Actors Aubrey Plaza and Matthew Gray Gubler pose for a portrait during the 2014 Sundance Film Festival at the Getty Images Portrait Studio at the Village At The Lift on January 19, 2014 in Park City, Utah. (Photo by Larry Busacca/AFP Photo)

Vehicles clog a highway during a hazy day in Beijing, China, Wednesday, February 26, 2014. Beijing remained cloaked in hazardous white pollution hiding much of its skyline Wednesday, despite the announced closures or production cuts at 147 of the city's industrial plants. (Photo by Ng Han Guan/AP Photo)

A man is seen wrapped with pythons, some which include the Albino Burmese Python, as part of a show celebrating the coming Year of the Snake in the Chinese calendar, while spectators look on, in Malabon city, north of Manila, Philippines, December 28, 2012. (Photo by Romeo Ranoco/Reuters)

Saudi youths demonstrate a stunt known as “sidewall skiing” (driving on two wheels) in the northern city of Hail, in Saudi Arabia March 30, 2013. Performing stunts such as sidewall skiing and drifts is a popular hobby amongst Saudi youths. (Photo by Mohamed Al Hwaity/Reuters)

Tourists play at a beach covered by a thick layer of green algae on July 3, 2013 in Qingdao, China. A large quantity of non-poisonous green seaweed, enteromorpha prolifera, hit the Qingdao coast in recent days. More than 20,000 tons of such seaweed has been removed from the city's beaches. (Photo by China Foto Press)

Passengers climb to board an overcrowded train at a railway station in Dhaka August 8, 2013. Millions of residents in Dhaka are travelling home from the capital city to celebrate the Muslim Eid al-Fitr holiday, which marks the end of the Muslim holy fasting month of Ramadan. (Photo by Andrew Biraj/Reuters)

Denver Broncos cheerleaders during the third quarter. The Denver Broncos played the Kansas City Chiefs at Sports Authority Field at Mile High in Denver, Colo. on September 14, 2014. (Photo by Aaron Ontiveroz/The Denver Post via Getty Images)

People protest for greater action against climate change during the People's Climate March on September 21, 2014 in New York City. The march, which calls for drastic political and economic changes to slow global warming, has been organized by a coalition of unions, activists, politicians and scientists. (Photo by Andrew Burton/Getty Images)