As Hong Kong feels the heat, it needs a robust climate resilience strategy
Beyond alerts for extreme weather, the city needs a system that protects workers, older people, lower-income households and other vulnerable groups
The city is not alone in feeling the heat in this regard. Some countries in Europe have endured their hottest summer months on record, while the average global sea-surface temperature again reached an unprecedented high. The combination of a warming climate and powerful natural weather patterns is raising the likelihood of heatwaves and extreme rainfall.
Hong Kong cannot insulate itself from the global trend. Its dense urban form, ageing population and poorly ventilated homes mean many households, especially those in substandard partitioned flats, are vulnerable. A sizeable outdoor workforce, including construction workers and street cleaners, is also at the mercy of the mercury in the high summer months.
The episode may have given the impression that officials who design warning systems from air-conditioned offices do not fully feel the heat faced by those working outside. It also understandably left workers hot under the collar. A work safety warning system that appears disconnected from reality does little to show the government’s commitment to occupational health and safety.
Officials say the revised mechanism with a lower threshold will make the issuing of higher alerts easier. It is estimated that the red warning could be issued four to seven days a year as a result, while the black alert could be triggered one or two days a year.