Reducing GHG emissions from ships in a port area

Climate change has recently received more attention in the shipping sector. This is mainly due to a growingdemand for reduced global emissions and the fact that shipping is one of the fastest growing sectors in termsof greenhouse gas (GHG) emissions. In parallel, ports have started to introduce programmes and policies toaddress these emissions.This study aims at quantifying potential reductions of ships\u27 emissions of GHG fromefforts implemented by ports.Building on a model that calculates GHG emissions from ships in various scenarios for individual ports, differentkinds ofmeasures for emission reductions are investigated for diverse types of vessels and parts of the port area.A case study of the ship traffic to the Port of Gothenburg is performed. Projections of ship emissions in the portarea for 2030 are made, and three scenarios, ‘1. Alternative fuel’, ‘2. Ship design’ and ‘3. Operation’, are analysed.These scenarios are related to a business as usual development. GHG emissions from ships in the port areprojected to increase by 40% to 2030 in a business as usual (BAU) scenario. The highest reductions were seenin the ‘Operation’ scenario where GHG emissions were 10% lower than the BAU level