For the past two decades, Hong Kong has achieved its energy and emission targets, such as the energy intensity target from the Energy Saving Plan and CAP2030+’s absolute emission target. Considering Hong Kong’s previous emission trajectory, it is possible for Hong Kong to reach its mid-term target of 50% before 2035, using 2005 as the baseline year. To maintain Hong Kong’s pace of decarbonisation, the Government must consider a more holistic approach to its climate action and incorporate other sectors, such as waste, climate adaptation, and biodiversity protection to ensure long-term success.