Ship

The category /transport/ship contains data and methodologies for calculating ship-associated greenhouse gas emissions. Several subcategories are available which provide functionality for calculating passenger-oriented emissions and those related to ship-based freighting of goods.

Generic ship transport

The Generic ship transport category contains greenhouse gas emissions data relating to ferry travel relating to the United Kingdom and Republic of Ireland. The methodology uses distance-based, per passenger emissions factors, requiring the user to specify the distance travelled. Users may calculate according to single 'one-off' journeys, or by repeated journeys, and specific options relate to walk-on and car-associated ferry travel. This category returns CO₂ emissions only and should be considered as a useful first entry point for ship-related transport.

Generic ship transport by DEFRA

The DEFRA ship transport category contains greenhouse gas emissions data relating to ferry travel, sourced from the UK government agency DEFRA. The methodology uses distance-based, per passenger emissions factors, requiring the user to specify the distance travelled and returns CO₂, CH₄ and N₂O emissions related to walk-on or car-associated ferry travel.

Ship freighting

The Ship freighting category provides data and methodologies sourced from the UK government agency DEFRA and the World Resources Institute Greenhouse Gas Protocol (GHGP) for calculating greenhouse gas emissions related to ship-based freighting. These methodologies use distance-based, per mass of freight emissions factors, requiring the user to specify the distance and mass of freight transported in order to obtain an emissions estimate.