Visitors in play blossoming lavender at China's largest lavender theme park in Shenbei New District on August 12, 2015 in Shenyang, Liaoning Province of China. More than 799,920 square meters of lavender blossomed in China's largest lavender theme park which attracted visitors to enjoy. (Photo by ChinaFotoPress/ChinaFotoPress via Getty Images)

A firefighter observes a helicopter as it tries to extinguish a fire in Castro Beiro, Galicia, northwestern Spain, 11 August 2015. (Photo by Brais Lorenzo/EPA)

In this August 3, 2015 photo, Yuki Chidui, sushi chef and manager at Nadeshico sushi restaurant, shows off a set of sushi she made at her all-women restaurant in Tokyo. Deeply rooted stereotypes such as the so-called “Edo-style” macho demeanor of sushi chefs and belief that warmer body temperature of women leads to inferior taste have kept sushi preparation an almost exclusively male domain in Japan. But some women are out to challenge tradition and are learning the art of sushi at a time when the government is emphasizing a greater role for women to offset Japan's shrinking workforce. (Photo by Koji Sasahara/AP Photo)

A man reacts at a crime scene, where the driver of a public bus and his assistant were shot dead, in Mixco, on the outskirts of Guatemala City, August 11, 2015. Four people died in three armed attacks on buses in the cities of Guatemala and Mixco, local media reported on Tuesday, adding that the murders were related to cases in which the drivers refused to pay extortion to criminal gangs. (Photo by Jorge Dan Lopez/Reuters)

Paramedics are seen outside a public bus, where its driver and his assistant (background, covered with blue sheet) were shot dead, in Mixco, on the outskirts of Guatemala City, August 11, 2015. (Photo by Jorge Dan Lopez/Reuters)

The body of a bus driver assistant, seen clutching money in his hand, is covered with a blue sheet after he was shot dead along with the bus driver, in Mixco, on the outskirts of Guatemala City, August 11, 2015. (Photo by Jorge Dan Lopez/Reuters)

A researcher retrieves a NUSwan (New Smart Water Assessment Network) autonomous watercraft that is disguised as a swan to monitor water quality at a reservoir in Singapore August 12, 2015. The robot swans, developed by a team of researchers from the National University of Singapore's Environmental Research Institute, blend into the environment, using GPS to navigate their way in a water body to test water quality and watch for pollutants and contaminants. They transfer real time date through WiFi-network in range and return to shore autonomously to recharge batteries. Singapore currently imports about 62 percent of its water supply from Malaysia in a bilateral agreement that will expire in 2061. The remaining supply for the city-state of 5.4 million people are met through rainwater collection, desalination and water reclamation. (Photo by Edgar Su/Reuters)

Two NUSwan (New Smart Water Assessment Network) autonomous watercraft disguised as swans monitor water quality at a reservoir in Singapore August 12, 2015. (Photo by Edgar Su/Reuters)

Jose Uriel Delgado, 115, better known locally as “Chepito” exercises during an individualised therapy at nursing home Sisters of Charity in San Jose, Costa Rica August 11, 2015. This elderly Costa Rican man reportedly born at the turn of the 20th century could be the world's oldest, but his lack of documentation and testimony from family and friends could see his alleged 115-year-old out of the record books. Luis Bolanos, Director General at Costa Rica's Civil Registry said official records back up the oldest-man-in-the-world claim. (Photo by Juan Carlos Ulate/Reuters)

A wedding couple poses in the sea during a photo session on Isla Blanca beach in Cancun, Mexico, August 11, 2015. (Photo by Edgard Garrido/Reuters)

A police officer holds a protester who was detained in Ferguson, Missouri, August 10, 2015. Protesters regrouped in Ferguson, Missouri, on Monday evening after a state of emergency was declared, aimed at preventing a repeat of violence the night before on the anniversary of the police shooting of unarmed black man Michael Brown. (Photo by Rick Wilking/Reuters)

