A man walks by as tourists take selfies on the French Riviera city of Nice on June 24, 2019, as temperatures soar to 33 degrees Celsius. Forecasters say Europeans will feel sizzling heat this week with temperatures soaring as high as 40 degrees Celsius (104 degrees Fahrenheit) in an “unprecedented” June heatwave hitting much of Western Europe. (Photo by Valery Hache/AFP Photo)

Extras in the arena of the “Fete des Vignerons” (winegrowers' festival in French), during the last rehearsal in Vevey, Switzerland, 17 July 2019. Organized by the brotherhood of winegrowers, the event will celebrate winemaking from 18 July to 11 August. The arena has a capacity of 20,000 spectators and hosts a giant central LED floor of approximately 800 square meters. (Photo by Laurent Gilliéron/EPA/EFE)

The sun sets on Walney Island, Cumbria, county in North West England on October 10, 2019. Today will be unsettled with spells of heavy rain. (Photo by GREENBURN/Alamy Live News)

Israelis sit by as a man poses while jumping into the pool of the natural water spring of Ein al-Faraah near the Palestinian village of Doura, west of Hebron in the occupied West Bank, during the Jewish religious holiday of Sukkot (Feast of the Tabernacles) on October 17, 2019. (Photo by Hazem Bader/AFP Photo)

The pedestrian zone on the banks of the “Parco della Pace” at Lake Maggiore is flooded due to flooding, on Thursday, October 24, 2019 in Locarno, Switzerland. (Photo by Samuel Golay/Ti-Press/Keystoen)

An internally displaced Afghan girl holds a child at a refugee camp in Kabul, Afghanistan May 31, 2016. (Photo by Mohammad Ismail/Reuters)

An Afghan girl makes a pile of unbaked bricks near the road passing through the Shamali Plains, about 10 kilometers (6 miles), west of Bagram, Afghanistan, Wednesay April 9, 2003. Children assist parents in their job to supplement family income. (Photo by Gurinder Osan/AP Photo)

A racegoer enjoy the atmosphere following 2016 Derby Day at Flemington Racecourse on October 29, 2016 in Melbourne, Australia. Women attendees weren’t afraid to show off some skin as the warm summer weather arrived in Australia. (Photo by Splash News and Pictures)