Millions of China's gig workers are having to endure record heat waves without legally mandated "heat wave allowances", cooling breaks, or adequate insurance (Karoline Kan/Bloomberg)

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Karoline Kan / Bloomberg:Millions of China's gig workers are having to endure record heat waves without legally mandated “heat wave allowances”, cooling breaks, or adequate insurance  —  As the nation swelters, millions of delivery couriers brave deadly temperatures without legal protections or heat pay.