Disposable products, including condoms, are pictured at a branch of Hotel Yaja in Seoul, South Korea, July 21, 2015. The grimy windows, racks of adult videos and red bedroom lights are disappearing from South Korea's short-stay hotels as they move upmarket to lure young people who are shedding conservative attitudes in favour of more openness about s*x. Competition is heating up amid the falling numbers of the so-called “love hotels”, which featured this year in television advertisements by smartphone app companies targeting young, privacy-seeking couples who form the bulk of customers. At the Hotel Yaja Wangsimni in Seoul, part of a growing franchise chain, amorous couples can enjoy rooms with whirlpool baths, laptops, brand-name amenities and fresh bedsheets, all for 30,000 won ($26) for three hours. (Photo by Kim Hong-Ji/Reuters)

A view of a room at a branch of Hotel The Designers in Seoul, South Korea, July 29, 2015. (Photo by Kim Hong-Ji/Reuters)

A room is decorated with a mural at a branch of Hotel The Designers in Seoul, South Korea, July 29, 2015. (Photo by Kim Hong-Ji/Reuters)

Bathrobes hang on the wall of an empty room at a branch of Hotel Yaja in Seoul, South Korea, July 21, 2015. (Photo by Kim Hong-Ji/Reuters)

A man sets himself on fire during a weekly anti-Japan rally to demand for an official apology and compensation from the Japanese government in front of the Japanese embassy in Seoul, South Korea, August 12, 2015. A South Korean man set himself on fire on Wednesday at a protest in front of the Japanese embassy in Seoul, days before the Aug. 15th anniversary marking 70 years since the end of Japan's colonial occupation of the Korean peninsula. (Photo by Son Hyung-ju/Reuters/News1)

A man attempts to put out flames from another man (bottom) who set himself on fire during a weekly anti-Japan rally to demand for an official apology and compensation from the Japanese government in front of the Japanese embassy in Seoul, South Korea, August 12, 2015. (Photo by Kim Hong-Ji/Reuters)

A South Korean man, left, sets himself on fire as a woman tries to extinguish him during an anti-Japan rally demanding full compensation and an apology for wartime s*x slaves from the Japanese government in front of the Japanese Embassy in Seoul, South Korea, Wednesday, August 12, 2015. Rescue worker Woo Kyung-suk said that the 80-year-old man sustained third-degree burns on his upper body and arms and was breathing when he was carried into an emergency vehicle. The man's motives weren't immediately clear. (Photo by Lee Jin-man/AP Photo)

A Dassault Rafale fighter participates in a flying display during the 51st Paris Air Show at Le Bourget airport near Paris in this June 16, 2015 file photo. India's order of 36 French-made Rafale fighter jets has run into trouble with government officials struggling to agree sales terms, sources said, four months after Prime Minister Narendra Modi intervened to break a logjam in previous commercial negotiations. (Photo by Pascal Rossignol/Reuters)

A boy paddles on a hot summer day in a canoe through a canal underneath the Keiyo highway that runs on stilts through eastern Tokyo August 12, 2015. (Photo by Thomas Peter/Reuters)

People soak their feet in water to cool down as they sit underneath a bridge at the Cheonggye stream during a hot summer day in Seoul, South Korea, August 12, 2015. (Photo by Kim Hong-Ji/Reuters)

Syrian refugees help a woman off a dinghy as they arrive at a beach on the Greek island of Kos, August 12, 2015. The United Nations refugee agency (UNHCR) called on Greece to take control of the “total chaos” on Mediterranean islands, where thousands of migrants have landed. About 124,000 have arrived this year by sea, many via Turkey, according to Vincent Cochetel, UNHCR director for Europe. (Photo by Yannis Behrakis/Reuters)

A Syrian refugee sends text messages to relatives moments after arriving at a beach on the Greek island of Kos, August 12, 2015. (Photo by Yannis Behrakis/Reuters)

Cambodian children try to kill rats with sticks in a rice field in Takeo province, south of Phnom Penh August 11, 2015. The many children catching rats in this area say these rodents have become an increasingly popular free food in their area. (Photo by Samrang Pring/Reuters)

Cambodian children catch rats in a rice field in Takeo province, south of Phnom Penh August 11, 2015. (Photo by Samrang Pring/Reuters)

A Cambodian child poses with rats he skinned after catching them in a rice field in Takeo province, south of Phnom Penh August 11, 2015. (Photo by Samrang Pring/Reuters)

