The Hong Kong team, including Pang Yao, Yang Qianyu, Leung Bo Yee and Meng Zhao Juan, competes during the women's team pursuit qualifying race at the UCI Track Cycling World Cup in Saint-Quentin-en-Yvelines, near Paris, February 18, 2015. (Photo by Charles Platiau/Reuters)

The legs of third placed German team members Rene Enders (L) and Robert Forstemann (R) are pictured during the podium ceremony in the men's team sprint race at the UCI Track Cycling World Cup in Saint-Quentin-en-Yvelines, near Paris, February 18, 2015. (Photo by Charles Platiau/Reuters)

Francois Pervis of France is assisted by his coach Franck Durivaux (R) before starting in the men's keirin track cycling event at the UCI Track Cycling World Cup in Saint-Quentin-en-Yvelines, near Paris, February 19, 2015. Pervis won the event. (Photo by Charles Platiau/Reuters)

Referees hold starting pistols during the UCI Track Cycling World Cup at the velodrome of Saint-Quentin-en-Yvelines, near Paris, February 20, 2015. (Photo by Charles Platiau/Reuters)

Francois Pervis of France reacts after winning the Men's 1km Time Trial final at the UCI Track Cycling World Cup in Saint-Quentin-en-Yvelines, near Paris, February 20, 2015. (Photo by Charles Platiau/Reuters)

Somali security forces inspect civilians on the streets during an operation against suspected militant Islamist group al Shabaab following renewed killing of government officers and workers in the capital Mogadishu, February 18, 2015. Al Shabaab militants were pushed out of Mogadishu in 2011, but the group has vowed to continue its battle against a Western-backed government which also enjoys broad pan-African support. (Photo by Feisal Omar/Reuters)

A woman and her daughter sit after receiving crosses of ashes on their foreheads during the traditional Ash Wednesday service at the Metropolitan Cathedral in Managua February 18, 2015. (Photo by Oswaldo Rivas/Reuters)

An airplane flies over a drone during the Polar Bear Plunge on Coney Island in the Brooklyn borough of New York in this file photo taken January 1, 2015. U.S. farmers hoping to use drones to locate lost livestock or monitor trouble spots in their fields were disappointed by what they say are overly restrictive commercial drone rules proposed February 15, 2015, by the Federal Aviation Administration. (Photo by Carlo Allegri/Reuters)

A girl jumps over the fire during the “The Burial of the Sardine” funeral procession, which marks the end of carnival festivities, in Madrid February 18, 2015. “Mourners” carry a coffin with a mock sardine through the streets to celebrate the countdown to Lent. Spanish painter Francisco de Goya's painting “El entierro de la sardina” (The Burial of the Sardine) was inspired by this tradition, which started in Madrid in the 18th century, around the time of Spanish King Carlos III. (Photo by Juan Medina/Reuters)

Dena D'Angelo, a scenic artist, prepares to spray Oscar statues in a parking lot near the Dolby Theatre in Hollywood, ahead of the Academy Awards in Los Angeles, California February 18, 2015. The 87th Academy Awards ceremony, which honors the best films of 2014, will take place Sunday at the Dolby Theatre in Hollywood. (Photo by Adrees Latif/Reuters)

A man, dressed up as the devil, performs during the “Diablos y Congos” (Devils and the Africans) festival in Nombre de Dios, Colon Province, Panama February 18, 2015. The festival symbolises the historic struggle of African slaves against their Spanish masters. (Photo by Carlos Jasso/Reuters)

A man, dressed up as the devil, performs during the “Diablos y Congos” (Devils and the Africans) festival in Nombre de Dios, Colon Province, February 18, 2015. (Photo by Carlos Jasso/Reuters)

A canoeist negotiates a rapid during the Dusi Canoe Marathon in Pietermaritzburg, South Africa February 19, 2015. The 120-kilometre event is held over three days from Pietermaritzburg to Durban. (Photo by Rogan Ward/Reuters)

