Hong Kong authorities are expediting a revamp of their heat stress warning system, responding to concerns raised by former Observatory chiefs. The decision follows a recent, historically intense heatwave that exposed weaknesses in the existing alert mechanisms. Labour and Welfare chief Chris Sun announced the government will refine the system to better reflect Hong Kong's specific climate conditions. The improvements aim to provide more effective warnings to the public and protect vulnerable workers facing heat-related risks. Officials hope to have the upgraded system implemented by the end of the current month. This overhaul signals a commitment to prioritizing public health amid increasingly frequent and severe heat events. The revised system is expected to incorporate more nuanced indicators and targeted advisories.