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LettersAs the seriousness of extreme weather sinks in, Hongkongers must act

Readers discuss how to respond to costly extreme weather events, the importance of brain health knowledge, and illegal renovation work

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People stand on stools outside a fruit store in Sai Ying Pun as the road floods during a black rainstorm warning on August 5. Photo: Karma Lo
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Extreme weather has been the talk of the town recently. Hong Kong has seen a record number of black rainstorms, not only inconveniencing the public but also leaving a costly trail of damage.

Our city is often said to be a blessed place, since we are safe from the most devastating natural disasters. However, with climate change, extreme weather poses a growing threat to our safety. There is an urgent need to improve our climate resilience.

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Firstly, boost expertise in predicting extreme weather events and making more accurate forecasts ahead of time, especially among scientists at the Hong Kong Observatory. More exchanges with foreign scientists could align Hong Kong scientists with the best global practices and the latest in weather prediction technology. This would allow the general public to be better prepared for extreme weather, thus minimising property damage and shortening the city’s recovery time from floods and typhoons.

Second, review the existing sewage and drainage infrastructure. Although heavy rainfall in summertime is not uncommon in Hong Kong, older drainage systems might not have been designed for extreme weather. Renewal or redesign could be implemented in the dry months, with priority given to flooding black spots old and new.
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Third, enhance the promotion of Hong Kong’s carbon-neutral policy through an extensive public education campaign on reducing greenhouse gas emissions. Increased greenhouse gas and carbon emissions lead to global warming, which intensifies typhoons and downpours.

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