High temperature villagers wear cotton-padded jackets and eat hot pot in a cave. It’s 16 degrees inside the cave and 43 degrees outside. Why is the temperature difference so big?

The villagers of Fengfeng Ancient Town in Banan District, Chongqing put on cotton-padded clothes, ate hot pot, and set up tents to escape the summer heat in the cave. The photographer said that the cave, which is only 16 degrees Celsius all year round, is very cool and spacious. Every summer they go into the cave to cool off. This year the weather is particularly hot, so they arranged to eat hot pot inside. According to data from the Central Meteorological Administration, China's heat wave events this summer have reached the strongest level since 1961, and the latest forecast shows that the "envelope" of the heat wave is expected to weaken significantly after the 26th.

This place is indeed a gift from nature. The outside of the cave is like a volcano, and the inside is like thousand-year-old ice. The outside of the cave is so hot that you are sweating, but the inside of the cave is so cold that you are shivering.... This It's really amazing. Only those who have experienced the heat know how good it feels to be cool, and those who have experienced the cold know how precious heat is. Only after experiencing the alternation of hot and cold worlds can you know how wonderful this world is.

Mr. Huang, a local villager, told reporters that there are several such caves in this area. The entrance of the dry cave is very close to the road, making it easy to enter and exit. The nearby villagers have also repaired the road at the entrance of the cave, so people come to the dry cave to escape the heat. There are more people. Because the cave is dark and the temperature is low, people usually come during the day and take shelter on the flat ground at the entrance of the cave. After a while, they will feel cold. Mr. Huang and his companions entered the cave with a thermometer and measured that the lowest temperature in the cave was only 13 degrees Celsius. On the morning of the 21st, Mr. Huang also saw some villagers wearing cotton clothes and resting in the cave.

Fengcheng City government staff said that there are no dry caves in the local area, and villagers have been banned from cooking hot pot in the caves. Special staff are also patrolling the caves, and foreign tourists are not recommended to visit for the time being. "The locals were nearby and quickly went outside to rest for a while, but it was difficult to control the belongings brought by tourists from other places, and they could still sleep inside. There is also great emphasis on forest fire prevention, and there are some risks." A staff member said .