Mike Bouse of Henderson, Nevada, shades himself with an umbrella as he floats in the waters along Boulder Beach at Lake Mead, on June 29, 2013 near Boulder City, Nevada. Bouse and his wife planned to spend most of the day in and out of the water to escape the heat in the Las Vegas area where the daytime high was expected to reach 117 degrees, the city's all-time high. #

Surfers ride waves at Shonan beach in Fujisawa city, west of Tokyo, on July 15, 2013. A heat wave continued throughout Japan as temperature sores to 35 degrees Celsius (95 degrees Fahrenheit) in the Tokyo metropolitan area. #

A young boy cools off in the water from a playground sprinkler in Brooklyn, New York, on July 15, 2013. Temperatures are set to top out in the mid-90s degrees Fahrenheit (35 degrees Celsius) through Thursday in New York City, Philadelphia and Washington, District of Columbia, with heat index values that measure humidity reaching into the upper-90s and low-100s F. #

A hotel guest rests in the pool of the Marina Bay Sands Skypark in front of the hazy skyline of Singapore June 17, 2013. The haze worsened on Monday with the Polluntant Standards Index (PSI) hitting 111 at 4pm, according to local media. #

A line of fire runs across the forest floor as a wildfire burns in Black Forest, Colorado, on June 12, 2013. Fire crews battled a wind-whipped wildfire that burned at least 80 homes near Colorado Springs, while another blaze shut one of the state's top tourist attractions and forced the evacuation of more than 900 inmates from a prison. #

Double amputee Chris Moon of the U.K. runs in the AdventurCORPS Badwater 135 ultra-marathon race on July 15, 2013 in Death Valley National Park, California. Billed as the toughest footrace in the world, the 36th annual Badwater 135 starts at Badwater Basin in Death Valley, 280 feet below sea level, where athletes begin a 135-mile non-stop run over three mountain ranges in extreme mid-summer desert heat to finish at 8,350 feet above sea level near Mount Whitney for a total cumulative vertical ascent of 13,000 feet. #

Randy Kern (left) and John Rice dress as Star Wars characters for their own annual snapshot tradition near an unofficial thermometer at Furnace Creek Visitors Center reading of 131 degrees, believed by officials to be about three degree on the high side, as a heat wave spreads across the American West on June 30, 2013 in Death Valley National Park, California. Weather forecasters predicted high temperatures could reach 130 degrees in Death Valley, breaking the hottest-ever temperature for June of 128 degrees, set on June 29, 1994. It is also just four degrees shy of breaking the all-time world record of 134 degrees which occurred here 100 years ago on July 10, 2013. #

A man cleans the balcony of a high-rise luxury residential apartment in the washed out background of the sea in Singapore's central business district, on June 21, 2013. Haze from fires in Indonesia blanketing Singapore could persist for weeks or longer, Prime Minister Lee Hsien Loong said, as the smoke drove air quality to "hazardous" levels and disrupted business and travel in the region. #

Russia's President Vladimir Putin, seen through the glass of C-Explorer 5 submersible after a dive to see the remains of the naval frigate "Oleg", which sank in the 19th century, in the Gulf of Finland in the Baltic Sea, on July 15, 2013. #

A Ukrainian woman smiles as she participates in the celebration of the traditional Ivana Kupala (Ivan the Bather) holiday near Kiev, on July 6, 2013. The ancient tradition, originating from pagan times, is usually marked in Ukraine with grand overnight festivities. During the Ivana Kupala, people jump over burning campfires and bathe in a lake or a river, as they believe it will purge them of their sins and make them healthier. #

People walk through an area of Death Valley known as the Devils Golf Course in 116-degree and rising temperatures as a heat wave spreads across the American West on June 30, 2013 in Death Valley National Park, California. #

A man watches fireworks as he takes a bath in the Mediterranean Sea on San Juan's night, which traditionally is the shortest night of the year, in the southern Spanish town of Malaga, early June 24, 2013. #