlon (“Jama” meaning cave combined with “tlon” to add a marathon ending to the word) is a 5kms long run containing obstacles related to mining and it takes place in a mine shaft connecting the two Slovenian mining towns of Trbovlje and Hrastnik. (Photo by Jure Makovec/AFP Photo)

A handout photo taken and released by Simon Foster Photography Ltd shows Dutch actress and adventurer Manon “Tractor Girl” Ossevoort embracing a metallic sphere at the Ceremonial South Pole after arriving at the South Pole from Europe through Africa and across Antarctica by tractor on December 9, 2014. (Photo by Simon Foster/AFP Photo)

A participant takes part in the first Belarussian eyelash extension Beauty Eyes championship in Minsk on December 7, 2014. (Photo by Sergei Gapon/AFP Photo)

Italian former legend of free diving, Umberto Pelizzari (L) gives a free diving course at the “Y-40 The Deep Joy” swimming pool on December 8, 2014 in Montegrotto Terme, northeastern Italy. The swimming pool is built over thermal sources bringing after cooling down a water at 32-34 degrees Celsius. Y-40, with its depth of 42mt, is officially included in the Guinness World Record as the deepest pool in the world for free and scuba diving. (Photo by Olivier Morin/AFP Photo)

Actress Sarah Hyland attends Delta Air Lines' Annual Holiday In The Hangar Celebration at LAX Airport on December 10, 2014 in Los Angeles, California. (Photo by Angela Weiss/Getty Images for Delta Air Lines)

Residents take photos of snow-covered trees in Jilin, in northeast China's Jilin province on December 9, 2014. (Photo by AFP Photo)