A child enjoys a fountain in Bucharest, Romania. Southern Romania is suffering through a massive heat wave with temperatures of up to 104 degrees Fahrenheit in some areas. (AP Photo/Vadim Ghirda)

A woman carries her baby through a sandstorm in Timbuktu. (REUTERS/Joe Penney)

A woman cries next to the coffins of victims of a bus crash in southern Italy. The bus plunged off a motorway viaduct and dropped 80 feet, killing 38 people. (REUTERS/Ciro De Luca)

Children fill up empty cigarettes with locally grown tobacco in a small bidi (cigarette) factory at Haragach in Rangpur district, Bangladesh. A 2012 study by the Campaign for Tobacco-Free Kids found that over 45,000 people in Bangladesh are employed in manufacturing these inexpensive cigarettes. (REUTERS/Andrew Biraj)

Pope Francis prepares to celebrate mass at Copacabana Beach on his sixth day in Rio de Janeiro. He directed the Catholic clergy to leave their comfort zones and smug surroundings and reach out to serve the poor and needy. (REUTERS/Sergio Moraes)

A member of Russia's synchronized swimming team performs during the World Swimming Championships at the Sant Jordi arena in Barcelona. (REUTERS/Albert Gea)

An 82-year-old woman named Refugio poses for a photograph inside her house in Mexico's central state of Tlaxcala. Nearly 50 percent of Mexicans reportedly live below the poverty line. (REUTERS/Edgard Garrido)

Syrian refugees scramble to enter a truck that will transport them back to their homeland at the Al-Zaatri refugee camp in the Jordanian city of Mafraq, near the Syrian border. (REUTERS/Muhammad Hamed)

Runners dressed in inflatable Sumo costumes stop for a quick hug as they prepare to take part in a 5K charity run at Battersea Park in London. (REUTERS/Toby Melville)

Visitors crowd an artificial wave pool at a tourist resort to escape the summer heat in Suining, Sichuan province, China. (REUTERS/China Daily)

Workers use buckets to remove crude oil during a clean-up operation on the beach of Prao Bay on Samet Island in eastern Thailand. About 13,200 gallons of crude oil, which leaked from a pipeline operated by PTT Global Chemical Plc., reached the popular tourist island despite ongoing attempts to clean it up. (AP Photo)

Michelle Knight speaks during the sentencing of her kidnapper, Ariel Castro, in Ohio. Castro, a one-time school bus driver, was sentenced to life in prison without parole plus 1,000 years for his abduction and imprisoning of three young women. (AP Photo/Tony Dejak)