(AP) - A sculpture is photographed on the roof of 204 5th Ave, Tuesday, March 9, 2010 in New York. (AP Photo/Mary Altaffer)

(AFP/DDP) - Spring and ice : A buttercup blossoms through the snow in a park the eastern German town of Ostrau. (AFP/DDP/Eckehard Schulz)

(Reuters) - Crystals hang from the ceiling during a preview of the Governors Ball prior to the 82nd Academy Awards in Hollywood, March 6, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: ENTERTAINMENT)

(AP) - A model wears an outfit by designers Unique for their Autumn/Winter 2010 collection at London Fashion Week in London, Saturday, Feb. 20, 2010. (AP Photo/Alastair Grant)

(AFP) - Reflective art : Art from Anish Kapoor is on display at the annual Armory Art Show in New York. (AFP/Emmanuel Dunand)

(AFP) - Vivid colors : Artwork from Korean artist Ko Sang-Woo is on display at the inaugural Korean Art Show in New York. (AFP/Emmanuel Dunand)

(Reuters) - A visitor looks at a metal sculpture by artist Zadok Ben-David during his "Human Nature" exhibition at the Tel Aviv Museum February 26, 2010. REUTERS/Amir Cohen (ISRAEL - Tags: SOCIETY)

(Reuters) - A full moon on the 15th day of the first lunar month in the Year of the Tiger is pictured over the cloudy skies of Great Falls, Virginia, February 28, 2010. REUTERS/Hyungwon Kang (UNITED STATES - Tags: ENVIRONMENT)

(AP) - Taiwanese launch lanterns to the sky to welcome the Chinese Lantern Festival in the north eastern village of Pingshi, Taiwan Sunday, Feb. 28, 2010. (AP Photo/Wally Santana)

(AFP) - Moscow stroll : Two Russian teenage girls walk between a snowbank and a billboard of a dandelion in Moscow. (AFP/Andrey Smirnov)

(AP) - A performer is illuminated in a sphere during the closing ceremony for the Vancouver 2010 Olympics in Vancouver, British Columbia, Sunday, Feb. 28, 2010. (AP Photo/Jae C. Hong)

(Reuters) - People smeared with coloured powder celebrate Holi, also known as the festival of colours, in the western Indian city of Ahmedabad March 1, 2010. This tradition heralds the beginning of spring and is celebrated all over India. REUTERS/Amit Dave (INDIA - Tags: SOCIETY)

(AP) - This image provided by NASA shows the International Space Station backdropped by Earth's horizon and the blackness of space, photographed by a crew member on space shuttle Endeavour after the station and shuttle began their post-undocking relative separation Feb. 19. 2010. (AP Photo/NASA)

(Reuters) - A swan swims at the river mouth between the River Drim and Ohrid Lake in the city of Struga February 25, 2010. The water level of Ohrid Lake is 20cm (7.9 inches) above the critical point, local media reported. REUTERS/Ognen Teofilovski (MACEDONIA - Tags: ENVIRONMENT ANIMALS IMAGES OF THE DAY)

(AP) - South Korea's Kim Yu-Na performs her short program during the women's figure skating competition at the Vancouver 2010 Olympics in Vancouver, British Columbia, Tuesday, Feb. 23, 2010. (AP Photo/Mark Baker)

(AFP) - Snowy stroll : People stroll through Central Park in New York, as the the region is hit with another storm which could drop as much as a foot of snow in New York City and parts of the metropolitan region. (AFP/Timothy A. Clary)

(Reuters) - An ice sculpture of the Olympic rings to mark the opening of the Winter Games in Vancouver, stands against the silhouette of Nelson's Column in Trafalgar Square in London February 13, 2010. REUTERS/Luke MacGregor (BRITAIN - Tags: SPORT OLYMPICS SOCIETY)

(AFP) - Frou frou : A model presents a creation by Pakistani designer Nomi Ansari on the last day of Pakistan Fashion Design Council Sunsilk Fashion Week in Lahore. (AFP/Arif Ali)