In this image provided by the U.S. Air Force, an F-16 Fighting Falcon takes off from Incirlik Air Base, Turkey, as the U.S. on Wednesday, August 12, 2015, launched its first airstrikes by Turkey-based F-16 fighter jets against Islamic State targets in Syria, marking a limited escalation of a yearlong air campaign that critics have called excessively cautious. (Photo by Krystal Ardrey/U.S. Air Force via AP Photo)

A migrant is rescued by an Italian Navy helicopter in the area where his boat sank in the Mediterranean Sea in this August 11, 2015 handout courtesy of the Italian Navy. Up to 50 migrants went missing after a large rubber dinghy sank in the Mediterranean Sea, Italian rescuers said on Wednesday, while more than 1,500 were picked up from other vessels in the past 24 hours. (Photo by Reuters/Italian Navy)

A migrant lies in an Italian Navy helicopter after being rescued in the area where his boat sank in the Mediterranean Sea in this August 11, 2015 handout courtesy of the Italian Navy. (Photo by Reuters/Italian Navy)

Syrian children stand near the shore in Cesme, near the Aegean port city of Izmir, Turkey, August 12, 2015. (Photo by Osman Orsal/Reuters)

A man carries a painting depicting Pope Francis during the Wednesday general audience in Paul VI hall at the Vatican August 12, 2015. (Photo by Remo Casilli/Reuters)

Pope Francis holds a Chilean flag which he received from a newly married couple during his Wednesday general audience in Paul VI hall at the Vatican August 12, 2015. (Photo by Remo Casilli/Reuters)

Newly married couples use a “selfie stick” during Pope Francis' Wednesday general audience in Paul VI hall at the Vatican August 12, 2015. (Photo by Remo Casilli/Reuters)

Caterine Ibarguen of Colombia competes in the women's triple jump during the IAAF Diamond League athletics meeting, also known as Memorial Van Damme, in Brussels, in this September 6, 2013 file photo. (Photo by Francois Lenoir/Reuters)

Rescue workers search at the site of a mining factory after a landslide hit Shanyang county, Shaanxi province, August 12, 2015. According to Xinhua News Agency, rescuers have dug out four people from their dormitories and houses buried in the landslide on Wednesday. Around 40 people are still missing. (Photo by Reuters/Stringer)

Rescue workers remove people from the site after a landslide hit a mining factory in Shanyang county, Shaanxi province, August 12, 2015. (Photo by Reuters/China Daily)

A rescue worker is seen next to a excavator as a search is conducted at the site of a mining factory after a landslide hit Shanyang county, Shaanxi province, August 12, 2015. (Photo by Reuters/Stringer)

A Taiwan-made MALE (medium-altitude long-endurance) unmanned aircraft is displayed at the Taipei World Trade Centre during the 2015 Taipei Aerospace and Defense Technology Exhibition, August 12, 2015. The Taipei Aerospace and Defense Technology Exhibition is held from August 13 to 16. (Photo by Pichi Chuang/Reuters)

Soldiers display a Taiwan-made immersive interaction i2s3 shooting simulation system at the Taipei World Trade Centre during the 2015 Taipei Aerospace and Defense Technology Exhibition, August 12, 2015. (Photo by Pichi Chuang/Reuters)

A Taiwan-made MALE (medium-altitude long-endurance) unmanned aircraft is displayed at the Taipei World Trade Centre during the 2015 Taipei Aerospace and Defense Technology Exhibition, August 12, 2015. (Photo by Pichi Chuang/Reuters)

A man demonstrates the Taiwan-made coastal defense rocket system at the Taipei World Trade Centre during the 2015 Taipei Aerospace and Defense Technology Exhibition, August 12, 2015. (Photo by Pichi Chuang/Reuters)

Russian naval forces veteran salutes during a commemoration ceremony at a monument for Kursk nuclear submarine crew in Moscow, Russia August 12, 2015. Russia marks fifteen years since the loss of 118 sailors when the nuclear submarine Kursk went down in the Barents Sea after a torpedo exploded on board. (Photo by Sergei Karpukhin/Reuters)

A civilian reacts after what activists said were airstrikes by forces loyal to Syria's President Bashar al-Assad on a busy marketplace in the Douma neighborhood of Damascus, Syria August 12, 2015. Syrian government air strikes on rebel-held areas near Damascus killed at least 31 people on Wednesday, and insurgents bombarded the capital with rockets that killed at least 13 people, the Syrian Observatory for Human Rights reported. (Photo by Bassam Khabieh/Reuters)

