People enjoy leisure time on a beach of Lake Ontario during a heat wave in Toronto, Canada, on July 10, 2020. The temperature in Toronto marked the ninth consecutive day of temperature over 30 degrees Celsius on Friday. (Photo by Zou Zheng/Xinhua)

People paddle in Lake Ontario during a heat wave in Toronto, Canada, on July 10, 2020. The temperature in Toronto marked the ninth consecutive day of temperature over 30 degrees Celsius on Friday. (Photo by Zou Zheng/Xinhua)

People enjoy leisure time on a beach of Lake Ontario during a heat wave in Toronto, Canada, on July 10, 2020. The temperature in Toronto marked the ninth consecutive day of temperature over 30 degrees Celsius on Friday. (Photo by Zou Zheng/Xinhua)

People enjoy leisure time on a beach of Lake Ontario during a heat wave in Toronto, Canada, on July 10, 2020. The temperature in Toronto marked the ninth consecutive day of temperature over 30 degrees Celsius on Friday. (Photo by Zou Zheng/Xinhua)

People paddle in Lake Ontario during a heat wave in Toronto, Canada, on July 10, 2020. The temperature in Toronto marked the ninth consecutive day of temperature over 30 degrees Celsius on Friday. (Photo by Zou Zheng/Xinhua)

People enjoy leisure time on a beach of Lake Ontario during a heat wave in Toronto, Canada, on July 10, 2020. The temperature in Toronto marked the ninth consecutive day of temperature over 30 degrees Celsius on Friday. (Photo by Zou Zheng/Xinhua)