(AFP/DDP) - Fan of Japan : A Japanese fan cheers before the start of the Men's 10000m Speedskating race at the Richmond Olympic Oval, in Richmond during the XXI Winter Olympics. (AFP/DDP/David Hecker)

(AFP) - Color wheel : A model presents a creation by designer Ana Locking during the Madrid Cibeles Fashion week in Madrid. (AFP/Dominique Faget)

(AFP) - Expo construction : A Chinese worker goes about his chores at the construction of the Seed Cathedral, the centerpiece of the United Kingdom Pavilion at the Shanghai World Expo site in Shanghai. (AFP/Stringer)

(Reuters) - One-month-old South China tiger cub Niuniu is seen at a zoo in Luoyang, Henan province, February 20, 2010. The Chinese New Year began on February 14th and according to the Lunar calendar, it is the Year of the Tiger. REUTERS/China Daily (CHINA - Tags: ANIMALS SOCIETY) CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA

(Reuters) - A flight of geese passes the Olympic rings, afloat on a barge in Vancouver's harbour, at dawn as the Vancouver 2010 Winter Olympics continues February 20, 2010. REUTERS/Chris Helgren (CANADA - Tags: ANIMALS SPORT OLYMPICS IMAGES OF THE DAY)

(AFP) - Fighting El Nino : A couple tries to cool off from the heat caused by El Nino with water overflowing from a defunct but still watery reservoir called the Wawa dam in Montalban in Rizal, east of Manila. (AFP/Noel Celis)

(Reuters) - People release sky lanterns to celebrate the traditional Chinese Sky Lantern Festival in Jingtong, Taipei County, February 20, 2010. Believers gathered to release sky lanterns as a form of prayer for good luck and blessings. The tradition of releasing lanterns began during the Ching Dynasty when bands of outlaws frequently raided villages, forcing local residents to seek refuge in the mountains. The lanterns were signals used by the village watchmen to inform the refugees that their houses were safe again. REUTERS/Pichi Chuang (TAIWAN - Tags: SOCIETY)

(Reuters) - An Indian tiger swims at the Bangkok Zoo, Thailand in this undated handout image. Demand by a newly rich Asian population for such goods as tiger bone tonic wine and tigers' skin, meat and teeth is putting pressure on these endangered creatures worldwide, wildlife advocates reported on February 10, 2010. REUTERS/Martin Harvey/WWF-Canon/Handout (ENVIRONMENT ANIMALS HEALTH) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS

(AFP) - DNA gallery : A mirror is displayed at the "DNA" art gallery during the installation of the ARCO International Contemporary Art Fair in Madrid. (AFP/Pierre-Philippe Marcou)

(AFP) - Short-track practice : Members of the US short-track team practice during a training session at the Pacific Coliseum in Vancouver at the 2010 Winter Olympics. (AFP/Dimitar Dilkoff)

(AFP/DDP) - Moment of confetti : A reveller throws confetti during a carnival parade in the eastern German city of Cottbus. (AFP/DDP/Michael Urban)

(Reuters) - Fireworks light the sky over BC Place stadium during the opening ceremony of the Vancouver Winter Olympic Games in Vancouver, British Columbia February 12, 2010. REUTERS/Chris Helgren (CANADA - Tags: SPORT OLYMPICS CITYSCAPE)

(Reuters) - Moldova's Bogdan Macovei speeds down the track during a training run for the men's singles luge in preparation for the Vancouver 2010 Winter Olympics in Whistler, British Columbia, February 10, 2010. REUTERS/Pawel Kopczynski (CANADA)

(AFP) - Botero Park : A person touches a sculpture by Colombian artist Fernando Botero at the Botero Park in Medellin, Antioquia department, Colombia. (AFP/Raul Arboleda)

(Reuters) - A view of a telescope, operated by the ESO (European Organisation for Astronomical Research in the Southern Hemisphere), in Chile February 9, 2010. The Paranal Observatory is the most modern of the world, located in the Atacama desert some 1200 km (745 miles) north of Santiago and 2600 metres above sea level. REUTERS/Victor Ruiz Caballero (CHILE - Tags: SCI TECH IMAGES OF THE DAY)