Men help an injured civilian after what activists said were airstrikes by forces loyal to Syria's President Bashar al-Assad on a busy marketplace in the Douma neighborhood of Damascus, Syria August 12, 2015. (Photo by Bassam Khabieh/Reuters)

A girl reacts after what activists said were airstrikes by forces loyal to Syria's President Bashar al-Assad on a busy marketplace in the Douma neighborhood of Damascus, Syria August 12, 2015. (Photo by Bassam Khabieh/Reuters)

A woman pushes a baby stroller as she rushes away after what activists said were airstrikes by forces loyal to Syria's President Bashar al-Assad on a busy marketplace in the Douma neighborhood of Damascus, Syria August 12, 2015. (Photo by Bassam Khabieh/Reuters)

An injured man gestures as he sits near a wounded woman after what activists said were airstrikes by forces loyal to Syria's President Bashar al-Assad on a busy marketplace in the Douma neighborhood of Damascus, Syria August 12, 2015. (Photo by Bassam Khabieh/Reuters)

People inspect the damage after what activists said were airstrikes by forces loyal to Syria's President Bashar al-Assad on a busy marketplace in the Douma neighborhood of Damascus, Syria August 12, 2015. (Photo by Bassam Khabieh/Reuters)

A wounded Syrian girl cries at a make-shift hospital in the rebel-held area of Douma, east of the capital Damascus, following reported air strikes by regime forces, on August 12, 2015. At least 27 civilians were killed in Syrian government air strikes on the Eastern Ghouta region near Damascus according to a monitoring group. (Photo by Abd Doumany/AFP Photo)

A model wears a creation by Justin Chew during the Kuala Lumpur Fashion Week in Kuala Lumpur, Malaysia, August 12, 2015. The Kuala Lumpur Fashion Week will be held from August 12 to August 16. (Photo by Olivia Harris/Reuters)

A model wears a creation by Kittie Yiyi during the Kuala Lumpur Fashion Week in Kuala Lumpur, Malaysia, August 12, 2015. (Photo by Olivia Harris/Reuters)

Cricket, England vs Australia, Women's Ashes Series 2015, Kia Women's Ashes Test, The Spitfire Ground, Canterbury on August 12, 2015: England's Katherine Brunt celebrates taking the wicket of Australia's Jess Jonassen (R). (Photo by Peter Cziborra/Reuters/Action Images)

Men stand next to a board showing currency exchange rates of the U.S. dollar, euro, and British pound (top-bottom) against the rouble in Moscow, Russia, August 12, 2015. The Russian rouble hit a six-month low on Wednesday, tracking down lower oil prices and ignoring a central bank statement saying that the devaluation of the Chinese yuan may ultimately benefit the rouble. (Photo by Sergei Karpukhin/Reuters)

A teller at a money changer displays Indonesian Rupiah and US dollars in Jakarta, Indonesia August 12, 2015 in this photo taken by Antara Foto. Indonesia's central bank was spotted “heavily” intervening to defend the rupiah on Wednesday, traders said, as the currency fell to a level last seen during the Asian financial crisis 17 years ago. (Photo by Rivan Awal Lingga/Reuters/Antara Foto)

A U.S. Air Force Boeing C-17A Globemaster III large transport aircraft flies over a minaret after taking off from Incirlik air base in Adana, Turkey, August 12, 2015. (Photo by Murad Sezer/Reuters)

Members of the group of 22 people, newly settled in the village of Odrintsi, Bulgaria, pose for a picture, August 10, 2015. A self-described shaman who discovered the healing powers of herbs while seeing visions on his sickbed; a former consultant for IBM who ditched PowerPoint presentations to drive across Africa and an artist from Luxembourg who is a qualified plumber. They are among a group of 22 people newly settled in the crumbling village of Odrintsi in southeastern Bulgaria where they live without electricity, but with 230 goats. (Photo by Stoyan Nenov/Reuters)

Bastian Hummes (R) teaches his child to milk a goat in the village of Odrintsi, Bulgaria, August 10, 2015. (Photo by Stoyan Nenov/Reuters)

