A worker is seen by a swimming pool in New York, the United States, on July 27, 2020. A heat wave hit New York City on Monday as the highest temperature reached over 36 degrees Celsius. (Xinhua/Wang Ying)

People wait to enter a swimming pool in New York, the United States, on July 27, 2020. A heat wave hit New York City on Monday as the highest temperature reached over 36 degrees Celsius. (Xinhua/Wang Ying)

People enjoy themselves in a swimming pool in New York, the United States, on July 27, 2020. A heat wave hit New York City on Monday as the highest temperature reached over 36 degrees Celsius. (Xinhua/Wang Ying)

Lifeguards are seen on duty by a swimming pool in New York, the United States, on July 27, 2020. A heat wave hit New York City on Monday as the highest temperature reached over 36 degrees Celsius. (Xinhua/Wang Ying)

Lifeguards are seen on duty by a swimming pool in New York, the United States, on July 27, 2020. A heat wave hit New York City on Monday as the highest temperature reached over 36 degrees Celsius. (Xinhua/Wang Ying)