On July 27, driver Chen Lin works in the compartment at 43 degrees Celsius. (Photo from Xinhua)

On July 27, the highest temperature in Chongqing exceeded 37 degrees Celsius.

Chen Lin, the 43-year-old driver, was sitting in the 43 degrees Celsius cabin as usual. The engine beside the driver seat was dissipating heat like a big perpetual heat generator. This summer is the ninth one since he began working.