Members of a local dancing group Tatiana Lysikova (R-L), Daria Khrapykina and her sister Cristina Khrapykina practice Float Board Yoga on the Yenisei River as they rest in a summer camp outside the Siberian city of Krasnoyarsk, Russia, August 12, 2015. (Photo by Ilya Naymushin/Reuters)

The artwork “Drone Shadow 008” by UK artist James Bridle is seen on the street in front of the KW gallery in Berlin, Germany August 11, 2015. British artist and anti-surveillance activist James Bridle is illuminating Germany with artwork exploring the darkest state secrets, cover-ups and information blackouts. (Photo by Stefanie Loos/Reuters)

Canadian independent parliamentary candidate Wyatt Scott appears with an alien in a still image from a promotional video provided by his campaign office. He rides a Canada goose, slays a dragon and fist bumps an alien – and that's just in the first 30 seconds of Wyatt Scott's campaign video for the upcoming Canadian federal election. Scott, an independent who is running to represent a region of rural British Columbia in the October 19 vote, posted the attention-grabbing video on YouTube in mid-June, but it went viral this week after being shared widely in online forums. (Photo by Wyatt Scott/Reuters)

Women take part in the March of the Daisies, calling for improved rights for women working in rural areas and forests, in Brasilia August 12, 2015. (Photo by Ueslei Marcelino/Reuters)

A dining table is decorated with flowers at the “Flowertime” event in Brussels' town hall, Belgium, August 12, 2015. The event, which will open to visitors between August 13 and 16, 2015 has an Italian baroque theme this year. (Photo by Francois Lenoir/Reuters)

Tourists visiting the National Gallery are unable to enter some galleries following strike action by staff, in London, Britain, August 12, 2015. Gallery workers are opposed to privatisation plans and have staged indefinite industrial action. (Photo by Peter Nicholls/Reuters)

Women pray for Tomislav Salopek in local church in Vrpolje village, Croatia, August 12, 2015. An Egyptian group allied to Islamic State has published a photograph it says showed the beheaded body of a Croatian hostage it threatened to kill last week, the SITE monitoring service said on Wednesday. Reuters could not independently verify the authenticity of the picture, which carried a caption that said: “killing of the Croatian hostage, due to his country's participation in the war against Islamic State, after the deadline expired”. Last week, an online video purportedly from Sinai Province showed a man who identified himself as Tomislav Salopek and said the group would kill him in 48 hours unless Muslim women in Egyptian jails were freed. (Photo by Antonio Bronic/Reuters)

Cast members Josh Holloway and Sarah Wayne Callies attend a panel for the NBCUniversal (USA) television series “Colony” during the Television Critics Association Cable Summer Press Tour in Beverly Hills, California August 12, 2015. (Photo by Mario Anzuoni/Reuters)

A street vendor sells candy and bread to riot police officers after a protest in front of the Supreme Electoral Council (CSE) building in Managua, Nicaragua August 12, 2015. The protesters said they were demonstrating to demand fairer elections in the country next year. (Photo by Oswaldo Rivas/Reuters)

Opposition supporters lie down on the ground in front of a line of riot police officers during a protest in front of the Supreme Electoral Council (CSE) building in Managua, Nicaragua August 12, 2015. (Photo by Oswaldo Rivas/Reuters)

People swim in a pool on a hot summer day in the western Austrian village of Ellmau, August 12, 2015. (Photo by Dominic Ebenbichler/Reuters)

Children slide down a water slide on a hot summer day in the western Austrian village of Ellmau, August 12, 2015. (Photo by Dominic Ebenbichler/Reuters)

Jockeys ride during a traditional race along the beach of Sanlucar de Barrameda, southern Spain August 12, 2015. (Photo by Marcelo del Pozo/Reuters)

Jockeys ride during a traditional race along the beach of Sanlucar de Barrameda, southern Spain August 12, 2015. (Photo by Marcelo del Pozo/Reuters)

An man blows a conch while marching with fellow protesters in Guamani, on the outskirts of Quito, Ecuador, August 12, 2015. Ecuadorean Indigenous from the Confederation of Indigenous Nationalities of Ecuador (CONAIE) are marching towards Quito to participate in a nation-wide strike on August 13 against the government of Ecuador's President Rafael Correa, according to local media. (Photo by Guillermo Granja/Reuters)

