Giant pumpkins sit in the bed of a truck before the 40th Annual Safeway World Championship Pumpkin Weigh-Off on October 14, 2013 in Half Moon Bay, California. Gary Miller of Napa, California won the 40th Annual Safeway World Championship Pumpkin Weigh-Offgigantic pumpkin with a gigantic pumpkin that weighed in at 1,985 pounds. Miller took home a cash prize of $11,910, or $6.00 a pound. (Photo by Justin Sullivan/AFP Photo)

Performers wearing 19th century French military uniforms fire their weapons as they attack Allied forces during a reenactment of the Battle of the Nations, in a field in the village of Markkleeberg near Leipzig October 20, 2013. The east German city of Leipzig commemorated the 200th anniversary of the largest battle of the Napoleonic Wars on Sunday by reenacting the Battle of the Nations, with 6,000 military-historic association enthusiasts from all over Europe. The decisive encounter in which tens of thousands of soldiers were killed, took place from October 17-19, 1813, just outside of Leipzig. At the height of the hostilities Napoleon fielded more than 200,000 men against an Allied force of some 360,000 soldiers which included troops from Russia, Austria, Prussia and Sweden. (Photo by Fabrizio Bensch/Reuters)

A dancer poses with a new installation of art by British graffiti artist Banksy painted on the front door of the Hustler Club in New York, October 24, 2013. Known for his anti-authoritarian black-and-white stenciled images, which have sold at auction for upwards of $2 million, the British street artist is treating New Yorkers to a daily dose of spray-painted art – while eluding the police and incurring the wrath of New York Mayor Michael Bloomberg. (Photo by Eric Thayer/Reuters)

Survivors pass by two large boats after they were washed ashore by strong waves caused by Typhoon Haiyan in Tacloban city, Leyte province central Philippines on Sunday, November 10, 2013. Typhoon Haiyan, one of the strongest storms on record, slammed into six central Philippine islands on Friday leaving a wide swath of destruction and hundreds of people dead. (Photo by Aaron Favila/AP Photo)

A snail (Helix Aspersa) and a baby snail sit on a leave in a farm in Vienna June 12, 2013. Andreas Gugumuck owns Vienna's largest snail farm, exporting snails, snail-caviar and snail-liver all over the world. The gourmet snails are processed using old traditional cooking techniques and some are sold locally to Austrian gourmet restaurants. (Photo by Leonhard Foeger/Reuters)

Yves “Jetman”, Rossy made his first public performance in the United States on Tuesday during the afternoon air show at EAA AirVenture. As thousands of spectators leaned back and clicked cameras, Rossy jumped out of a helicopter with his 6-foot carbon fiber wing armed with four 45-pound-thrust JetCat engines strapped to his back. Photo: Jetman during a trial flight from Fond du Lac airport on Monday July 29, 2013. (Photo by Mike Shore/Courtesy of Breitling)

A leopard skin burns as Indian officials and activists burn wildlife contraband including tiger and leopard skins, and bones as part of a campaign to save the tiger in Mumbai, India, Tuesday, July 30, 2013. Despite conservation efforts, tiger numbers in India have declined due to rampant poaching of the cats for their valuable pelts and body parts that are highly prized in traditional Chinese medicine. (Photo by Rafiq Maqbool/AP Photo)

Water is seen on part of the glacial ice sheet that covers about 80 percent of the country is seen on July 17, 2013 on the Glacial Ice Sheet, Greenland. As the sea levels around the globe rise, researchers affilitated with the National Science Foundation and other organizations are studying the phenomena of the melting glaciers and its long-term ramifications. The warmer temperatures that have had an effect on the glaciers in Greenland also have altered the ways in which the local populace farm, fish, hunt and even travel across land. In recent years, sea level rise in places such as Miami Beach has led to increased street flooding and prompted leaders such as New York City Mayor Michael Bloomberg to propose a $19.5 billion plan to boost the citys capacity to withstand future extreme weather events by, among other things, devising mechanisms to withstand flooding. (Photo by Joe Raedle)