Heat wave tightens grip on most China’s cities on July 28; Beijing issued second orange alert of heat. Hundreds of tourists gather at the Ocean and Beach Festival to release summer heat and enjoy summer time in Beijing. (Photo/CNS)

　　Heat wave tightens grip on most China’s cities on July 28; Beijing issued second orange alert of heat. Hundreds of tourists gather at the Ocean and Beach Festival to release summer heat and enjoy summer time in Beijing. (Photo/CNS)

　　Heat wave tightens grip on most China’s cities on July 28; Beijing issued second orange alert of heat. Hundreds of tourists gather at the Ocean and Beach Festival to release summer heat and enjoy summer time in Beijing. (Photo/CNS)

　　Heat wave tightens grip on most China’s cities on July 28; Beijing issued second orange alert of heat. Hundreds of tourists gather at the Ocean and Beach Festival to release summer heat and enjoy summer time in Beijing. (Photo/CNS)