Argentine policemen patrol a flooded street on a boat in Lujan, Argentina, August 12, 2015. Over 20,000 people have been evacuated after torrential rains in the last weekend caused rivers to rise and flood cities in northern Buenos Aires province, local media reported. (Photo by Marcos Brindicci/Reuters)

Marshals watch as a bird flies near the 8th tee during a practice round for the PGA Championship golf tournament Wednesday, August 12, 2015, at Whistling Straits in Haven, Wis. (Photo by Julio Cortez/AP Photo)

A picture made available 12 August 2015 shows the Buddha head in tree roots at Wat Mahathat, one of the many temples in the ancient historical city of Ayutthaya, north of Bangkok, Thailand, 11 August 2015. Thailand's capital for 417 years, the ancient city of Ayutthaya lies 76 kilometers north of Bangkok. It was King U-Thong who founded Ayutthaya in 1350, and it is today one of the country's major tourist attractions. Ancient temple ruins and works of art can be found in Ayutthaya. Throughout its time as capital, Ayutthaya was home to 33 kings from different dynasties ruling the Thai kingdom until the Burmese army sacked it in 1767. Ayutthaya is now a UNESCO heritage site since 13 December 1991. (Photo by Diego Azubel/EPA)

Street vendors selling water grass wade through a flooded road in Dar Ka township of Ayeyarwaddy Region, Myanmar, 12 August 2015. Myanmar's government on 04 August 2015 warned low-lying regions to expect even more flooding after heavy rainfall brought havoc to higher areas further north. Weeks of heavy monsoon rain have affected over one million people, about 100 people so far are reported dead and damaged was caused to more than 687,200 acres of farmland. The water has receded in many areas, many roads and bridges were destroyed in the worst affected states and regions. Transportation remains a challenge for ongoing assessments and delivery of assistance. A low-pressure system in the Bay of Bengal could bring strong winds and heavy rainfall to the Ayeyarwady Region and the southern coast of Rakhine State, already affected by the floods, United Nations Office for the Coordination of Humanitarian Affairs (OCHA) report. (Photo by Lynn Bo Bo/EPA)

A resident riding a tricycle negotiates floodwaters after a sudden heavy downpour inundated streets in the financial district of Manila on August 12, 2015, stranding thousands of commuters and office workers. Hundreds of people are killed in natural disasters each year in the Philippines, which is battered by an average of 20 typhoons and tropical storms annually. (Photo by Ted Aljibe/AFP Photo)

A man inspects the teeth of the 3,000 ton open-pit rotary excavator 1571 in Weisswasser, Germany, on August 12, 2015. The giant machine moves at a rate of about six metres per minute heading to the next dig site at the neighbouring open cast mine of Nochten Reichwalde. (Photo by Arno Burgi/EPA)

Picture released by Noticias Argentina of a flooded area by the Basilica of Our Lady of Lujan in Buenos Aires province, Argentina on August 12, 2015. 1300 people remain evacuated in the humid pampas of Argentina after several days of rains with overflowing of rivers which left three people killed. (Photo by Daniel Vides/AFP Photo/NA)

Firefighters try to extinguish a wildfire in Mangualde, Portugal, 11 August 2015. About 200 firefighters, 58 land vehicles, two helicopters and one plane are working to fight the fire. (Photo by Nuno Andre Ferreira/EPA)

Palestinian fighters of Ezz Al-Din Al-Qassam militia, the military wing of the Hamas movement, pray next to their weapons after their parade in the streets of Beit Hanun in the northern Gaza Strip, 11 August 2015. (Photo by Mohammed Saber/EPA)

Three-year-old Nour Al Masri (L) watches as the Ezz Al-Din Al-Qassam militia, the military wing of the Hamas movement, parades in the streets of Beit Hanun in the northern Gaza Strip, 11 August 2015. (Photo by Mohammed Saber/EPA)

Syrian refugees sleep on railway lines near the train station of Idomeni, northern Greece, on Wednesday, August 12, 2015. Greece is Europe's main entry point for people arriving by sea, as the alternative route from north Africa to Italy has become increasingly dangerous due to fighting in Libya. From Greece, the migrants move north through the Balkans, hoping to gain asylum, preferably in Germany, the Netherlands or Scandinavia. (Photo by Giannis Papanikos/AP Photo)

