Participants climb a 10km muddy obstacle course during the “Run Mud” race, on March 29, 2019 in the Israeli mediterranean coastal city of Tel Aviv. Over 6,000 participants took part in the obstacle race, with up to 18 artificial obstacles on three tracks (10 km, five km or two km). (Photo by Jack Guez/AFP Photo)

This picture taken on February 23, 2014 shows participants wearing dresses running half-naked in the annual 3.5 km Undie Run held in the Olympic Forest Park smog-covered Beijing. Some 200 participants took part in this event, many of them with gas masks, as dangerous smog blighted swathes of northern China in recent days. (Photo by AFP Photo/STR)

Fall foliage rests on a street after tumbling down after a winter storm October 30, 2011 in Doylestown, Pennsylvania. Thousands in Pennsylvania and Delaware were left without power from the early winter storm that left up to 10 inches of snow in parts of the states. (Photo by William Thomas Cain/Getty Images)

A vehicle is trapped in a flooded street during a rainstorm in Beijing city on June 23, 2011 in Beijing, China. Heavy rain that hit Beijing on Thursday afternoon has disrupted traffic and caused flooding low-lying areas. (Photo by ChinaFotoPress/Getty Images)

Villagers use a makeshift bamboo bridge to move across flooded areas of Morigaon district in the northeastern Indian state of Assam August 20, 2014. The latest heavy rains have caused landslides and floods in many parts of India and Nepal, where at least 90 people have been killed since Thursday. (Photo by Reuters/Stringer)

A security personnel detains a suspect after a blast in Kabul, November 25, 2014. A powerful explosion shook houses in the diplomatic quarter of Kabul on Tuesday, but there were no casualties in the second such incident in the Afghan capital in a single day, officials said. “Someone threw a hand grenade and he was apprehended”, said Sediq Sediqqi, a spokesman for the interior ministry. The suspect was being interrogated but his motive and target were still unclear, he added. (Photo by Omar Sobhani/Reuters)

Two women look at a mobile phone as they stand on Tiananmen Square during a sand storm in heavily polluted weather in Beijing on February 28, 2013. Beijing residents were urged to stay indoors as pollution levels soared before a sandstorm brought further misery to China's capital. (Photo by Ed Jones/AFP Photo)

A motorcycle carrying a pig crosses a flooded road in Albay province, central Philippines due to Typhoon Vamco on Thursday, November 12, 2020. (Photo by John Michael Magdasoc/AP Photo)