Hong Kong to review warning system after record heat triggers lowest alert

Hong Kong labour authorities have pledged to review the city’s heat stress warning system, a day after the weather forecaster issued the lowest-level alert for outdoor workers despite record-breaking temperatures, prompting questions about the index’s effectiveness. The pledge on Monday followed calls from experts for the government to adopt an international measurement that gives greater weight to direct sunlight, and to increase the number of heat stress monitoring stations so that all...