Over 90 million plastic balls cover the Los Angeles Reservoir in the Sylmar area of Los Angeles Wednesday, August 12, 2015. The city has completed a program of covering open-air reservoirs with floating “shade balls” to protect water quality. The 4-inch-diameter plastic balls block sunlight from penetrating the 175-acre surface of the reservoir, preventing chemical reactions that can cause algae blooms and other problems. (Photo by Damian Dovarganes/AP Photo)

The Los Angeles Reservoir is covered with over 90 million black plastic balls in the Sylmar area of Los Angeles Wednesday, August 12, 2015. (Photo by Damian Dovarganes/AP Photo)

An Australian drag circus act pose for pictures during a photocall outside The Oval cricket ground on August 12, 2015 in London, England. The photocall comes one week ahead of the fifth and final Ashes Test Match at the ground when England will regain the Ashes trophy after already securing an unsurmountable lead. (Photo by Dan Kitwood/Getty Images)

Migrants sit alongside railway tracks while waiting for a train towards Serbia, at the railway station in the southern Macedonian town of Gevgelija, Wednesday, August 12, 2015. Macedonia is seeing increasing numbers of migrants flow through its southern and northern borders with Greece and Serbia as thousands transit through the country on their way from the Middle East, Asia and Africa. (Photo by Boris Grdanoski/AP Photo)

Migrants wait for a train towards Serbia, at the railway station in the southern Macedonian town of Gevgelija, Wednesday, August 12, 2015. (Photo by Boris Grdanoski/AP Photo)

A woman walks past an electronic stock indicator of a securities firm in Tokyo, displaying Tokyo’s Nikkei 225 that lost 327.98 points or 1.58 percent to 20,392.77, Wednesday, August 12, 2015. Asian stocks sank as China let its currency fall for a second day following a surprise devaluation that rattled global financial markets. (Photo by Ken Aragaki/AP Photo)

Hot air balloons fly during the 19th FAI Hot Air Balloon European Championship in Debrecen, 226 kms east of Budapest, Hungary, August 12, 2015. Hundred and two contestants of twenty-three countries participate in the event through August 18. (Photo by Zsolt Czegledi/EPA)

An Indian artist gives the final touch to lion sculptures as he stands in front of idols of elephant headed Hindu God Ganesha at a workshop in Mumbai, India, August 12, 2015. The upcoming festival marks the birthday of Lord Ganesha. During the event, Ganesha idols are worshipped at hundreds of “pandals” or makeshift tents before they are immersed into water bodies. (Photo by Divyakant Solanki/EPA)

A woman walks past a giant Pac-Man in Tokyo's Shinjuku area, Wednesday, August 12, 2015. The three-meter (about nine feet and 10 inches)-tall Pac-Man and other video game characters, made of Lego bricks, were on display to promote the upcoming movie “Pixels”. (Photo by Ken Aragaki/AP Photo)

Actress Kristen Stewart (L) is interviewed by Jimmy Fallon on “The Tonight Show Starring Jimmy Fallon” at Rockefeller Center on August 11, 2015 in New York City. (Photo by Mike Coppola/NBC/Getty Images for “The Tonight Show Starring Jimmy Fallon”)

High-wire daredevil Nik Wallenda walks a tightrope above the Milwaukee Mile Speedway at the Wisconsin State Fair in West Allis, Wis. Tuesday, August 11, 2015. Wallenda completed his longest tightrope walk ever during the appearance at the Wisconsin State Fair. (Photo by Mike De Sisti/Milwaukee Journal-Sentinel via AP Photo)

Washington Mystics guard Tierra Ruffin-Pratt, front, drives to the basket past Indiana Fever guard Briann January during the first half of a WNBA basketball game, Tuesday, August 11, 2015, in Washington. (Photo by Alex Brandon/AP Photo)

Comedian/TV personality Howie Mandel takes a picture of model/TV personality Heidi Klum before the “America's Got Talent” season 10 taping at Radio City Music Hall on August 11, 2015 in New York City. (Photo by Michael Loccisano/Getty Images)