Workers carry on in the heat

Scorching temperatures present challenges for those toiling outside

In sweltering heat on Wednesday, Chen Cheng, a maintenance employee with China's bike-sharing operator Mobike, had lifted more than 50 bikes onto a van by noon, the sweat stains obvious on his black uniform.

His job in the southern city of Guangzhou, Guangdong province, was to help transfer haphazardly placed bikes from outside a luxury shopping mall to somewhere more practical. He did not stop working despite a heat wave warning issued by the local observatory.