A carbon footprint calculation method for green logistics and maritime supply chains
LEONARDI ; BROWNE ; RIZET ; CORNELIS
Type de document
COMMUNICATION AVEC ACTES INTERNATIONAL (ACTI)
Langue
anglais
Auteur
LEONARDI ; BROWNE ; RIZET ; CORNELIS
Résumé / Abstract
Objective of this research was to develop further a carbon footprint calculation method for the maritime supply chain and analyse more in depth the maritime sector within a European carbon footprint case study. It is also aiming at identifying possible logistics decision options on how to reduce the specific fuel use of the maritime segment in the supply chain. Starting from a survey comparing more than 25 import supply chains in UK, France and Belgium, collected among major companies, the main shipping characteristics and impact factors were identified and the calculation method was developed. The approach is developing new conversion coefficients, leading to internationally comparable final values for each supply chain and each trip, and expressed in gram oil equivalent per kg product and gram CO2 equivalent per kg. On one of the longest possible trip for imports from the Southern Hemisphere, an optimisation potential of about 20% was identified, when using different vessels and routes. Another potential choice was assessed, where the shipping line was using a regional hub, leading to shorter trip duration. The results are sensitive to technical changes like vessel size, speed or draft, and organisational logistics change like design of shipping line networks and number of port calls. The case study approach presents limitations, compared to freight transport surveys, due to the limited number of supply chain observations with complete data collection from origin to destination. Only standard international maritime routes, common products, major container lines and vessels of average size were surveyed. Through this selection of standard cases, it becomes more likely that the outcomes will be transferable. This research contributes to the development of methodologies for calculating ghg emissions in maritime transport services. It sets limits to the system observed, propose answers to the questions of how to allocate space, volume and weight to the product considered and how to complete the load factor calculation. Due to its approach, the method developed would be useable for companies and public sector organisations, contributing to the detection of potential reduction strategies.
Editeur
IAME International Association of Maritime Economists, CARGO EDICOES, LDA
