Letters | Onshore power in Hong Kong could bring about a sea change in emissions
Readers discuss how the city can lower maritime emissions, and the next generation’s contribution to the fight against climate change
Shipping accounts for around 3 per cent of global greenhouse gas (GHG) emissions. In 2023, the International Maritime Organisation published a GHG reduction strategy aiming for the international shipping sector to reach net-zero GHG emissions by or around 2050.
The Cruise Lines International Association has committed to sustainability by having almost 80 per cent of its member fleet ready to connect to onshore power by 2028, among other eco-friendly measures to meet net-zero emissions by 2050.
Before the introduction of shore power, when a vessel was docked, its auxiliary engines would keep running to provide electricity for the vessel while emitting air pollutants like sulphur dioxide, nitrogen oxides and particulates, threatening the health of people living or working near the port area.
Using electricity provided by shore power can reduce carbon dioxide emissions by over 30 per cent and nitrogen oxides and particulates by 95 per cent. Officials are aware of the economic benefits of green ports, including for tourism, cargo logistics and health costs.
In early 2022, port authorities and governments worldwide, joined by the European Investment Bank, signed a declaration at the One Ocean Summit, where they agreed to install shore-side electricity supply by 2028 for cruise and container vessels.