Maria Alyokhina (R) and Nadezhda Tolokonnikova, members of the punk protest band p*ssy Riot, attend an interview with Reuters in Moscow February 19, 2015. Russian punk rock group p*ssy Riot released their first song in English on Wednesday, a musical tribute to Eric Garner, the unarmed black man whose death in a police chokehold last summer sparked wide protests against police violence. (Photo by Maxim Shemetov/Reuters)

Maria Alyokhina (R) and Nadezhda Tolokonnikova, members of the punk protest band p*ssy Riot, attend an interview with Reuters in Moscow February 19, 2015. (Photo by Maxim Shemetov/Reuters)

Houthi fighters ride a patrol vehicle outside a hotel hosting U.N.-sponsored negotiations on a political settlement for Yemen's crisis in Sanaa February 19, 2015. Yemen is slipping further into chaos as the Houthis, an Iranian-backed Shi'ite Muslim militia from the north, consolidate their grip on power after seizing the capital in September and sidelining the central government. (Photo by Khaled Abdullah/Reuters)

People bundled up from the cold walk in the Brooklyn borough of New York February 19, 2015. Bone-chilling cold in the U.S. Midwest shattered records in Chicago on Thursday, closing schools and starting its trudge eastward to an already frozen Boston and New York. (Photo by Shannon Stapleton/Reuters)

A woman is bundled up against the cold weather in downtown Chicago, Illinois, February 19, 2015. (Photo by Jim Young/Reuters)

A girl plays with a street performer dressed as the British television series character Mr. Bean at Madrid's Puerta del Sol square February 19, 2015. (Photo by Susana Vera/Reuters)

Lawmakers from the main opposition Republican People's Party (CHP) and ruling AK Party (R) scuffle during a debate on a legislation to boost police powers, at the Turkish Parliament in Ankara late February 19, 2015. The legislation, which would bolster the powers of the authorities to control protests, has been widely condemned by the opposition, who accuse the AKP of trying to create a police state in the NATO member nation. (Photo by Reuters/Stringer)

A boy impersonating a living statue performs for tips in downtown Lima, February 19, 2015. (Photo by Mariana Bazo/Reuters)

A woman sunbathes at Sunset beach in Kahuku at Oahu's northshore, Hawaii in this November 13, 2011 file photo. Scientists have found that the skin damage caused by UV rays does not stop once you get out of the sun. (Photo by Yuriko Nakao/Reuters)

Snow geese and a float plane pass Cypress Mountain prior to the Vancouver 2010 Winter Olympic Games in a February 9, 2010 file photo. As eastern Canada and the United States endure record snowfalls and frigid temperatures, Western Canada is struggling with the opposite problem: an unseasonable lack of snow that is forcing some ski hills to shut early. Hemlock Mountain, two hours east of Vancouver, cancelled its 2014/15 season at the start of February due to “warmer than average temperatures, heavy rain and negligible snow”. Vancouver Island's Mount Cain has also closed while nearby Mount Washington and Cypress Mountain on Vancouver's North Shore are on standby, awaiting more snow. (Photo by Chris Helgren/Reuters)

Japanese college graduates listen to speeches during a job-hunting rally at an outdoor theatre in Tokyo February 20, 2015. Some 1500 graduates from Japanese vocational schools attended a pep rally designed to boost their morale as they break into the job market this year. (Photo by Thomas Peter/Reuters)

A Japanese college graduate publicly promises that she will do her best in trying to find work during a job-hunting rally at an outdoor theatre in Tokyo February 20, 2015. (Photo by Thomas Peter/Reuters)

Japanese college graduates shout in a display of self-encouragement during a job-hunting rally at an outdoor theatre in Tokyo February 20, 2015. (Photo by Thomas Peter/Reuters)

Vladimir Korabelnikov, head of a local orphanage and a member of local winter swimming club, swims in the waters of the Yenisei River, with the air temperature at about minus 20 degrees Celsius (minus 4 degrees Fahrenheit), in the town of Divnogorsk near Krasnoyarsk, Siberia, February 20, 2015. (Photo by Ilya Naymushin/Reuters)

