Through the implementation of the above-mentioned series of policies and actions to control greenhouse gas emissions, Hong Kong has achieved remarkable results in controlling greenhouse gas emissions: from 2005 to 2016, Hong Kong&#39;s population increased by 7.7%, and its GDP grew by an average of 3.3% per year in real terms. The carbon dioxide emission of gross domestic product dropped by about 29%, and the per capita greenhouse gas emission in 2016 remained at about 5.7 tons of carbon dioxide equivalent.