Greenhouse gas inventory released

July 4, 2023

The Environment & Ecology Bureau today released the 2021 greenhouse gas (GHG) emission inventory for Hong Kong.


Hong Kong's total GHG emissions in 2021 amounted to 34.7 million tonnes of carbon dioxide equivalent (CO2-e), a 4% rise compared with 2020. Per capita GHG emissions and carbon intensity for the year were about 4.7 tonnes and 0.012 kg CO2-e per Hong Kong dollar GDP respectively.


The bureau said the increase was largely attributable to the revival of domestic economic activity and higher demand for electricity as COVID-19 became relatively stable in Hong Kong in 2021, as well as to record-breaking temperatures in March, May and September.


Electricity generation also increased by about 4% in 2021 compared with the previous year, and was the major source of the emissions recorded, accounting for 62.7% of the total.


Other major emission sources were transport, accounting for 18.7% of the total, and waste management, which accounted for 8.4%.


The bureau said preliminary data show that GHG emissions in 2022 were lower than those in 2021 and on a par with total emissions in 2020.


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