Photos of those killed in anti-government protests in 2014 are on display during a commemorating ceremony near Independence Square in Kiev, February 20, 2015. Ukraine will mark the first anniversary of the ousting of the pro-Moscow President Viktor Yanukovich next weekend, honouring the memory of the 100 or so civilians killed in protests against him. (Photo by Valentyn Ogirenko/Reuters)

Leonado's Da Vinci picture used as part an advertisement for the Expo 2015, in downtown Milan, February 20, 2015. This year's Expo exposition has the theme “Feeding the Planet, Energy for Life”, and will run from May 1 to October 31, 2015. (Photo by Stefano Rellandini/Reuters)

Snow covered citrus fruits are displayed for sale in Jbaa village, south Lebanon February 20, 2015. (Photo by Ali Hashisho/Reuters)

A man rides in a car by a statue of Lenin, painted in the colors of Ukraine's national flag, in Velyka Novosilka, Ukraine, Thursday, February 19, 2015, near the border between Russia backed rebels and Ukrainian held territories, on the Ukrainian side. A Ukrainian military spokesman says more than 90 percent of its forces have been withdrawn from the fiercely contested town of Debaltseve and its surroundings, but left unclear when the retreat might be completed. (Photo by Vadim Ghirda/AP Photo)

In this February 19, 2015 photo, police dogs bite the arm of a police officer during an anti-terrorism drill for the upcoming Tokyo Marathon, at the Tokyo Metropolitan Police headquarters in Tokyo. Organizers of the Feb. 22 marathon have promised increased security following the slaying of two Japanese hostages by the Islamic State group. (Photo by AP Photo/Kyodo News)

Residents search for reusable items after a fire hit a residential area at Merville park in Pasay city, metro Manila February 16, 2015. At least four people were killed after a fire razed an estimated 300 houses made of light materials, local media reported. (Photo by Romeo Ranoco/Reuters)

Rescue service men and firemen work at a derailed train a the accident site in Rafz, canton Zurich, Switzerland, on Friday, February 20, 2015. The collision of two passenger trains in the early morning caused five injured, one of them severe, police said. (Photo by Ennio Leanza/AP Photo/Keystone)

Rescue workers stand next to a derailed train after two trains collided near Rafz around 30 km (18 miles) from Zurich February 20, 2015. Two passenger trains collided in Switzerland on Friday, causing five injuries and disrupting commuter routes into Zurich, police and rail operator SBB said. (Photo by Arnd Wiegmann/Reuters)

Two revelers dressed as toy soldiers gesture toward a police officer in a patrol car during the traditional carnival parade in Wuerzburg, Germany, 15 February 2015. Under the motto “Carnival Parade is cool” about 160 groups with over 3,000 members took part in one of the biggest carnival parades in southern Germany. (Photo by Daniel Karmann/EPA)

“Shut Down Manus” is written in the sky, funded by asylum seeker activists over Sydney Harbour on February 17, 2015 in Sydney, Australia. The sky message was commissioned by activists on the one year anniversary of the death of Iranian asylum seeker, Reza Berati during a riot at the Manus Island Regional Processing Centre. (Photo by Ryan Pierse/Getty Images)

Indonesian Chinese release pigeaon as part of pray during Chinese New Year celebrations at Dharma Bhakti Temple on February 19, 2015 in Jakarta, Indonesia. The Chinese Lunar New Year of the Sheep also known as the Spring Festival, is based on the Lunisolar Chinese calendar, and is celebrated from the first day of the first month of the lunar year and ends with a Lantern Festival on the Fifteenth day. Chinese New Year is the most important festival in the Chinese calendar and is widely celebrated across Asia. (Photo by Oscar Siagian/Getty Images)

Wind turbines spin at a wind farm on February 19, 2015 near Zaragoza, Spain. France and Spain inaugurate the newly combined electrecity project on February 20 which will connect both countries after thirty years of demands by the Spanish Goverment, allowing an increase of opportunities for operations with renewable energies. This project has been funded to the amount of 225 million euros by the European Energy Program for Recovery. The new interconnection line will double its total commercial exchange capacity from 1,400 megawatts to 2,800, reaching the 6% of the current maximum demand in Spain instead of the 10% recommended by the UE. (Photo by David Ramos/Getty Images)